Service Manual: 17" LCD Monitor LM725
Service Manual: 17" LCD Monitor LM725
SERVICE MANUAL
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                                   LM725
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  THESE DOCUMENTS ARE FOR REPAIR SERVICE INFORMATION ONLY. EVERY REASONABLE EFFORT HAS
BEEN MADE TO ENSURE THE ACCURACY OF THIS MANUAL; WE CANNOT GUARANTEE THE ACCURACY OF
THIS INFORMATION AFTER THE DATE OF PUBLICATION AND DISCLAIMS RE LIABILITY FOR CHANGES,
ERRORS OR OMISSIONS.
                                             1
                                                               AOC LM725
                             Table of Content
Revision List………………………………………………………………………………………………………….                3
1. Monitor Specifications…………………………………………………………………………………………..         4
2. LCD Monitor Description………………………………………………………………………………………..         5
3. Operating Instructions…………………………………………………………………………………………..         6
 3.1 General Instructions…………………………………………………………………………………………...        6
 3.2 Front Panel Control…………………………………………………………………………………….……...        6
 3.3 Adjusting the Picture…………………………………………………………………………………………..        7
4. Input/Output Specification……………………………………………………………………………………...      9
 4.1 Input Signal Connector………………………………………………………………………………………..        9
 4.2 Factory Preset Display Modes………………………………………………………………………………..     10
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 4.3 Power Supply Requirements…………………………………………………………………………………         11
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 4.4 Panel Specification………………………………………………………………………………………….…          11
  4.4.1 Panel Feature……………………………………………………………………………….…………….            11
  4.4.2 Display Characteristics……………………………………………………………….…………………..     11
  4.4.3 Optical Characteristics……………………………………………………………………………………       12
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  4.4.4 Electrical Characteristics…………………………………………………………………………………     13
5. Block Diagram………………………………………………………………………………………………….…               14
 5.1 Monitor Explored View………………………………………………………………………………………...        14
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 5.2 Software Flow Chart…………………………………………………………………………………………...         15
 5.3 Electrical Block Diagram………………………………………………………………………………………        17
  5.3.1 Main Board………………………………………………………………………………………………..              17
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                                    2
                                                          AOC LM725
                            Revision List
Version     Date       Revision History      TPV Model Name
 A00      Mar-09-06     Initial Revision     T782KSQHMCPGA
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                                                                                        AOC LM725
1. Monitor Specifications
Items Description
Type LTM170EU-L21
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                          Response time (type)              8 ms
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                          Sync. Type                        H/V TTL
                                                            15Pin Analog
                          Input Signal
    Input                                                   24Pin Digital
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                          H-Frequency                       30kHz – 80kHz
                          V-Frequency                       55-75Hz
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                          ON Mode                           ≤45W
    Power Consumption
                                                            ≤2W
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                          OFF Mode
                          Horizontal : 337.920mm
    Maximum Screen Size
                          Vertical: 270.336mm
                          Operating Temp: 5°C to 35°C
    Environmental
                          Storage Temp: -20°C to 60°C
    Conditions
                          Operating Humidity: 10% to 85%
                                                   4
                                                                                                       AOC LM725
2. LCD Monitor Description
The LCD MONITOR will contain a main board, a power board, a keypad board and an audio board which house the flat
panel control logic, brightness control logic and DDC.
The power board will provide AC to DC Inverter voltage to drive the backlight of panel and the main board chips each
voltage.
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                                                                   Flat Panel and
                                    CCFL Drive.
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                                                                   CCFL backlight
                                                                                            RS232 Connector
            PWPC board
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                                                            Main Board                      For white balance
     (Include: adapter, inverter)
                                                                                            adjustment in factory
                                                                                            mode
                                              Audio board
                                                         .w      Keyboard
               AC-IN
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                                                                                    Video signal,
               100V-240V
                                                                         HOST Computer
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                                                            5
                                                                                                          AOC LM725
3. Operating Instructions
3.1 General Instructions
    Press the power button to turn the monitor on or off. The other control buttons are located at front panel of the
    monitor. By changing these settings, the picture can be adjusted to your personal preferences.
       •     The power cord should be connected.
       •     Connect the video cable from the monitor to the video card.
       •     Press the power button to turn on the monitor position. The power indicator will light up.
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    The Auto Adjust Key is used to automatically set the H Position, V Position, Clock and Phase.
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-   Power Indicator:
    Green    — Power On mode.
    Orange — Power Saving mode.
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       1      Auto
                                1.Move the cursor to left
       2      VOL- /                                                          Activate the volume menu
                                2. Decrease the value of the selected item
                                1.Move the cursor to right
       3      VOL+ /                                                          Activate the volume menu
                                2.Adjust up when menu item selected
       4      MENU             Select Function or select Sub menu             Activate OSD main menu
       5      Power            Power On / Off                                 Power On / Off
       6      Indicate light   Green—On         Orange—Save                   Green—On         Orange—Save
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                                                                                                    AOC LM725
3.3 Adjusting The Picture
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                    Main                    Sub
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  Main Menu Item    Menu    Sub Menu Item   Menu                    Description                    Reset Value
                    Icon                    Icon
                                                                                                   Recall Cool
                               Contrast                    Contrast from Digital-register.
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                                                                                                  Contrast Value
    Luminance
                                                                                                   Recall Cool
                              Brightness                       Backlight Adjustment
                                                                                                 Brightness Value
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                                                          Adjust Picture Phase to reduce
                                Focus                                                            Do Auto Config
                                                               Horizontal-Line noise
   Image Setup
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                                                          Adjust picture Clock to reduce
                                Clock                                                            Do Auto Config
                                                                Vertical-Line noise.
                                                                                                 Temperature will
    Color Temp.               User / Red                  Red Gain from Digital-register.         be set to Cool.
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                                                                                   AOC LM725
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                Español      N/A       Set OSD display language to Spain.
                                                                                   English.
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                Italiano     N/A       Set OSD display language to Italian.
                                           Set OSD display language to
               简体中文          N/A
                                                simplified Chinese.
                                       Show the resolution, H/V frequency
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Information   Information    N/A                                                     N/A
                                       and input port of current input timing.
                                              Clear each old status of
                  Yes        N/A       Auto-configuration and set the color          N/A
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  Reset                                        temperature to Cool.
                                       Do not execute reset, return to main
                   No        N/A                                                     N/A
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                                                       menu.
                                   8
                                                                                   AOC LM725
4. Input/Output Specification
4.1 Input Signal Connector
              1.                  Red                      9.           +5V
              2.                 Green                     10.     Logic Ground
              3.                 Blue                      11.    Monitor Ground
              4.             Monitor Ground                12.    DDC-Serial Data
              5.              DDC-Return                   13.        H-Sync
              6.               R-Ground                    14.        V-Sync
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              7.               G-Ground                    15.    DDC-Serial Clock
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              8.               B-Ground
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                                            1          5
                                            6         10
                                            11        15
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                                                 9
                                                                                          AOC LM725
4.2 Factory Preset Display Modes
                                        VESA MODES
                                                 Horizontal             Vertical
                                           Nominal       Sync      Nominal         Sync    Nominal
                                          Frequenc      Polarity    Freq.     Polarity      Pixel
  Mode       Resolution       Total
                                              y                    +/- 1 Hz                 Clock
                                          +/- 0.5kHz                                        (MHz)
           640x480@60Hz     800 x 525      31.469             N    59.940           N      25.175
  VGA      640x480@72Hz     832 x 520      37.861             N    72.809           N      31.500
           640x480@75Hz     840 x 500      37.500             N     75.00           N      31.500
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           800x600@56Hz    1024 x 625      35.156         N/P      56.250          N/P     36.000
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           800x600@60Hz    1056 x 628      37.879             P    60.317           P      40.000
 SVGA
           800x600@72Hz    1040 x 666      48.077             P    72.188           P      50.000
           800x600@75Hz     1056x625       46.875             P    75.000           P      49.500
          1024x768@60Hz     1344x806       48.363             N    60.004           N      65.000
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  XGA     1024x768@70Hz     1328x806       56.476             N    70.069           N      75.000
          1024x768@75Hz     1312x800       60.023             P    75.029           P      78.750
          1280x1024@60Hz   1688x1066
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                                           63.981             P    60.020           P      108.000
 SXGA
          1280x1024@75Hz   1688x1066       79.976             P    75.025           P      135.000
                                        IBM MODES
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                                                 Horizontal             Vertical
                                           Nominal                                         Nominal
                                                                   Nominal
                                          Frequenc       Sync                      Sync     Pixel
 2Mode      Resolution       Total                                  Freq.
                                              y         Polarity              Polarity      Clock
                                                                   +/- 1 Hz
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                                        MAC MODES
  VGA     640x480@67Hz      864x525        35.000             N    66.667           N      30.240
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                                            10
                                                                                                         AOC LM725
4.3 Power Supply Requirement
        A/C Line voltage range                   100 V ~ 240 V
         A/C Line frequency range                50 ± 3Hz, 60 ± 3Hz
         Peak surge current                      < 55A peak at 240 VAC and cold starting
         Leakage current                         < 3.5mA
                                                 No advance effects (no loss of information or defect)
         Power line surge
                                                 with a maximum of 1 half-wave missing per second
         DC output Voltage                       12VDC± 5%
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4.4.1 Panel Feature
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         High contrast ratio, high aperture structure
         TN(Twisted Nematic) mode
         Wide viewing angle
         High speed response
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         SXGA(1280 x 1024 pixels) resolution
         Low power consumption
         2 dual CCFTs(Cold Cathode Fluorescent Tube)
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         DE(Data Enable) mode
         LVDS (Low Voltage Differential Signaling) interface (2pixel/clock)
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         Compact size design
         Pb-free configuration
         RoHS compliance
                                                        11
                                                                                     AOC LM725
4.4.3 Optical Characteristics
                                * Ta = 25 ± 2°C, VDD=5V, fv= 60Hz, fDCLK=54MHz, IL = 6.5mArms
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                                              12
                                               AOC LM725
4.4.4 Electrical Characteristics
    1. TFT LCD Module:
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    2. Back Light Unit:
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                                    13
                                               AOC LM725
5. Block Diagram
5.1 Monitor Exploded View
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                                                                  AOC LM720A
                                                Y
                                      2             3
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                                                N
                                      5
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                                      6
                                                N
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                                           Y
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                                                N
                                      10            11
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                                  N                      N
                                      12            13
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Y Y
                                                         N
                                      14            15       16
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17
                                  N
                             18       19
                                           15
                                                                                      AOC LM720A
REMARK:
1) MCU initialize.
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8) Enter factory mode.
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9) Save the power key status into EEprom.
  Turn on the LED and set it to green color.
  Scalar initialize.
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10) In standby mode?
16) Display "No connection Check Signal Cable" message. And go into standby mode after the message
disappear.
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                                                     16
                                                                        AOC LM720A
5.3 Electrical Block Diagram
5.3.1 Main Board
                    Crystal
                                              LCD Interface
                    20MHZ
                                                (CN503)
                    (X601)
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                                                  (U401)
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         EPR_SDA
         EPR_SCL
                                                         H sync
                                                                       D-Data
                                                         V sync
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    EEPROM          Key Board                                          D-Clock
                                                           RGB
     24LC16B        Control
      (U602)
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                                  Crystal         D-Sub            D-Sub
                                14.318MHZ       Connector         Connector
                                 (X401)          (CN301)          (CN302)
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DB15_SDA, DDC2_SDA,
                                                     DB15_SCL          DDC2_SCL
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                                               EEPROM             EEPROM
                                                M24C02             M24C02
                                                (U301)             (U302)
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                                                                                                    AOC LM720A
5.3.2 Inverter/Power Board
                                                                   Over       Feedback
                               PWM
                               Control IC                          Voltage    Circuit
                                                                   Protect
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                                                                                                    ON/OFF
                         OSC and
                          Output                 DC Convert          MOSFET
                          Circuit                Circuit
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   Lamp
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                                                                                                                                                                                                       AOC LM725
6. Schematic
6.1 Main Board
     715L1237-1
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                         MST8031/8131 SCHEMATIC                                B2
                                         B1
                                                               RIN                  RIN
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                                                             GNDR                   GNDR
                                              TXD              GIN                  GIN
                                              RXD            GNDG                   GNDG
                                              DDC_CLK         SOG                   SOG                           VCC2.5     VCC3.3 VAA1      VAA2       VAA3     VAA4
                                              DDC_DAT          BIN                  BIN
                                                             GNDB                   GNDB
                                              ST_DET1       HSYNC                   HSYNC
                                              ST_DET2       VSYNC                   VSYNC
VCC2.5
VCC3.3
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                                                                  R+                R+                    VAA1
                                                                   R-               R-
                                                                  G+                G+                    VAA2
                                                                   G-               G-
                                                                   B+               B+                    VAA3
                                                                   B-               B-
                                                                 CLK+               CLK+                  VAA4
                                                                 CLK-               CLK-
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                                         3.INPUT
B3
                                              ST_DET2
                                              ST_DET1
                                              DDC_CLK         CSZ                   CSZ
                   VCPU VCC12V VCC5V           DDC_DAT        SCL                    SCL
                                              RXD             SDA                   SDA
                                              TXD         HWRESET                   HWRESET
                                                               INT                  INT
VCC5V
                                              VCC12V
                                                                 AD0
                                                                 AD1
                                                                 AD2
                                                                 AD3
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                                                                                    AD1
                                                                                    AD2
                                                                                    AD3
                                                                                                       PA[0..9]
                                                                                                                           PA[0..9]
                                                                                                                                              B5
                                                                                                                                                   PA[0..9]
                                              VCPU
                                                             Volume                 Volume
                                               onPANEL_5V/3.3V                                                                                                                 VLCD
                                  VCPU        onBACKLITE                                                                   PB[0..9]
                              VCC12V                                                                   PB[0..9]                                    PB[0..9]
                            VCC3.3
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                          VCC2.5         6.MCU
                          VAA1
                        VAA2                                                                                                                                    VLCD
                      VAA3
                    VAA4
                  VCC5V                  B4
                                              onBACKLITE
                                               onPanel_5V/3.3V                                                                                5.PANEL INTERFACE
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                                               VCPU
                                              VCC12V
                                               VCC3.3
                                              VCC2.5     AdjBACKLITE                AdjBACKLITE
                                              VAA1                      VLCD
                                               VAA2
                                              VAA3
                                               VAA4
                                               VCC5V                                                                                  Title
                                                               VLCD            4.SCALER
                                                                                                                                                       MST8031 / MST8131 for AOC
                                                                                                                                      Size    Document Number                                              Rev
                                         2.POWER                                                                                        B                              TOP                                  D
                                                                                                                                      Date:        Wednesday, April 14, 2004          Sheet   1   of   6
                                                                                                  19
                                                                                                                                                                                                                                                                                                                                                                AOC LM725
                                          CN301
                                                                           RXD             6
                                            DB15
                                                                           TXD             6
                              11             1                                                                                 FB301            0  1/16W                                                            R301       100  1/16W C304 0.047uF
                                                                                                                                                                                                                                                             RIN       4
                                             6
                              12             2                                                                                 FB302            0  1/16W                                                            R302       100  1/16W C305 0.047uF
                                                                                                                                                                                                                                                             GIN       4
                                             7
                              13             3                                                                                 FB303            0  1/16W                                                            R303       100  1/16W C306 0.047uF
                                                                                                                                                                                                                                                             BIN       4
                                             8
                              14             4                                                                                                                                                                      R304       470  1/16W C307 0.001uF
75 1/16W
                                                                                                                                                                                               75  1/16W
                                                                                                                                                                                                                                                             SOG       4
R326
                                                                                                                                                                                                  R327
                                             9          PC5V                                                                                         R325       C301                   C302                C303
                              15             5
                                             10        VGA_CON                                                                                  75  1/16W       NC                     NC                  NC
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D322   D323                                                                                                                                                                                                         R305       100  1/16W C308 0.047uF
                                                                                                                                                                                                                                                             GNDR      4
       TZMC5V6-GS08
TZMC5V6-GS08                                                                                                                                                                                                        R306       100  1/16W C309 0.047uF
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                                                                                                                                                                                                                                                             GNDG      4
                                                                                                                                                                                                                    R307       100  1/16W C310 0.047uF
                                                                                                                                                                                                                                                             GNDB      4
                                                                                                                               3
                                                                                   D301                    D302                    D303
                                                                                   BAV99                   BAV99                   BAV99                                                                            VCC5V
                                                                                                                                               VCC5V
                                                                                                                                                                                                                        R308
10K 1/16W
                                                                                                                                       1
                                                                                                                                                                                                                                                                                                          VCC5V
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                                                                                                                                                                                                                            R309     100  1/16W                                                                        PC5V
                                                                                                                                                                                                                                                     ST_DET1 6
                                                                                                                                                                                                                                                                                                                           2
                               HSI                                 FB304                       150 OHM                                                                                                                      R310     1K  1/16W
                                                                                                                                                                                                                                                     HSYNC       4
                                                                                                                                                                                                                                                                                                                                   D304
                                                                                                                                                                                                                                                                                                                   1
                               TZMC5V6-GS08             TZMC5V6-GS08                                                                                                                                                    TZMC5V6-GS08
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                                                                                                                                       2.2K  1/16W     33pF          10K  1/16W                   220pF                                                                                   R317      R318                                                                 C313
                                                                                                                                                                                                                                                                                                    10K  1/16W                     U301
                                                                                                                                                                                                                                                                                10K  1/16W                                     8                            1            0.1uF
                                                                                                                                                                                                                                                                                                                               7       VCC       A0         2
                                                                                                                                               CLK_DDC                                                                                                                 R315    100  1/16W                                      6       WP        A1         3
                                                                                                                                               DAT_DDC                                                                                                                 R316    100  1/16W                                      5       SCL       A2         4
                                                                                                                                                                                                                                                                                                                                       SDA      GND
                                                                                                                                                                                                                                                                                                                                   M24C02WMN6
                      CN302
                                                        D321                       D318
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                                                                                                                                                                                                                                                             6       DDC_DAT
                                     25                 TZMC5V6-GS08               TZMC5V6-GS08
                              R                                                                                                                                                                                                                              6       DDC_CLK
                                     26
                              G      27                                                                                                                                                                                                                                                                     VCC5V          DVI5V
                              B      29
                       RGB GND
                                                                                                                                                                                                                                                                                                                               2
                                     28
                         HSYNC       8                                                                                                                                                                                                                                                                                                 D305
                         VSYNC       15
                      SYNC GND       6             CLK_DDC2                                                        R319            100  1/16W                   DVI5V                                                                                                                                                                  BAV70
                       DDC SCL       7             DAT_DDC2                                                        R320            100  1/16W                             R321
                       DDC SDA       14                                                                                                                                 10K  1/16W
                            +5V      16                                                                                                                                                           R322            100  1/16W
                           HPD                                                                                                                                                                                                       ST_DET2 6
                                                                                                                                                                                                                                                                                                                       1
                                     11
                        1/3shield    3                                         D314                            D315                        D316                      C314                                                                                                                 R323      R324                                                                   C315
                        2/4shield
                        0/5shield
                        clk shield
                          DAT0+
                          DAT0-
                                     19
                                     22
                                     18
                                     17
                                                                               LL5232B 5.6V 5%
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                                                                                                               LL5232B 5.6V 5%             LL5232B 5.6V 5%
                                                                                                                                                                     0.1uF
                                                                                                                                                                                                                                     B+
                                                                                                                                                                                                                                     B-
                                                                                                                                                                                                                                                 4
                                                                                                                                                                                                                                                 4
                                                                                                                                                                                                                                                                                10K  1/16W
                                                                                                                                                                                                                                                                                                    10K  1/16W
                                                                                                                                                                                                                                                                                                                                   8
                                                                                                                                                                                                                                                                                                                                   7
                                                                                                                                                                                                                                                                                                                                   6
                                                                                                                                                                                                                                                                                                                                   5
                                                                                                                                                                                                                                                                                                                                       U302
                                                                                                                                                                                                                                                                                                                                        VCC
                                                                                                                                                                                                                                                                                                                                        WP
                                                                                                                                                                                                                                                                                                                                        SCL
                                                                                                                                                                                                                                                                                                                                        SDA
                                                                                                                                                                                                                                                                                                                                                       A0
                                                                                                                                                                                                                                                                                                                                                       A1
                                                                                                                                                                                                                                                                                                                                                       A2
                                                                                                                                                                                                                                                                                                                                                      GND
                                                                                                                                                                                                                                                                                                                                                                1
                                                                                                                                                                                                                                                                                                                                                                2
                                                                                                                                                                                                                                                                                                                                                                3
                                                                                                                                                                                                                                                                                                                                                                4
                                                                                                                                                                                                                                                                                                                                                                           0.1uF
                                     10
                          DAT1+                                                                                                                                                                                                      G+          4
                                     9                                                                                                                                                                                                                                                                                                 M24C02WMN6
                          DAT1-                                                                                                                                                                                                      G-          4
                                     2
                          DAT2+                                                                                                                                                                                                      R+          4
                                     1
                          DAT2-                                                                                                                                                                                                      R-          4
                                     13
                          DAT3+      12
                          DAT3-      5
                          DAT4+      4
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                          DAT4-      21
                          DAT5+      20
                          DAT5-      23
                            clk+                                                                                                                                                                                                     CLK+        4
                                     24
                            clk-                                                                                                                                                                                                     CLK-        4
                                                       3
                                          VCC5V
                                                                                                                                                                                                                                                                                  Title
                                                   2
                                                                                                                                                                                               20
                                                                                                                                                                                                                                                                                                       AOC LM725
                                                                                                                                                    VCC3.3 FB401          VPO                                                                                VCC2.5 FB402          VDD
                                                                                                                          2       VCC3.3                                                                                         2          VCC2.5
                                                                                                                                                           600 OHM                                                                                                  600 OHM
                                                                                                                                                                 C405         +                                                                                           C414       +
                                                                                                                                                               10uF/16V                                                                                                 10uF/16V
                                  VAD     VPLLVDVI                                VDPLL        VPO      VDD
                                                                                                                                                                                  C406C407C408C409C410C411C412C413                                                                           C415C416C417C418
                                                                                                                                                                                  0.1uF0.1uF0.1uF0.1uF0.1uF0.1uF0.1uF0.1uF                                                                   0.1uF0.1uF0.1uF0.1uF
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                                                                                              104
                                                                                              114
                                                                                              126
                                                                                                     117
                                  55
                                  65
35
                                                           45
                                                           51
53
                                                                                              11
                                                                                              21
                                                                                              84
                                                                                              94
                                                                                                     18
                                                                                                     87
                                                                                                     97
                          U401
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                                                                                   AVDD_PLL
                                           AVDD_MPLL
                                                                   AVDD_DVI
                                                                   AVDD_DVI
                                                                                              VDDP
                                                                                              VDDP
                                                                                              VDDP
                                                                                              VDDP
                                                                                              VDDP
                                                                                              VDDP
                                                                                              VDDP
                                   AVDD
                                   AVDD
                                                                                                     VDDC
                                                                                                     VDDC
                                                                                                     VDDC
                                                                                                     VDDC
                                                                                                                   102   PA0
                          63                                                                               LVA3P   103   PA1
  3       RIN                    RIN0                                                                     LVA3M
                          62                                                                                       106   PA2
  3     GNDR                     RIN0M                                                                   LVACKP
                          60                                                                                       107   PA3
  3       GIN                    GIN0                                                                    LVACKM
                          59                                                                                       108   PA4
  3     GNDG                     GIN0M                                                                     LVA2P
                          61                                                                                       109   PA5
  3      SOG                     SOGIN0                                                                   LVA2M
                          58                                                                                       110   PA6
  3       BIN                    BIN0                                                                      LVA1P
                          57                                                                                       111   PA7
  3     GNDB                     BIN0M                                                                    LVA1M
                          37                                                                                       112   PA8
  3    HSYNC                     HSYNC0                                                                    LVA0P
                          38                                                                                       113   PA9                                                                                                                                     VAA1 FB403          VAD
  3    VSYNC                     VSYNC0                                                                   LVA0M
                                                                                                                                                  jel
                          29                                                                                                                        PA[0..9]
                                 DDC1_CLK/GPO8                                                                                                                        PA[0..9]      5
                          28
                                 DDC1_DAT/GPO7                                                                                                                                                                                   2            VAA1
                                                                                                                                                                                                                                                                        600 OHM
                                                                                                                                                                                                                                                                            C419         +
  3        R+             40                                                                                                                                                                                                                                              10uF/16V
                          41     R+
  3        R-                    R-
  3        G+             43                                                                                                                                                                                                                                                                   C420C421
                          44     G+                                                                                118   PB0                                                                                                                                                                   0.1uF0.1uF
  3        G-                    G-                                                                    NC/LVB3P                                     PB[0..9]
                          46                                                                                       119   PB1
  3        B+                    B+                                                                    NC/LVB3M                                                       PB[0..9]      5
                                                                                                                                                .w
                          47                                                                                       120   PB2
  3        B-                    B-                                                                   NC/LVBCKP
                          49                                                                                       121   PB3
  3      CLK+                    CK+                                                                  NC/LVBCKM
                          50                                                                                       122   PB4
  3      CLK-                    CK-                                                                   NC/LVB2P
                          52                                                                                       123   PB5
VDVI                             REXT                                                                  NC/LVB2M
        R403 390  1/16W                                                                                            124   PB6
                                                                                                       NC/LVB1P    125   PB7
                                                                                                       NC/LVB1M    128   PB8                                                                                                                                     VAA2     FB404      VPLL
                                                                                                       NC/LVB0P    1     PB9
                          66                                                                           NC/LVB0M
                                 REFP                                                                                                                                                                                            2            VAA2
                                                                                                                              ww
                  C401                                                                                                                                                                                                                                                  600 OHM
                                                                                       MST8031/8131
                  0.1uF   67                                                                                                                                                                                                                                                C422         +
                                 REFM                                                                                                                                                                                                                                     10uF/16V
                                                                                                                                                                                                                                                                                               C423
                                                                                                                                                                                                                                                                                               0.1uF
  6     CSZ               69
                          71     CSZ
  6     SCL                      SCL
  6     SDA               70
                          32     SDA                                                                                                                                                                                                                             VAA3     FB405      VDVI
  6 HWRESET                      HWRESETZ
                          72                                                                                             VCC5V
  6         INT                  INT
                                                                                                       //w                R407 R405 R404 R406
                                                                                                                                                                                                                                 2            VAA3
                                                                                                                                                                                                                                                                        600 OHM
                                                                                                                                                                                                                                                                            C424
                                                                                                                                                                                                                                                                          10uF/16V
                                                                                                                                                                                                                                                                                         +
        C402 22pF         33                                                                                       30
                                 XIN                                                                     ADO/NC                                            AD0            6
                                                                                                                   77
                                                                                                         AD1/NC                                            AD1            6
                                                                                                p:
                  X401                                                                                             78                                                                   R402
                                                                                                         AD2/NC                                            AD2            6
                                                                                                                   31                                                                                                                                            VAA4     FB406      VDPLL
        14.318MHz                                                                                        AD3/NC                                            AD3            6              100  1/16W
                          34
                                 XOUT                                                                                                                                                                                            2            VAA4
        C403 22pF                                                                                                  6                                                                                                                                                    600 OHM
                                                                                                     BUS TYPE/NC
       C404     0.1uF      3                                                                                                                                                                                                                                                C427         +
                           2     BYPASS                                                                                                                                                  R401                                                                             10uF/16V
                                 AVSS_LPLL
                                                       AVSS_MPLL
                                                                                                                                                                                         NC
                                                                   htt
                                                                       AVSS_PLL
                                                                                   AVSS_DVI
                                                                                   AVSS_DVI
                                                                                   AVSS_DVI
                                                                                                                                                                                                                                                                                               C428
                                                                                                                                                                                                                                                                                               0.1uF
                                                                                                      86 GNDC
                                                                                                      96 GNDC
                                                                                                      116 GNDC
                                                                                                          GNDC
                                                                                               GNDP
                                                                                               GNDP
                                                                                               GNDP
                                                                                               GNDP
                                                                                               GNDP
                                                                                               GNDP
                                                                                               GNDP
                                   AVSS
                                   AVSS
                                   AVSS
R401 R402
36
54
                                                                                  39
                                                                                  42
                                                                                  48
                                                                                              10
                                                                                              20
                                                                                              85
                                                                                              95
19
                                                                                                                                                      21
                                                                                                                                     AOC LM725
               PA[0..9]
4   PA[0..9]              PA0   LVA3P
                          PA1   LVA3M                                 CN503
                          PA2   LVACKP
                          PA3   LVACKM         LVB0M     RXO0-    1                2         RXO0+      LVB0P
                          PA4   LVA2P          LVB1M     RXO1-    3                4         RXO1+      LVB1P
                          PA5   LVA2M          LVB2M     RXO2-    5                6         RXO2+      LVB2P
                                               LVBCKM    RXOC-    7                8         RXOC+      LVBCKP
                                                                                   t
                          PA6   LVA1P          LVB3M     RXO3-    9                10        RXO3+      LVB3P
                          PA7   LVA1M          LVA0M     RXE0-   11                12        RXE0+      LVA0P
                                                                 .ne
                                               LVA1M     RXE1-   13                14        RXE1+      LVA1P
                          PA8   LVA0P          LVA2M     RXE2-   15                16        RXE2+      LVA2P
               PB[0..9]   PA9   LVA0M          LVACKM    RXEC-   17                18        RXEC+      LVACKP
4   PB[0..9]              PB0   LVB3P          LVA3M     RXE3-   19                20        RXE3+      LVA3P
                          PB1   LVB3M                            21                22
                          PB2   LVBCKP                           23                24
                          PB3   LVBCKM
                                             jel
                          PB4   LVB2P
                          PB5   LVB2M                                 CONN                                       R502
                          PB6   LVB1P
                          PB7   LVB1M                                                                            0  1/16W
                          PB8   LVB0P                                       VLCD
                          PB9   LVB0M
                                           .w
                                                                                             VLCD       2
C509
                                          ww
                                                  +                       C510                        C511
                                         //w
                                p:
                                                                  Title
                          htt
                                                22
                                                                                                                                                                                                                                                                                                                                        AOC LM725
                                                                                                                                                                                    VCPU
2 VCPU
                                                                                                                                                                                                                8
                                                                                                                                                                                                                7
                                                                                                                                                                                                                6
                                                                                                                                                                                                                5
                                                                                                                                                                                                                8
                                                                                                                                                                                                                7
                                                                                                                                                                                                                6
                                                                                                                                                                                                                5
                                                                                                                                                                                                     RN601
                                                                                                                                                     R601      R602      C601                                                      RN602
                                                                                                                                                                                                 10K  1/16W
                                                                                                                                           10K  1/16W                 0.1uF                                                         10K  1/16W
                                                                                                                                                            10K  1/16W
                                                                                                                                                                                                                1
                                                                                                                                                                                                                2
                                                                                                                                                                                                                3
                                                                                                                                                                                                                4
                                                                                                                                                                                                                1
                                                                                                                                                                                                                2
                                                                                                                                                                                                                3
                                                                                                                                                                                                                4
                                                                                                                                   C602 22pF
44
                                                                                                                                                                                                                                                   t
                                                                                                                                                                        U601
                                                                                                                                             X601                  35                                    43                               POWER
                                                                                                                                                                                     VCC
                                                                                                                                                                        EA/VP                    P0.0    42                               ENTER
                                                                                                                                                                                                                          .ne
                                                                                                                                                                   21                            P0.1    41                               RIGHT
                                                                                                                   +    C603           20MHz                            XTAL1                    P0.2    40                               LEFT
                 VCPU                                                                                                   10uF/16V                                                                 P0.3    39                               AUTO
                             U603         MAX810STR                                                                                                                20                            P0.4    38                               LED_B
                                                                                                                                   C604 22pF                            XTAL2                    P0.5    37                               LED_O
                        3                        2                                                                                                                 10                            P0.6    36                               LED_G
                             VCC          RST                                                                                                                           RESET                    P0.7
                                    GND
                                                                                                                                                                                                         24                                           R636         0  1/16W
                                                                                                                                                                                                 P2.0                                                                            HWRESET 4
                                                                                                 D601       R603                                                   12                                    25
                                                                                                                                                                        P4.3                     P2.1                                                                            onPANEL_5V/3.3V 2
                                                                                                                                                                   14                                    26
                                                                                                             4                       INT                                INT0/P3.2                P2.2                                                                            onBACKLITE 2
                                                                                           LL4148-GS08 10K  1/16W                                                  15                                    27
                                    1
                                                                                                                                                                                  jel
                       Circuit                                                   VCPU                                                                              33                                    29
                                                                                                                                                                        ALE/P                    P2.5                                                                            SDA      4
                                                                                                                                                                   32                                    30          R606         10K  1/16W
                                                                                                                                                                        PSEN                     P2.6                                                                         VCPU
                                                                                                        R604 10K  1/16W              R608         100  1/16W        2                                    31          R607         10K  1/16W
                                          C605                                                          R605 10K  1/16W              R609         100  1/16W        3   P1.0                     P2.7
                                                             U602                                                                                                   4   P1.1                             16
                                                                                                                                                                        P1.2                 T0/P3.4                                                                                  AD0       4
                                          0.22uF      1                    8                                                                                        5                                    17
                                                          A0         VCC                                                                                                P1.3                 T1/P3.5                                                                                  AD1       4
                                                      2                    7                            R639            100  1/16W                                  6                                    18
                                                          A1          WP                                                                                                P1.4               P3.6/WR                                                                                    AD2       4
                                                      3                    6                                                                                        7                                    19
                                                          A2         SCL                                                                                                P1.5                P3.7/RD                                                                                   AD3       4
                                                      4                    5                                                                                        8                                    13          R610         NC
                                                                                                                                                                                                                                                                                      DDC_DAT   3
                                                                                                                                                                                     VSS
                                                          GND        SDA                                                                                            9   P1.6               P3.1/TXD      11          R611         NC
                                                                                                                                                                        P1.7               P3.0/RXD                                                                                   DDC_CLK   3
                                                      AT24C16N-10SC-2.7                      R638       NC                                                                                                           R634         100  1/16W
                                                                                                                                                                                .w
                                                                                                                                                                                                                                                                                      TXD       3
                                                                                                                         R615 10K  1/16W                                W78E65P-40                                   R635         100  1/16W
                                                                                                                                                                                                                                                                                      RXD       3
                                                                                                                                                                                    22
                                                                                                                         R614 10K  1/16W
                                                                    VCC12V
                                                     FB601 600 OHM
                                                                 VCC5V
                                                                                                                                                                                                                     VCPU         CN603
               CN601
                                                                                        VCC12V    2
                                                      FB602 600 OHM                                                                                              VCPU                                                         1                  R612R613
                                                                                                                                                                                                                              2    1                          C618
          1             2                                                                                                                                                                                                     3    2
                                                                                        VCC5V     2,3,4                                                                                                                            3
                                                                                                                                               ww
          3             4                                                                                                                                 R632          R631                                                  4                             0.1uF
          5             6                                                      R627     10K  1/16W                                   Standby                                                                                       4             NC 10K  1/16W
          7             8                                                      R626     10K  1/16W                                     Mute                 NC          NC
          9             10                                                                                                                                                                                                        NC
                              OUT-R+                                                                    3              ST_DET1                                                                          DVI-DSUB SELECT
OUT-L+   11             12                                                                                                                                                   R630    NC
                              OUT-R-                                                                    3              ST_DET2                                                                          Mute_key
OUT-L-   13             14                                                                   VCC5V                                                                           R633    NC
                                                             C613      C612       VCC5V
                                                                                                      NC
                                                                                                             1
                                                                                                                 //w   R641 NC
                                                                                                                                            Volume
                                                                                                                                             VCPU
                                                                                                                                                      4                                                                                             VCPU
                                                                                                                                                                                                                                                                                                    VCPU
                                                                                                    2
                                                                                                                                                                                                                                                     2
                                                     100pF             1uF/25V                                                                                                                                                                           PMBS3906                                       Q602
                                                                                                                                              2
                                                                                                                                                                                                                                                                                                    2
                                                                                                                         R616                                                                                                                               1     R629          LED_B                   PMBS3906
                                                                                                        LED_G                          1          Q601                                      CN602                                                                   4.7K  1/16W                            1         R619          LED_O
                                                                                           p:
                                                                                                                         4.7K  1/16W              PMBS3906
                                                                                                                                                                 DVI-DSUB SELECT            1              2    LED_BLUE            R637       470  1/16W                                                            4.7K  1/16W
                                                                                                                                                                                                                                                     3
                                                                                                                                                                 LED_GRN                    3              4    LED_ORANGE
                                                                                                                                              3
                                                                                                                                                                                                                                                                                                    3
                                                                                                        AUTO  R620               470  1/16W                                                 5              6                                                R621 470  1/16W ENTER
                                                                                                        RIGHT R622                470  1/16W                                                7              8                                                R623 470  1/16W   LEFT
                                                                                                        POWER R624               470  1/16W                                                 9              10
                                                                                                                                                                                           11              12      Mute_key
                                                                                                                                       C606       C608      C610        OUT-L+             13              14      OUT-R+              C616                 C609
                                                                                                                                                                        OUT-L-             15              16      OUT-R-                         C607
                                                                      htt
                                                                                                                                                                                                CONN                                                                          Title
                                                                                                                                                                                                                                                                                            MST8031 / MST8131 for AOC
                                                                                                                                                                                                                                                                              Size      Document Number                                             Rev
                                                                                                                                                                                                                                                                                B                          MPU                                       D
                                                                                                                                                                                                                                                                              Date:       Wednesday, July 21, 2004      Sheet       6      of   6
                                                                                                                                                                                    23
                                       AOC LM725
6.3 Power Board
   715L1103- 217A
                                  t
                                 .ne
                            jel
                          .w
                          ww
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                     p:
                    htt
                            24
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         p:
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25
                 ww
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                     jel
                        .ne
                           t
      
                               AOC LM725
                                                                                                                                                                                                      AOC LM725
6.2 Audio Board
   715L1144-1-IO
OUT_LOUT_R
                                                                                                                                             t
                                                                                                                          .ne
                                                                                                                                      +12V
                                                                                                                    12V
               PIN-3                                                                      CN202
                                                                                     WAFER 2*7P 2.54mm MUTE
13 14
                                                                                           jel
               PIN-1                                                                     11                    12
                                                                                          9                    10                       +                   +
                                                                VOLUME                    7                    8                              C201           C202             C203
                                                                                          5                    6                            470uF/16V       470uF/16V         0.1uF
                                                                                          3                    4
                                                                                          1                    2
                                                                                         .w
                                                                                 GND                                                         U201
               PIN-1
                                                                                         STANDBY
                                                                                                                                             TDA7496L                   GND
                                                                                                                         16
                                                                                                                               15
                                                                                                                    8
                                                                        ww
       CN204                                                                                                                                                               C205                       CN203
                                                                                                                          VS
                                                                                                                                VS
                                                                                                                    NC
                                                                               C204 0.47uF
                                                                                                                                                                              +
               1          R201 10K                                                                      4                                     17                                                  4
               2                                                                                             INL                     OUTL                                470uF/16V                3
               3                                                               C206 0.47uF              9                                     14                                                  2
                                                                                                                                                                              +
                                                                                                             INR                     OUTR
                          R203 10K                                                                                                                                                                1
                                                         //w      R212                                  6                                     10                              C207
  33L8022-3A-H FEMALE                                                                                        VOLUME                   SVR                                     470uF/16V
                                                                220K                                    11                                    7                                                  WAFER 4P2.0 R/A
                                                                                                             STBY             VAROUT_R
                                                                                                        12                                    5                 R207     R208              GND
                                                                                                             MUTE             VAROUT_L
1K
                                                                                                                                                                              1K 
                        GND              R210    R211
                                                                                                                    GND
                                                                                                                    GND
                                                                                                                    GND
                                                                                                                    GND
                                                                                                                    GND
                                                                                                                    GND
                                                                                                                    GND
                                C211                     C212                                                                                           +
                                         5.6K 
5.6K
                                                 p:
                                                                        + C209 + C210         C213                                          C208
                              100 pF                     100 pF           1.0uF  1.0uF        0.1uF                                     470uF/16V
                                                                                                                   13
                                                                                                                   18
                                                                                                                   19
                                                                                                                   20
                                                                                                                   1
                                                                                                                   2
                                                                                                                   3
                                       htt
                                                                                                   26
                                  AOC LM725
7. PCB Layout
7.1 Main Board
   715L1237-1
                              t
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                            jel
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                       27
                                   AOC LM725
7.2 POWER BOARD
  715L1103-217A
                               t
                              .ne
                             jel
                    .w
                   ww
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        p:
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                        28
                                    AOC LM725
7.3 Audio Board
   715L1144-1-IO
                                t
                               .ne
7.4 Key Board
   715L1222-4-C3
                              jel
                     .w
                    ww
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         p:
      htt
                         29
                                                            AOC LM725
 8. Maintainability
8.1 Equipments And Tools Requirement
1.   Voltmeter.
2.   Oscilloscope.
3.   Pattern Generator.
4.   DDC Tool with an IBM Compatible Computer.
5.   Alignment Tool.
6.   LCD Color Analyzer.
7.   Service Manual.
8.   User Manual.
                                                        t
                                                       .ne
                                                      jel
                                                 .w
                                     ww
                           //w
           p:
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                                                 30
                                                                                         AOC LM725
8.2 Trouble Shooting
8.2.1 Main Board
       No power
No power
                                                                         t
                                       NG
                                                              .ne
                   Please reinsert and make sure
                   the AC of 100-240 is normal
                                                                Reinsert or check the
                                                        NG
                                                         jel
                               OK                               Adapter/Inverter
                                                                section
                                              NG
                               OK                            Replace X601, X401
                             Replace U601
          p:
                               NG
       htt
Replace U401
                                                   31
                                                                                     AOC LM725
No picture (LED orange)
No picture
             The button if           NG
                                                   X601 oscillate       NG
                                                                              Replace X601
             under control                       waveform is normal
OK
OK
                                                                             t
                                               Check reset circuit of   NG   Check Correspondent
                                                                        .ne
                                               U601 is normal                component
       Measure U201 PIN2=2.5V
       U202 PIN2=3.3V                                         OK
                                                             jel
                       NG                           Replace U601
                                  Replace
                                  U201, U202
             OK
                                                   .w
            X401 oscillate
                                     ww
waveform is normal
               OK            NG
                                                 Replace X401
                             //w
                             NG                 Check Correspondent
              OK                                component
       htt
Replace U401
                                                      32
                                                                                       AOC LM725
White screen
White screen
                                   NG
       Measure Q204 base                           X601 oscillate
       is low level?                               waveform is normal
                                                   OK              NG            Replace X601
           OK
                                                                        t
                                                           .ne
     Check Q204 is broken or                      Check reset circuit of
     CN503 solder?                                U601 is normal
                                                  jel
                       NG                                      NG
                            Check Correspondent
                            component.                                     Check Correspondent
                                                                           component.
          OK                                         OK
                                           .w
         Replace PANEL                               Replace U601
                               ww
                       //w
     p:
  htt
                                             33
                                                                                                     AOC LM725
8.2.2 Power/Inverter Board
   1) No power
NG
OK NG
                                                                                     t
                                                            Check AC input
                                                                         .ne
              Check the voltage of C905 (+)
OK NG
                                                               jel
                                                            Check bridge rectified circuit and F901 circuit
OK NG 1) Check IC901
                     OK
                                               NG
                                                        Check IC901
                                                       34
                                                                                         AOC LM725
2.) No Backlight
                   OK              NG
                                                       Check adapter
                   OK
                                   NG
                                                   Check Interface board or main board
                                                                              t
                                                                    .ne
           Check U201 pin9=12V
OK
                                                         jel
                                   NG
                                                      Change Q201 or Q202
                                               .w
       Check U201 PIN10,7 have the output of sawtooth wave at short time
                   OK                NG
                                 ww
                                                      Change U201
       Check D201(-), D202(-) have the output of square wave at short time.
                        //w
                   OK
                                     NG
                                                      Check Q205, Q206, Q207, Q208, Q203, Q204
      p:
         Check the resonant wave of pin2 & pin5 for PT201, PT202
   htt
                   OK
                                    NG
                                                        Check Q209, Q210, Q211, Q212
               OK                    NG
                                                        Change PT201, PT202
                                                 35
                                                                                  AOC LM725
8.2.3 Keypad Board
                                                           N
             Is Key Pad Board connecting normally?             Connect Key Pad Board
                                                                    t
                                                           N
                                                               .ne
                     Is Button Switch normally?                Replace Button Switch
                                                           jel
                                                           N
                     Is Key Pad Board normally?                Replace Key Pad Board
                                   Y
                                                  .w
                                       ww
                         Check Main Board
                         //w
         p:
      htt
                                                      36
                                                                                                 AOC LM725
9. White- Balance, Luminance Adjustment
Approximately 30 minutes should be allowed for warm up before proceeding White-Balance adjustment.
1. How to do the Chroma-7120 MEM. Channel setting
  A. Reference to chroma 7120 user guide
  B. Use “ SC” key and “ NEXT” key to modify XyY value and use “ID” key to modify the
    TEXT description Following is the procedure to do white-balance adjust
                                                                                  t
      6500 color temp. parameter is x = 313±20, y = 329 ±20, Y =180 cd/m2
                                                                       .ne
3. Into factory mode of LM725
 Turn on power, press the MENU button, pull out the power cord, and then plug the power cord. Then the factory
 OSD will be at the left top of the panel.
                                                                jel
4. Bias adjustment:
    4. Adjust the RED of color1 on factory window until chroma 7120 indicator reached the value R=100
    5. Adjust the GREEN of color1 on factory window until chroma 7120 indicator reached the value G=100
    6. Adjust the BLUE of color1 on factory window until chroma 7120 indicator reached the value B=100
    7. Repeat above procedure (item 4,5,6) until chroma 7120 RGB value meet the tolerance =100±2
           p:
                                                        37
                                                                                     AOC LM725
10. EDID Content
  1. Analog EDID
          00       01   02   03   04   05   06   07   08   09   10   11   12   13   14   15
   0:     00   FF       FF   FF   FF   FF   FF   00   05   E3   25   A7   FF   94   0D   00
   16:    1E   0E       01   03   68   22   1B   78   2A   36   AD   A2   59   4C   97   24
   32:    17   50       56   BF   EF   00   81   80   01   01   01   01   01   01   01   01
   48:    01   01       01   01   01   01   BC   34   00   98   51   00   2A   40   10   90
   64:    13   00       54   0E   11   00   00   1E   00   00   00   FF   00   31   32   33
   80:    34   35       36   37   38   39   30   31   31   31   00   00   00   FD   00   37
                                                                          t
   96:    4B   1E       53   0E   00   0A   20   20   20   20   20   20   00   00   00   FC
                                                                .ne
   112:   00   4C       4D   37   32   35   0A   20   20   20   20   20   20   20   00   D1
2.Digital EDID
00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15
                                                      jel
   0      00   FF       FF   FF   FF   FF   FF   00   05   E3   25   A7   0B   95   0D   00
   16     09   0F       01   03   80   22   1B   78   2A   36   AD   A2   59   4C   97   24
   32     17   50       56   BF   EF   00   81   80   01   01   01   01   01   01   01   01
                                                 .w
   48     01   01       01   01   01   01   BC   34   00   98   51   00   2A   40   10   90
   64     13   00       54   0E   11   00   00   1E   00   00   00   FF   00   31   32   33
                                       ww
   80     34   35       36   37   38   39   30   31   32   33   00   00   00   FD   00   37
   96     4B   1E       53   0E   00   0A   20   20   20   20   20   20   00   00   00   FC
   112    00   4C       4D   37   32   35   0A   20   20   20   20   20   20   20   00   BD
                         //w
           p:
        htt
                                                 38
                                                                       AOC LM725
11. BOM List
   T782KSQHMCPGA
                                                            t
               15G5908 2          BRACKET                      1       PCS
                                                    .ne
               15G6090 7          MAIN FRAME                   1       PCS
               26G 800504 3       BARCODE                      1       PCS
               34G1272 72 6B      REAR COVER                   1       PCS
               40G 19061559A      ID LABEL                     1       PCS
                                                jel
               40G 58162435A      LABEL                        1       PCS
               40G 58162456A      8MS LABEL FOR CARTON         1       PCS
               41G 68615 4B
                                        .w
                                  TCO'99 CARD                  1       PCS
               41G170061571D      MANUAL                       1       PCS
               44G3231 5          EVA WASHER                   1       PCS
                                  ww
                                                   t
E750L   750LLS70EUG 4    SEC 17" AS7 PANEL         1    PCS
                                             .ne
                         S95G801830542
        33F 205 24       A2005H02-2*12P            1    PCS
        33F 303 30TD1    TD00-30H P2407P30         1    PCS
                                       jel
        33F205T 24       A2005T0B-00               24   PCS
        33F303TTD1       TD00-T                    24   PCS
        71F 100510       FERRITE CORE              1    PCS
                            .w
                         705L782KF34 32
        33G4695 1 C      CLAMP                     1    PCS
                         ww
        33G4713 AS L     KEY PAD                   1    PCS
        33G4714 1 C      POWER LENS                1    PCS
        34G1271CAS 3B    BEZEL                     1    PCS
        34G1273 72 B     STAND                     1    PCS
              //w
                           AUPC780A9
        AUPC780A9SMT     AUDIO BOARD               1    PCS
CN202   33G802414C H     2*7PIN DUAL ROW RIGHT A   1    PCS
CN204   95G8014 3503     WIRE HARNESS              1    PCS
U201    56G 616 1        TDA7496                   1    PCS
        AUPC780A9AI      AUDIO BOARD               1    PCS
C203    65G0805104 32    CHIP 0.1U 50V X7R         1    PCS
C204    65G0805474 22    CHIP 0.47UF 25V X7R 080   1    PCS
C206    65G0805474 22    CHIP 0.47UF 25V X7R 080   1    PCS
                                 40
                                                      AOC LM725
C211    65G0805101 31   CHIP 100PF 50V NPD 0805   1   PCS
C212    65G0805101 31   CHIP 100PF 50V NPD 0805   1   PCS
C213    65G0805104 32   CHIP 0.1U 50V X7R         1   PCS
R201    61L0603183      CHIP 18K OHM 1/10W        1   PCS
R203    61L0603183      CHIP 18K OHM 1/10W        1   PCS
R207    61L0603102      RST SM 0603 RC0603 1K P   1   PCS
R208    61L0603102      RST SM 0603 RC0603 1K P   1   PCS
R210    61L0603203      CHIPR 20K OHM+-5% 1/10W   1   PCS
R211    61L0603203      CHIPR 20K OHM+-5% 1/10W   1   PCS
        715L1144 1 IO   AUDIO BOARD               1   PCS
                                                  t
R212    61G 60220152T   CFR 200 OHM +-5% 1/6W     1   PCS
                                             .ne
                         CBPC782KSQAW
        AIC780KSQAW     MAIN BOARD                1   PCS
        40G 45762412B   CBPC LABEL                1   PCS
                                      jel
C202    67G215B221 4H   LOW E.S.R 220UF +-20% 2   1   PCS
C204    67G215B221 4H   LOW E.S.R 220UF +-20% 2   1   PCS
CN201   33G8027 12      WAFER 2*6P 2.0MM R/A      1   PCS
                           .w
CN301   88G 35315F H    D-SUB 15PIN               1   PCS
CN302   88G 35424F H    DV1 CONNECTOR 24PIN       1   PCS
                        ww
CN503   33G801724A H    PIN HEADER 24P 2.0mm      1   PCS
CN601   33G801714A H    PIN HEADER 2*7 R/A        1   PCS
CN602   33G8027 16      WAFER 16PIN 2.0mm DIP     1   PCS
X401    93G 22 53 J     14.31818MHZ/32PF/49US     1   PCS
              //w
                              41
                                                     AOC LM725
C307   65G0603102 32   1000PF +-10% 50V X7R      1   PCS
C308   65G0603473 32   CHIP 0.047UF 50V X7R      1   PCS
C309   65G0603473 32   CHIP 0.047UF 50V X7R      1   PCS
C310   65G0603473 32   CHIP 0.047UF 50V X7R      1   PCS
C311   65G0603330 31   CER1 0603 NP0 50V 33P P   1   PCS
C312   65G0603221 31   CER1 0603 NP0 50V 220P    1   PCS
C313   65G0603104 32   CHIP 0.1UF 50V X7R        1   PCS
C314   65G0603104 32   CHIP 0.1UF 50V X7R        1   PCS
C315   65G0603104 32   CHIP 0.1UF 50V X7R        1   PCS
C401   65G0603104 32   CHIP 0.1UF 50V X7R        1   PCS
                                                 t
C402   65G0603220 31   CER1 0603 NP0 50V 22P P   1   PCS
                                            .ne
C403   65G0603220 31   CER1 0603 NP0 50V 22P P   1   PCS
C404   65G0603104 32   CHIP 0.1UF 50V X7R        1   PCS
C406   65G0603104 32   CHIP 0.1UF 50V X7R        1   PCS
                                  jel
C407   65G0603104 32   CHIP 0.1UF 50V X7R        1   PCS
C408   65G0603104 32   CHIP 0.1UF 50V X7R        1   PCS
C409   65G0603104 32   CHIP 0.1UF 50V X7R        1   PCS
                          .w
C410   65G0603104 32   CHIP 0.1UF 50V X7R        1   PCS
C411   65G0603104 32   CHIP 0.1UF 50V X7R        1   PCS
                       ww
C412   65G0603104 32   CHIP 0.1UF 50V X7R        1   PCS
C413   65G0603104 32   CHIP 0.1UF 50V X7R        1   PCS
C415   65G0603104 32   CHIP 0.1UF 50V X7R        1   PCS
C416   65G0603104 32   CHIP 0.1UF 50V X7R        1   PCS
            //w
                            42
                                                      AOC LM725
C607    65G0603102 32   1000PF +-10% 50V X7R      1   PCS
C608    65G0603102 32   1000PF +-10% 50V X7R      1   PCS
C609    65G0603102 32   1000PF +-10% 50V X7R      1   PCS
C610    65G0603102 32   1000PF +-10% 50V X7R      1   PCS
C611    65G0805105 22   CHIP 1UF 25V X7R 0805     1   PCS
C612    65G0603104 32   CHIP 0.1UF 50V X7R        1   PCS
C613    65G0603104 32   CHIP 0.1UF 50V X7R        1   PCS
C617    65G0603101 32   100PF +-10% 50V X7R       1   PCS
C618    65G0603104 32   CHIP 0.1UF 50V X7R        1   PCS
D201    93G1004 3       SS14                      1   PCS
                                                  t
D202    93G1020 1 S     GS1D                      1   PCS
                                              .ne
D301    93G 6433P       BAV99 SOT-23              1   PCS
D302    93G 6433P       BAV99 SOT-23              1   PCS
D303    93G 6433P       BAV99 SOT-23              1   PCS
                                    jel
D304    93G 64 42 P     BAV70 SOT-23              1   PCS
D305    93G 64 42 P     BAV70 SOT-23              1   PCS
D306    93G 6433P       BAV99 SOT-23              1   PCS
                           .w
D307    93G 6433P       BAV99 SOT-23              1   PCS
D308    93G 6433P       BAV99 SOT-23              1   PCS
                        ww
D309    93G 6433P       BAV99 SOT-23              1   PCS
D310    93G 6433P       BAV99 SOT-23              1   PCS
D311    93G 6433P       BAV99 SOT-23              1   PCS
D312    93G 6433P       BAV99 SOT-23              1   PCS
             //w
                               43
                                                   AOC LM725
FB403   71G 56Z601   CHIP BEAD 600 OHM 0805    1   PCS
FB404   71G 56Z601   CHIP BEAD 600 OHM 0805    1   PCS
FB405   71G 56Z601   CHIP BEAD 600 OHM 0805    1   PCS
FB406   71G 56Z601   CHIP BEAD 600 OHM 0805    1   PCS
FB601   71G 56Z601   CHIP BEAD 600 OHM 0805    1   PCS
FB602   71G 56Z601   CHIP BEAD 600 OHM 0805    1   PCS
FB603   71G 56Z601   CHIP BEAD 600 OHM 0805    1   PCS
Q201    57G 417 4    PMBS3904/PHILIPS-SMT(04   1   PCS
Q202    57G 417 4    PMBS3904/PHILIPS-SMT(04   1   PCS
Q203    57G 763 1    A03401 SOT23 BY AOS(A1)   1   PCS
                                               t
Q204    57G 417 4    PMBS3904/PHILIPS-SMT(04   1   PCS
                                        .ne
Q601    57G 417 6    PMBS3906/PHILIPS-SMT(06   1   PCS
Q602    57G 417 6    PMBS3906/PHILIPS-SMT(06   1   PCS
R201    61L0603472   RST SM 0603 RC0603 4K7    1   PCS
                                jel
R202    61L0603103   RST SM 0603 RC0603 10K    1   PCS
R203    61L0603102   RST SM 0603 RC0603 1K P   1   PCS
R204    61L0603103   RST SM 0603 RC0603 10K    1   PCS
                        .w
R205    61L0603472   RST SM 0603 RC0603 4K7    1   PCS
R206    61L0603103   RST SM 0603 RC0603 10K    1   PCS
                     ww
R207    61L0603472   RST SM 0603 RC0603 4K7    1   PCS
R208    61L0603103   RST SM 0603 RC0603 10K    1   PCS
R209    61L0603000   RST SM 0603 JUMP MAX 0R   1   PCS
R211    61L0603103   RST SM 0603 RC0603 10K    1   PCS
             //w
                          44
                                                     AOC LM725
R315   61L0603101      RST SM 0603 RC0603 100R   1   PCS
R316   61L0603101      RST SM 0603 RC0603 100R   1   PCS
R317   61L0603103      RST SM 0603 RC0603 10K    1   PCS
R318   61L0603103      RST SM 0603 RC0603 10K    1   PCS
R319   61L0603101      RST SM 0603 RC0603 100R   1   PCS
R320   61L0603101      RST SM 0603 RC0603 100R   1   PCS
R321   61L0603103      RST SM 0603 RC0603 10K    1   PCS
R322   61L0603101      RST SM 0603 RC0603 100R   1   PCS
R323   61L0603103      RST SM 0603 RC0603 10K    1   PCS
R325   61L0603750      RST SM 0603 RC22H 75R P   1   PCS
                                                 t
R326   61L0603750      RST SM 0603 RC22H 75R P   1   PCS
                                          .ne
R327   61L0603750      RST SM 0603 RC22H 75R P   1   PCS
R402   61L0603101      RST SM 0603 RC0603 100R   1   PCS
R403   61L0603390 0F   CHIP 390 OHM 1/10W 1%     1   PCS
                                  jel
R404   61L0603103      RST SM 0603 RC0603 10K    1   PCS
R405   61L0603103      RST SM 0603 RC0603 10K    1   PCS
R406   61L0603103      RST SM 0603 RC0603 10K    1   PCS
                          .w
R407   61L0603103      RST SM 0603 RC0603 10K    1   PCS
R502   61L0603000      RST SM 0603 JUMP MAX 0R   1   PCS
                       ww
R601   61L0603103      RST SM 0603 RC0603 10K    1   PCS
R602   61L0603103      RST SM 0603 RC0603 10K    1   PCS
R604   61L0603103      RST SM 0603 RC0603 10K    1   PCS
R605   61L0603103      RST SM 0603 RC0603 10K    1   PCS
             //w
                            45
                                                          AOC LM725
R624    61L0603102       RST SM 0603 RC0603 1K P    1     PCS
R625    61L0603103       RST SM 0603 RC0603 10K     1     PCS
R626    61L0603103       RST SM 0603 RC0603 10K     1     PCS
R627    61L0603103       RST SM 0603 RC0603 10K     1     PCS
R634    61L0603101       RST SM 0603 RC0603 100R    1     PCS
R635    61L0603101       RST SM 0603 RC0603 100R    1     PCS
R636    61L0603101       RST SM 0603 RC0603 100R    1     PCS
R639    61L0603101       RST SM 0603 RC0603 100R    1     PCS
R642    61L0603000       RST SM 0603 JUMP MAX 0R    1     PCS
RN601   61L 125472 8     CHIP AR 8P4R 4.7K OHM+-    1     PCS
                                                   t
RN602   61L 125472 8     CHIP AR 8P4R 4.7K OHM+-    1     PCS
                                              .ne
U201    56G 585 7        RT9164-25PL                1     PCS
U202    56G 563 7        AIC1084-33PM               1     PCS
U301    56G1133 34       M24C02-WMN6TP              1     PCS
                                      jel
U302    56G1133 34       M24C02-WMN6TP              1     PCS
U401    56G 562 60       MST8131B-LF PQFP-128       1     PCS
U601    56G1125137SE4    W78E65 BY WINBOAD          1     PCS
                            .w
U602    56G113356A       24LC16B/SNG SOIC-8PIN      1     PCS
U603    56G 643 9        EM6353BZ2SP38-2.9+         1     PCS
                         ww
                          KEPC780KD2
        AIK780KD2        KEY BOARD                  1     PCS
CN101   33G801712A H     PIN HEADER 2*6 R/A         1     PCS
CN102   88G 30211K       PHONE JACK 5PIN            1     PCS
              //w
                              46
                                                         AOC LM725
        705L 780 57 18     D910/D912 ASS'Y           1   PCS
        705L 780 5702A     Q903 ASS'Y                1   PCS
BD901   93G 50460502       KBP206G                   1   PCS
C215    65G 3J2206ET       22PF 5% SL 3KV TDK        1   PCS
C216    65G 3J2206ET       22PF 5% SL 3KV TDK        1   PCS
C217    65G 3J2206ET       22PF 5% SL 3KV TDK        1   PCS
C218    65G 3J2206ET       22PF 5% SL 3KV TDK        1   PCS
C901    65L305M2222E3      2200PF+-20%400VAC BY TD   1   PCS
C902    65L305M2222E3      2200PF+-20%400VAC BY TD   1   PCS
C904    63G 107474 HS      0.47UF +-20% 275VAC       1   PCS
                                                     t
C905    67G305S10114H      100UF +-20% 400V          1   PCS
                                                 .ne
C906    65G 2K152 5E6921   1500 PF 10% 2KV Y5P       1   PCS
C913    65G306M4722BP      4700PF +-20% 400VAC       1   PCS
C922    67G215S102 3K      ED1000UF 16V              1   PCS
                                         jel
C925    67G215S102 3K      ED1000UF 16V              1   PCS
CN102   95G8021 12520      WIRE HARNESS              1   PCS
CN201   33G8021 2D U       3.5mm WAFER               1   PCS
                              .w
CN202   33G8021 2D U       3.5mm WAFER               1   PCS
CN203   33G8021 2D U       3.5mm WAFER               1   PCS
                         ww
CN204   33G8021 2D U       3.5mm WAFER               1   PCS
CN301   88G 30210K E       PHONE JACK 5PIN           1   PCS
CN302   33G3278 3          3P PLUG B3B-XHA/JST       1   PCS
H1      85G6113 1          SHIELD                    1   PCS
              //w
                                47
                                                     AOC LM725
C203   65G0805105 27   CHIP 1UF Y5V 0805         1   PCS
C209   65G0805105 27   CHIP 1UF Y5V 0805         1   PCS
C210   65G0805105 27   CHIP 1UF Y5V 0805         1   PCS
C211   65G0805105 27   CHIP 1UF Y5V 0805         1   PCS
C212   65G0805105 27   CHIP 1UF Y5V 0805         1   PCS
C219   65G0805105 27   CHIP 1UF Y5V 0805         1   PCS
C220   65G0805105 27   CHIP 1UF Y5V 0805         1   PCS
C224   65G0805105 27   CHIP 1UF Y5V 0805         1   PCS
C225   65G0805105 27   CHIP 1UF Y5V 0805         1   PCS
C910   65G0805104 32   CHIP 0.1U 50V X7R         1   PCS
                                                 t
C927   65G0805104 32   CHIP 0.1U 50V X7R         1   PCS
                                             .ne
D201   93G2004 3       SSM24PT                   1   PCS
D202   93G2004 3       SSM24PT                   1   PCS
D203   93G 39S 3 T     BZT52-C11                 1   PCS
                                   jel
D204   93G 39S 3 T     BZT52-C11                 1   PCS
Q201   57G 760 5A      DTC 144WN3/S SOT-23       1   PCS
Q202   57G 760 4A      DTA144WN3/S SOT-23        1   PCS
                          .w
Q203   57G 763 3B      AM9435P.T1-PF SO-8        1   PCS
Q204   57G 763 3B      AM9435P.T1-PF SO-8        1   PCS
                       ww
Q205   57G 417 4       PMBS3904/PHILIPS-SMT(04   1   PCS
Q206   57G 417 4       PMBS3904/PHILIPS-SMT(04   1   PCS
Q207   57G 417 6       PMBS3906/PHILIPS-SMT(06   1   PCS
Q208   57G 417 6       PMBS3906/PHILIPS-SMT(06   1   PCS
             //w
                             48
                                                      AOC LM725
R902    61L1206105      CHIP 1MOHM 5% 1/4W        1   PCS
R904    61L1206105      CHIP 1MOHM 5% 1/4W        1   PCS
R905    61L1206105      CHIP 1MOHM 5% 1/4W        1   PCS
R906    61L1206754      CHIP 750KOHM 5% 1/4W      1   PCS
R907    61L1206754      CHIP 750KOHM 5% 1/4W      1   PCS
R909    61L1206472      CHIP 4.7KOHM 5% 1/4W      1   PCS
R910    61L1206472      CHIP 4.7KOHM 5% 1/4W      1   PCS
R911    61L1206472      CHIP 4.7KOHM 5% 1/4W      1   PCS
R912    61L1206101      CHIP 100 OHM 5% 1/4W      1   PCS
R915    61L1206103      CHIP 10KOHM 5% 1/4W       1   PCS
                                                  t
R916    61L1206240 2F   CHIP 24KOHM1% 1/4W        1   PCS
                                              .ne
R917    61L1206100      CHIPR 10 OHM+-5% 1/4W     1   PCS
R918    61L1206103      CHIP 10KOHM 5% 1/4W       1   PCS
R924    61L0805333      CHIP 33KOHM 1% 1/8W       1   PCS
                                     jel
R925    61L0603362      CHIP 3.6K OHM 1/10W       1   PCS
R926    61L0805242      CHIP 2.4KOHM 1% 1/8W      1   PCS
R927    61L0805102      CHIPR 1K OHM +-5% 1/8W    1   PCS
                              .w
R928    61L0805102      CHIPR 1K OHM +-5% 1/8W    1   PCS
R929    61L0603000      RST SM 0603 JUMP MAX 0R   1   PCS
                        ww
R930    61L1206101      CHIP 100 OHM 5% 1/4W      1   PCS
R931    61L0603102      RST SM 0603 RC0603 1K P   1   PCS
U201    56G 622 1       BA9741F-SMT               1   PCS
ZD901   93G 39S 20 T    RLZ22B LLDS               1   PCS
              //w
                              49
                                                          AOC LM725
C908    65G 450104 7T       0.1UF +80-20% 50V Y5V     1   PCS
C909    64G700J1040AT       0.1UF 50V PEN             1   PCS
C911    64G700J1020AT       1000PF 50V PEN            1   PCS
C920    65L517K102 5T6213   1000PF 10% Y5P 500V       1   PCS
C921    65L517K102 5T6213   1000PF 10% Y5P 500V       1   PCS
C924    67G215B4713HT       470UF 16V LTR471M1CF11V   1   PCS
C926    67G215B4713HT       470UF 16V LTR471M1CF11V   1   PCS
C936    64G700J1040AT       0.1UF 50V PEN             1   PCS
D205    93G 64 1152T        1N4148                    1   PCS
D206    93G 64 1152T        1N4148                    1   PCS
                                                      t
D207    93G 64 1152T        1N4148                    1   PCS
                                                  .ne
D208    93G 64 1152T        1N4148                    1   PCS
D209    93G 64 1152T        1N4148                    1   PCS
D210    93G 64 1152T        1N4148                    1   PCS
                                         jel
D901    93G 6026T52T        RECTIFIER DIODE FR107     1   PCS
D902    93G 6038T52T        FR103                     1   PCS
D903    93G 64 1152T        1N4148                    1   PCS
                               .w
F901    84G 56 1            FUSE 2A 250V WICKMANN     1   PCS
FB901   71G 55 29           FERRITE BEAD              1   PCS
                        ww
FB902   71G 55 19 T         FERRITE BEAD D9X3. 5X0.   1   PCS
IC903   56G 158 4 T         H431BA                    1   PCS
L902    6G 31502            1.5MM RIVET               4   PCS
NR901   6G 31502            1.5MM RIVET               2   PCS
              //w
                                    50
                                                    AOC LM725
R218    61G 60210152T   100OHM +- 5% 1/6W      1    PCS
R219    61G 60210152T   100OHM +- 5% 1/6W      1    PCS
R220    61G 60215352T   15KOHM 5% 1/6W         1    PCS
R221    61G 60215352T   15KOHM 5% 1/6W         1    PCS
R222    61G 60212352T   12KOHM 5% 1/6W         1    PCS
R223    61G 60212352T   12KOHM 5% 1/6W         1    PCS
R232    61G 60210252T   CFR 1K OHM +-5% 1/6W   1    PCS
R233    61G 60210252T   CFR 1K OHM +-5% 1/6W   1    PCS
R234    61G 60291152T   CFR 910 OHM+-5% 1/6W   1    PCS
R235    61G 60291152T   CFR 910 OHM+-5% 1/6W   1    PCS
                                               t
R236    61G 60262152T   620 OHM 5% 1/6W        1    PCS
                                             .ne
R237    61G 60262152T   620 OHM 5% 1/6W        1    PCS
R238    61G 60212352T   12KOHM 5% 1/6W         1    PCS
R239    61G 60212352T   12KOHM 5% 1/6W         1    PCS
R240    61G 60251352T   51KOHM +-5% 1/6W       1    PCS
                                    jel
R241    61G 60251352T   51KOHM +-5% 1/6W       1    PCS
R243    61G 17210252T   1K OHM 5% 1/4W         1    PCS
R244    61G 17210252T   1K OHM 5% 1/4W         1    PCS
                           .w
R908    61G 17268952T   6.8OHM 5% 1/4W         1    PCS
R920    61G 20747052T   47 OHM 1/2W            1    PCS
                        ww
R922    61G 20747052T   47 OHM 1/2W            1    PCS
T901    6G 31502        1.5MM RIVET            4    PCS
ZD902   93G 39 5452T    HZ12B2-E               1    PCS
ZD903   93G 39 7752T    HZ5C1-E                1    PCS
              //w
51