Panasonic TC-L32B6
Panasonic TC-L32B6
MTNC130213CE
                                    B01 Canada: B61
LCD TV
4. Specifications.......................................................................................................13
6. Boards Layout......................................................................................................17
8. Troubleshooting guide..........................................................................................22
                                                                2
Attention: This service manual is only for service personnel to take reference with. Before servicing
please read the following points carefully.
Safety precautions
1. Instructions
Be sure to switch off the power supply before replacing or welding any components or
inserting/plugging in connection wire Anti static measures to be taken (throughout the entire production
process!):
a) Do not touch here and there by hand at will;
b) Be sure to use anti static electric iron;
c) It’s a must for the welder to wear anti static gloves.
Please refer to the detailed list before replacing components that have special safety requirements.
Do not change the specs and type at will.
                                                   3
2.11 Special care must be taken in transporting or handling it. Exquisite shock vibration may lead to
breakage of screen glass or damage to driving circuit. Therefore it must be packed in a strong case
before the transportation or handling.
2.12 For the storage make sure to put it in a place where the environment can be controlled so as to
prevent the temperature and humidity from exceeding the limits as specified in the manual. For
prolonged storage, it is necessary to house it in an anti-moisture bag and put them altogether in one
place. The ambient conditions are tabulated as follows:
2.13 Display of a fixed picture for a long time may result in appearance of picture residue on the
screen, as commonly called “ghost shadow”. The extent of the residual picture varies with the maker
of LED screen. This phenomenon doesn’t represent failure. This “ghost shadow” may remain
in the picture for a period of time (several minutes). But when operating it please avoid displaying still
picture in high brightness for a long time.
                                                  4
  2. Alignment instructions
  (1) Test equipment
      VG-859 (YPbPr, VGA, HDMI signal generator)
      FLUKE 54200(TV signal generator)
      CA310 (white balancer)
  (2) Power test
  Connect main board, power board and IR board according the wiring diagram, connect
  the power and press power key (Remote controller or Keypad) button to turn on the TV.
     a) Test the pin voltage of P802/power board , the data is shown in table1:
                                    For 32”
    Pin12              Pin13              Pin 14                   Pin15            Pin16
On:2.5V~5.25V   Normal: 2.0~5V       On:2.5V~5.25V
                                                            Duty 5%~100%             NC
Off: 0~0.5V     Abnormal :0~0.5V        Off: 0~0.5V
                                                        5
(3) Alignment flow-chart
     The alignment flow-chart is shown as fig-1
Preset ex-factory
                                                    6
(4) Adjustment instruction
At any input source then press the “←”, “EXIT” and “OK” (using RC within 1 sec) to enter factory mode
During Factory menu, if “EXIT” key is pushed, system will exit factory mode.
           Color               Cool
                       100IRE     0.2677
             x
                       50IRE      0.2684
                       100IRE     0.2655
             y
                       50IRE      0.2671
          Adjust
                            ±0.005
         Tolerance
(5) When match the spec, pressing right key in "Save" position then exit the adjustment page.
 4-2.4. Exit Factory Mode:
    After finish Gamma adjust press [EXIT] to exit factory mode.
                                                         7
(5) Items of Factory menu
When in any source, press the “Left -> Exit -> Enter” key of remote control can enter into factory mode.
During Factory menu, only “EXIT” key is pushed, system will exit factory mode.
Press up and down key can move high light item from Model Change -> Color Temp. Adjust -> Auto Gamma
Adjust -> Timer Clear -> Preset Channel -> Full Power -> ADC Calibration -> Shipping reset -> Bypass Gamma ->
UART Enable -> I2C -> Boot Loader Upgrade -> V-Com Adjust -> SG Pattern.
Push “Enter” key can enter high light item function. (Press left and right can adjust value)
Display Model version, Release Date, firmware version and released date on the bottom.
     1)Model ID
       Press up or down key can select high light item function
       Press enter or right key to enter the item.
       It's only used for FW engineer.
     2)Color Temp. Adjust
       Press up or down key can select high light item function
       Press enter or right key to enter the item.
       It's only used for PQ engineer.
     3)Auto Gamma Adjust
       Press up or down key can select high light item function
       Press enter or right key to enter the item.
       It's only used for PQ engineer.
     4)Timer Clear
       Reset the timer which records hours of LED panel burn in
       This item will have a check dialog “yes or no” to do or not.
       - Time in factory mode: Time function shall be displayed automatically. Saving the total time of system
       power on (LED turn on), and count the time automatically. The timer is continuous and saved (per 10
       minutes) forever, unless it will be reset by doing “Timer Clear”.
     5)Preset channel
       Load preset channel for production line.
     6)Full Power
       This is for power consumption testing.
       To measure the maximum power consumption of TV set, we adjust the value of following items to
       maximum.
       - Video: Contrast maximum value, Brightness maximum value, Backlight maximum value.
       - Audio: Volume maximum value, Bass default value, Treble default value.
       Press enter key to turn on Full Power and OSD stay display until press enter key to recover from Full
       Power.
                                                        8
     7)ADC Calibration
         ADC Calibration function is reserved for calibration by hand (PQ engineer only).
     8)Shipping reset
         Reset all settings of OSD menu to default value.
         Reset settings: Channel table, Model table (H/V Position, Clock, Phase), Source dependent setting
         (Contrast, Brightness etc.), Common setting (Volume, Language etc.), Parental Control (Rating,
         Password etc), Closed Caption.
      9)Bypass Gamma
         For factory test value of gamma.
      10)UART Enable
         Enable to communicate with Auto-Alignment system.
      11)I2C
         Enable to communicate with Eeprom burn-in tool.
      12)Boot Loader Upgrade
         For firmware downgrade used.
      13)V-Com Adjust
         It's reserved for BMS function.
      14)SG Pattern
         Aging is for factory burn in and PTN ID provides each pattern for tester using.
6-2 AV terminals
Input Video signal, check if the picture and sound are normal.
      MODE
                     LINE(kHz)     LINE (pixel)                                LINE (pixel) LINE (pixel) LINE (pixel)
                                                      LINE
                      FRAME           FIELD                         (MHz)        FRAME        FRAME        FRAME
                                                      FIELD
                        (Hz)          (lines)                                     (lines)      (lines)      (lines)
                                                        9
6-4 HDMI terminal
Input HDMI signal (VG859 signal generator), separately input the signals listed in table6 and check the display and
sound (32 KHz, 44.1 KHz, 48 KHz) at any situation (power on, channel switch and format convert, etc.)
                                                        10
 6-5 other functions check
 a) Check the sleep timer, picture/sound mode, OSD, stereo and analog TV Teletext, etc.
(1) Plug the USB with the firmware file named upgrade_2013_NA.pkg
(2) If system detect upgrade_2013_NA.pkg, USB upgrade message would appear automatically.
(3) Press Up key to select Yes, and then press OK key to start the upgrading.
(5) When the progress completed, please follow the instruction to remove USB and restart Power off
    then on.
                                                      11
Working principle analysis of the unit
1. NTSC signals flow:
Antenna signal will be send to tuner TDST-H021F, t h e n T u n e r w i l l b e demodulating and
output standard video signal TV-CVBS, and sound SIF signal.
TV-CVBS will send to the master control IC MT5385 to video decode, de-interlace and scaler, then
output LVDS level drive for panel display.
The sound IF (SIF) will be fed into MT5385, after demodulating, pre-amplifying, bass adjusting and
volume control, the sound signal w i l l b e t r a n s f o r m i n t o d i g i t a l I 2 S s i g n a l and sent to
digital amplifier TAS5707.
                                                         12
4. Specifications
                    13
                                                     SPD32T 32” Block Diagram
5-1 Block Diagram
EE:
A70 60Hz Models by                                          WXGA :2x10
MTK MT5835 Platform                                         Full-HD :2x20
                                                                        Panel out
                                                                                                                  R_out
                                                                                                         Audio
                                                                                                          AMP
                                                                                                        TAS5707
                                                                                                                  L_out
                         DDR3 1G-1600
                       H5TQ1G63DFR-PBC
MTK
                                                   MT5385                                                                                  Keypad
                                                                                            EEPROM 64KB
                        IF +/-                                                                 24C32
                                  CVBS/Y Pb Pr                                               Crystal
                                   & Audio R/L                                               27MHz                         IR
Enable
                                                               ARC
                                                               Buffer                                                                 IR / LED-R
                                                                                                                                        Board
                                   Y
                                   Pb
                                                       S/PDIF
                                   Pr                                                                                           USB
              Tuner
               LG                   L
              TDST-
              H021F
                                    R
                                                                                                          14
Power board:FSP
                  15
Power board:DARFON
                     16
6. Boards Layout
11
                                                  17
            SPD32T 32-inch Wiring Diagram
7-1 BLOCK
                          18
7-2 Wiring Connection
AUO panel
                 Main board to Panel                                           Main board to Speaker
                     SPD32T                                                          SPD32T
                   DC02L00700I                                                    DC02A00130I
                     280 mm                                                     L:280 & R:480 mm
    Panel side                         Main board CN1          Main board CN4                            Speaker
  FI-X30SSL-HF    LVDS cable      JWT A2006WR0-2X10P          JWT A2001WR2-4P         Color               Right
  1 VCC                 Red        1 LVDS_PWR                1 SPK_OUTL+               Red     P3 Speaker +
  2 VCC                 Red        2 LVDS_PWR                2 SPK_OUTL-              Black    P2 Speaker -
  3 VCC                 NC                                                                        Left
  4 VCC                 NC                                   3 SPK_OUTR-              Green    P5 Speaker -
  5 GND                 NC                                   4 SPK_OUTR+              White    P4 Speaker +
  6 GND                 NC
  7 GND                 NC
  8 GND                 NC                                                 Main board to IR board/ Key
  9 SELLVDS          Yellow        8 LVVDS_SEL                                       SPD32T
 10 NC                  NC                                                        DC02V04140I
 11 GND                 NC                                                  IR:450 mm & Key:750mm
 12 RX0-             Yellow       20 LVDS_D0O_N                 IR board CN1                      Main board CN3
 13 RX0+             White        19 LVDS_D0O_P              JWT A2001WR2-11P         Color     JWT A2001WR2-5P
 14 GND                 NC                                   1 VCC3V3_STB              Red      1 VCC5_0_STB
 15 RX1-                Red       18 LVDS_D1O_N              2 IRR                    White     2 IRR
 16 RX1+             White        17 LVDS_D1O_P              3 GND                    Black     3 GND
                                                        19
17 GND      Black    5 GND                4 LED_G   Orange   4 LEDG
18 RX2-     Orange   16 LVDS_D2O_N                   NC      5 LEDR
19 RX2+     White    15 LVDS_D2O_P                   NC      6 Light_S_C
20 GND      Black    6 GND                           NC      7 Light_S_D
21 RXCLK-   Brown    14 LVDS_CO_N         1 GND     Black    8 GND
22 RXCLK+   White    13 LVDS_CO_P         2 Power    Red     9 Power Key
23 GND      Black    7 GND                3 SAR0    Orange   10 SAR0
24 RX3-     Black    12 LVDS_D03_N        4 SAR1    Yellow   11 SAR1
25 RX3+     White    11 LVDS_D03_P
26 GND       NC
27 NC        NC
28 NC        NC
29 NC        NC
30 GND       NC
                                     20
Main board to Power board:
                             21
8. Trouble shooting
1. Fault clearance
Before calling your dealer or service center for assistance, check the matters below once again.
(1) Make sure you have connected LED TV to your equipment as described in the section
    “ CONNECTING LED TV”.
(2) Check cable connection. Verify that all external equipment and power cord are properly
    connected.
(3) Verify that all power is switched on.
(4) If LED TV still does not produce an image, re-start the external equipment.
(5) If the image still does not appear, unplug LED TV from the external equipment and check the
    external equipment. The problem may be with your graphics controller rather than with LED TV.
    (When you reconnect LED TV, remember to turn the external equipment and TV off before you
    power up LED TV. Power the equipment back on in order of LED TV and external equipment.)
(6) If the problem still exists, check the following chart.
                                                23
2-2 Has audio but no video out
                                           24
2-4   Has video but no audio out step 2
                                          25
9. Exploded View
                                                 12
                                                                 03
                                                      17
17
                                                                                               16
                                                                           04
                                                                      21 29 23                     26 20
                                                                                                              02
                                                                              15                                   19
                                                                                                         18
                                                                                                                        27
                                                                                                                                  13
                                                                               06
                   01                            10
                                                                                              07
                                                                               05
                        17                                  08                                                                          28
                             09
                                                           14
                                  21                       25
                                       29                                                           10
                                            04                  28                                                                      29
                                                                     24              18
                                                                               27        20
                                                                          11
                                                                                              28
                                                                                    22                                                 30
                                                                                                   29
                                                                                                                             30
      36
                                 37    31
      40
 POP label
                                  41
34
38
33
39 Type A
                44
                            35
                   45                       32
                   Type B
 42
                                 43
       10. Replacement Parts List
       Note: All parts aresupplied by PAVCA.
Safety Ref.No.        Part No.           Part Name & Description   Pcs               Remarks
          1      TZZ00000766A       PCBA IR/B                      1
          2      TZZ00000767A       FIRMWARE M/B                   1     TC-L32B6
          2      TZZ00000768A       FIRMWARE M/B                   1     TC-L32B6P
          3      TZZ00000772A       LCD MODU                       1
          4      TZZ00000780A       SPK SET(90d)(PIN90d)           2
          5      TZZ00000781A       H-CON SET                      1
          6      TZZ00000782A       H-CON SET                      1
          7      TZZ00000783A       H-CON SET                      1
          8      TZZ00000784A       H-CON SET                      1
          9      TZZ00000786A       H-CON SET                      1
          10     TZZ00000079A       MYLAR AL TAPE                  2
          11     TZZ00000844A       PWR MODU(SPD32T) 28            1
          12     TZZ00000774A       CABINET ASSY                   1
          13     TZZ00000775A       BACK COVER ASSY                1
          14     TZZ00000787A       METAL VERTICAL-L               1
          15     TZZ00000788A       METAL VERTICAL-R               1
          16     TZZ00000789A       METAL CH FRAME-A               1
          17     TZZ00000790A       LCD MTG SIDE(32B6)             6
          18     TZZ00000794A       GROND SPRING (32B6)            2
          19     TZZ00000804A       SIDE AV BRACKET(32B6)          1
          20     TZZ00000805A       CH MOUNT BOSS(32B6)            2
          21     TZZ00000806A       SPEAKER BRACKET(32B6)          4
          22     TZZ00000809A       KEY BUTTON BRACKET(32B6)       1
          23     TZZ00000078A       LOCKING CABLE TIE              1
          24     TZZ00000832A       SUPPORT(32B6)                  3
          25     TZZ00000834A       SCREW                          3
          26     TZZ00000835A       SCREW                          3
          27     TZZ00000083A       SCREW+LOCK WASHER(8)           4
          28     TZZ00000838A       SCREW(NL)                      7
          29     TZZ00000843A       TAPPING SCREW                  10
          30     TZZ00000656A       TAPPING SCREW                  6
          31     TZZ00000796A       RATING NP-TC-L32B6             1     Model Name Plate TC-L32B6
          31     TZZ00000799A       RATING NP-TC-L32B6P            1     Model Name Plate TC-L32B6P
          32     TZZ00000821A       CARTON-TC-L32B6                1     TC-L32B6
          32     TZZ00000824A       CARTON-TC-L32B6P               1     TC-L32B6P
          33     TZZ00000828A       ENERGY GUIDE-TC-L32B6          1
          34     TZZ00000831A       PE BAG FOR TV                  1
          35     TZZ00000846A       MANUAL KITS-32B6               1     TC-L32B6
          35     TZZ00000848A       MANUAL KITS-32B6P              1     TC-L32B6P
          36     TZZ00000819A       PWR CORD(S)                    1     TC-L32B6
          36     TZZ00000820A       PWR CORD(S)                    1     TC-L32B6P
          37     N2QAYB000820       REMO CTRL AA                   1
          38     TZZ00000776A       PEDESTAL ASSY                  1
          39     TZZ00000803A       STAND MOLD                     1
          40     TZZ00000811A       EPS FOAM(T-L)                  1
          41     TZZ00000812A       EPS FOAM(T-R)                  1
          42     TZZ00000813A       EPS FOAM(B-L)                  1
          43     TZZ00000814A       EPS FOAM(B-R)                  1
          44     TZZ00000842A       TAPPING SCREW                  4     Type A screw
          45     TZZ00000840A       SCREW+2WASHER(10)              4     Type B screw
                                                   28
11 Disassembly and Assembly Instructions
11.1. Base cover + stand mold
1. Lay down the unit so that the rear cover faces upward.
11.4. M-Board
1. Remove the 2 screws.
11.6. IR-Board
1. Disconnect the connectors (I1).
11.8. Panel
1. Remove the Panel.