Service Manual

ViewSonic VA721-2
Model No. VLCDS 27998-5W
17” Color TFT LCD Display

(VA721-2_SM Rev. 1a Jan. 2006)

ViewSonic“ 381 Brea Canyon Road, Walnut, California 91789 USA - (800) 888-8583
 Copyright
Copyright © 2005 by ViewSonic Corporation. All rights reserved. No part of this publication
may be reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any
language or computer language, in any form or by any m eans, electronic, mechanical, magnetic,
optical, chemical, manual or otherwise, without the prior written permission of ViewSonic
Corporation.

Disclaimer
ViewSonic makes no representations or warranties, either expressed or implied, with respect to
the contents hereof and specifically disclaims any warranty of merchantability or fitness for any
particular purpose. Further, ViewSonic reserves the right to revise this publication and to make
changes from time to time in the contents hereof without obligation of ViewSonic to notify any
person of such revision or changes.

Trademarks
Optiquest is a registered trademark of ViewSonic Corporation.
ViewSonic is a registered trademark of ViewSonic Corporation.
All other trademarks used within this document are the property of their respective owners.

Revision History

Revision SM Editing Date ECR Number Description of Changes Editor

1a 01/24/2006 Initial release Jamie Chang

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 TABLE OF CONTENTS

1. Precautions and Safety Notices 1

2. Specification 5
3. Front Panel Function Control Description 8
4. Circuit Description 14
5. Adjustment Procedure 24
6. Troubleshooting Flow Chart 47
7. Recommended Spare Parts List 49
8. Exploded Diagram and Exploded Parts List 51
9. Block Diagram 54
10. Schematic Diagrams 56
11. PCB Layout Diagrams 62

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1. Precautions and Safety Notices

1. Appropriate Operation

(1) Turn off the product before cleaning.

(2) Use only a dry soft cloth when cleaning the LCD panel surface.
(3) Use a soft cloth soaked with mild detergent to clean the display housing.
(4) Use only a high quality, safety approved AC/DC power cord.
(5) Disconnect the power plug from the AC outlet if the product will not be used for a long period of time.
(6) If smoke, abnormal noise, or strange odor is present, immediately switch the LCD display off.
(7) Do not touch the LCD panel surface with sharp or hard objects.
(8) Do not place heavy objects on the LCD display, video cable, or power cord.
(9) Do not use abrasive cleaners, waxes or solvents for your cleaning.
(10) Do not operate the product under the following conditions:
- Extremely hot, cold or humid environment.
- Areas containing excessive dust and dirt.
- Near any appliance generating a strong magnetic field.
- In direct sunlight.

2. Caution
No modification of any circuit should be attempted. Service work should only be performed after you are thoroughly familiar
with all of the following safety checks and servicing guidelines.

3. Safety Check
Care should be taken while servicing this LCD display. Because of the high voltage used in the inverter circuit, the voltage is
exposed in such areas as the associated transformer circuits.

4. LCD Module Handling Precautions

4.1 Handling Precautions

(1) Since front polarizer is easily damaged, pay attention not to scratch it.
(2) Be sure to turn off power supply when connecting or disconnecting input connector.
(3) Wipe off water drops immediately. Long contact with water may cause discoloration or spots.
(4) When the panel surface is soiled, wipe it with absorbent cotton or other soft cloth.
(5) Since the panel is made of glass, it may break or crack if dropped or bumped on hard surface.
(6) Since CMOS LSI is used in this module, take care of static electricity and ensure human earth when handling.
(7) Do not open or modify the Module Assembly.
(8) Do not press the reflector sheet at the back of the module in any direction.
(9) In the event that a Module must be put back into the packing container slot after it was taken out of the
container, do not press the center of the CCFL Reflector edge. Instead, press at the far ends of the
CFL Reflector edge softly. Otherwise the TFT Module may be damaged.
(10) At the insertion or removal of the Signal Interface Connector, be sure not to rotate or tilt the Interface
Connector of the TFT Module.

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 (11) After installation of the TFT Module into an enclosure (LCD monitor housing, for example), do not twist or
bend the TFT Module even momentarily. When designing the enclosure, it should be taken into consideration
that no bending/twisting forces may be applied to the TFT Module from outside. Otherwise the TFT Module
may be damaged.
(12) The cold cathode fluorescent lamp in the LCD contains a small amount of mercury. Please follow local
ordinances or regulations for disposal.
(13) The LCD module contains a small amount of materials having no flammability grade. The LCD module
should be supplied with power that complies with the requirements of Limited Power Source
(IEC60950 or UL1950), or an exemption should be applied for.
(14) The LCD module is designed so that the CCFL in it is supplied by a Limited Current Circuit (IEC60950
or UL1950). Do not connect the CCFL to a Hazardous Voltage Circuit.

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5. Handling Methods

Correct methods : Incorrect Methods :

Only touch the metal frame of the panel or the front If the surface of the panel is pressed by fingers, this
cover of the monitor. may cause "MURA."
Do not touch the surface of the polarizer .

Take out the monitor by grasping the cushion. If the monitor is removed by grasping the LCD
panel, that may cause "MURA."

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 Correct methods : Incorrect Methods :
Place the monitor on a clean & soft foam pad . If the monitor is placed on foreign objects,
that could scratch the surface of the panel.

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2. Specification

• General Specifications
Test Resolution & Frequency 1280 x 1024 @ 60Hz
Test Image Size Full Size
Contrast and Brightness Controls Factory Default: Contrast = 70%, Brightness =
100%

• Video Interface
Analog Input Connector DB-15 (Analog)
Video Cable Strain Relief Equal to twice the weight of the monitor for five
minutes.
Video Cable Connector DB-15 Pinout Compliant DDC 2B.
Video Signals Video RGB (Analog)
Video Impedance 75 Ohms (Analog)
Maximum PC Video Signal 950 mV with no damage to monitor
Maximum Mac Video Signal 1250 mV with no damage to monitor
Sync Signals TTL
DDC 1/2B Compliant with Revision 1.3
Video Compatibility Shall be compatible with all PC type computers,
Macintosh computers, and after market video
cards.
Resolution Compatibility 640 x 350, 640 x 480, 720 x 400 (640 x 400), 800 x
600, 832 x 624, 1024 x 768, 1280 x 720, 1280 x
1024
Exclusions Not compatible with interlaced video.

• Power Supply
Internal Power Supply Part Number: ADP-40AFB
Input Voltage Range 90 TO 264 VAC
Input Frequency Range 47.5 TO 63 HERTZ
Short Circuit Protection Output can be shorted without damage.
Over Current Protection 4.5 A typical at 12 VDC
Leakage Current 3.5mA (Max) at 254VAC / 60Hz
EFFICIENCY 70 % typical at 115VAC Full Load
Fuse Internal and not user replaceable
Power Dissipation 35 Watts (typ)
Max Input AC Current 1.2 Arms @ 90VAC, 0.8 Arms @180VAC

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 • Horizontal / Vertical Frequency
Horizontal Frequency 30 – 80 KHZ
Vertical Refresh Rate 50 –85 HZ.
Maximum Pixel Clock 135 MHz
Sync Polarity Independent of sync polarity.

Primary Presets
Primary Preset 1280 x 1024 @ 60Hz

Look up table timing

<<Analog>>
1. 640 x 350 @ 70Hz, 31.5kHz
2. 640 x 480 @ 60Hz, 31.5kHz
3. 640 x 480 @ 67Hz, 35.0kHz
4. 640 x 480 @ 75Hz, 37.5kHz
5. 640 x 480 @ 72Hz, 37.9kHz
6. 640 x 480 @ 85Hz, 43.27kHz
7. 720 x 400 @ 70Hz, 31.5kHz
8. 800 x 600 @ 56Hz, 35.1kHz
9. 800 x 600 @ 60Hz, 37.9kHz
10. 800 x 600 @ 75Hz, 46.9kHz
11. 800 x 600 @ 72Hz, 48.1kHz
12. 800 x 600 @ 85Hz, 53.7kHz
13. 832 x 624 @ 75Hz, 49.7kHz
14. 1024 x 768 @ 60Hz, 48.4kHz
15. 1024 x 768 @ 70Hz, 56.5kHz
16. 1024 x 768 @ 72Hz, 58.1kHz
17. 1024 x 768 @ 75Hz, 60.0kHz
18. 1024 x 768 @ 85Hz, 68.67kHz
19. 1280 x 1024 @ 60Hz, 63.4kHz
20. 1280 x 1024 @ 75Hz, 79.97kHz
21. 1280x720 @ 60Hz, 45kHz (HDTV)
Changing Modes
Maximum Mode Change Blank Time, for 3 seconds (Max)
image stability. Note: 1 seconds (Typ) for recognized timings
1) Excluding “Auto Adjust” time 1-2 seconds (Typ) for unrecognized timing
2) Under DOS mode (640 x 350, 720 x 400 & 640 x .
400), there is no “Auto Adjust” feature.
3) The monitor needs to do “Auto Adjust” the first
time a new mode is detected.
Mode Change Image The image shall blank while the monitor changes
modes.

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• LCD Panel
1. ID Label - The panel code “Q” for QDI / “C” for CPT, it should be shown on the lower right
side.
2. UPC Label - The panel code “Q” for QDI / “C” for CPT, it should be shown on the lower
right side
3. Main Board - The panel code “Q” for QDI / “C” for CPT, it should be shown on the main
board by F/W version sticker

Panel Characteristics:

Panel Source CPT CLAA170EA 07Q

Type TN, LVDS
Active Size 337.9 mm (H) x 270.3mm (V)
Pixel Arrangement RGB Vertical Stripe
Pixel Pitch 0.264 mm
Glass Treatment Anti Glare (Hard coating 3H)
# of Backlights 4 CCFL edge-light
Backlight Life (Hours) 30,000 (Min)
Luminance –Center Point (CT=6500K) 300 cd/m2 (Typ after 30 minute warm up)
Contrast/Brightness=Max 250 cd/m2 (Min after 30 minute warm up)
Brightness Uniformity (5 points ,the
75% min
location follows up CPT spec)
Contrast Ratio 500 :1 (Typ), 450 :1 (Min)
Color Depth Vertical) 16.2 million colors
Viewing Angle (Horizontal, typ) 140 deg @ CR>10 / 170 deg @ CR>5
Viewing Angle (Vertical, typ) 130 deg @ CR>10 / 160 deg @ CR>5
Response Time 8 ms (Typ)
10%-90% @ Ta=25°C 12 ms (Max)
Panel Defects Please see Panel Quality Specifications.

Panel Source QDI QDI17EL0709

Type TN, dual LVDS
Active Size 337.9 mm (H) x 270.3mm (V)
Pixel Arrangement RGB Vertical Stripe
Pixel Pitch 0.264 mm
Glass Treatment Anti Glare (Hard coating 3H)
# of Backlights 4 CCFL edge-light
Backlight Life (Hours) 40,000 (Min)
Luminance –Center Point (CT=6500K) 260 cd/m2 (Typ after 30 minute warm up)
Contrast/Brightness=Max 200 cd/m2 (Min after 30 minute warm up)
Brightness Uniformity (5 points ,the
80%(typ) / 75% (min)
location follows up CPT spec)
Contrast Ratio 500 :1 (Typ), 300 :1 (Min)
Color Depth Vertical) 16.2 million colors
Viewing Angle (Horizontal, typ) 140 deg @ CR>10
Viewing Angle (Vertical, typ) 125 deg @ CR>10
Response Time
8 ms (Typ)
10%-90% @ Ta=25°C
Panel Defects Please see Panel Quality Specifications.

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 Panel Source QDI QDI17EL0711
Type TN, dual LVDS
Active Size 337.9 mm (H) x 270.3mm (V)
Pixel Arrangement RGB Vertical Stripe
Pixel Pitch 0.264 mm
Glass Treatment Anti Glare (Hard coating 3H)
# of Backlights 4 CCFL edge-light
Backlight Life (Hours) 40,000 (Min)
Luminance –Center Point (CT=6500K) 270 cd/m2 (Typ after 30 minute warm up)
Contrast/Brightness=Max 220 cd/m2 (Min after 30 minute warm up)
Brightness Uniformity (5 points ,the
80%(typ) / 76% (min)
location follows up CPT spec)
Contrast Ratio 600 :1 (Typ), 400 :1 (Min)
Color Depth Vertical) 16.2 million colors
Viewing Angle (Horizontal, typ) 140 deg @ CR>10; 160 deg @ CR>5
Viewing Angle (Vertical, typ) 125 deg @ CR>10; 145 deg @ CR>5
Response Time 8 ms (Typ) Tr(2ms )+ Tf(6ms)
10%-90% @ Ta=25°C 16ms (Max)
Panel Defects Please see Panel Quality Specifications.

• Mechanical

Dimensions (Base attached unless otherwise specified)

Width 377.6 mm
Height 374.0 mm
Depth 195.6 mm
Depth (Head Only) 55.0 mm
Monitor Weight 4.1 kg / 9.0 lbs
Packaging Specification
Width 450 mm
Height 522 mm
Depth 135 mm
Gross Weight 5.2 kg (11.45 lb)
# units per Pallet 36/72 (air/sea)
20’/40’ Container Loading, Palletized 720/1728 pieces

Ergonomics
Tilt Up 20 degrees minimum
Tilt Down -5 degrees
Swivel Right 0 degrees
Swivel Left 0 degrees
Height Adjust 0 mm
Pivot 0 degrees (Clockwise)

• Environmental Conditions
Operating Temperature 0°C to +40°C
Storage Temperature -20°C to +60°C
Operating Relative Humidity 20% to 90% RH Non-Condensing
Storage Relative Humidity 5% to 90% RH Non-Condensing
Operating Altitude 0 to +3,000 meters
Storage Altitude 0 to +12,000 meters

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3. Front Panel Function Control Description

Adjusting the Screen Image

Use the buttons on the front control panel to display and adjust the OnView®
controls which display on the screen. The OnView controls are explained at the
top of the next page.

Main Menu
With OnView controls

Front Control Panel

shown below in detail

Displays the control

screen for the highlighted
control. Scrolls through menu options and
Also toggles between two adjusts the displayed control.
controls on some Power light Also a shortcut to display the
screens. Green = ON Contrast adjustment control
Also a shortcut to Auto Orange = Power Saving screen.
Image Adjust.

Displays the Main Menu Power

or exits the control screen On/Off
and saves adjustments.

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 Do the following to adjust the screen image:

1 To display the Main Menu, press button [1].

Main Menu
AUTO
SET Auto Adjust
Contrast/Brightness
Color Adjust
i Information
Image Adjust
? Setup Menu
Memory Recall

1:EXIT 2:SELECT

NOTE: All OnView menus and adjustment screens disappear automatically after about 15
seconds. This is adjustable through the OSD timeout setting in the setup menu.

2. To select a control to be adjusted, press SorTto scroll up or down in the Main Menu.
3. After the desired control is selected, press button [2]. A control screen like the one shown below
appears.

Contrast

The line at the bottom of the screen shows the

1:EXIT 2: Brightness current functions of buttons 1 and 2: Exit or select
the Brightness control.

4 To adjust the control, press the up I or down J buttons.

5 To save the adjustments and exit the menu, press button [1] twice.

The following tips may help you optimize your display:

• Adjust your computer's graphic card so that it outputs a video signal 1280 x
1024 @ 60 Hz to the LCD dislay. (Look for instructions on “changing the
refresh rate” in your graphic card's user guide.)
• If necessary, make small adjustments using H. POSITION and V. POSITION
until the screen image is completely visible. (The black border around the
edge of the screen should barely touch the illuminated “active area” of the
LCD dislay.)

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Main Menu Controls

Adjust the menu items shown below by using the up Iand down Jbuttons.

Control Explanation

Auto Image Adjust automatically sizes, centers, and fine tunes the video signal
to eliminate waviness and distortion. Press the [2] button to obtain a sharper
image.
NOTE:
Auto Image Adjust works with most common video cards. If this function
does not work on your LCD display, then lower the video refresh rate to 60
Hz and set the resolution to its pre-set value.

Contrast adjusts the difference between the image background

(black level) and the foreground (white level).
Brightness adjusts background black level of the screen image.

Color Adjust provides several color adjustment modes: preset color

temperatures and RGB which allows adjustment of red (R), green (G), and blue
B) separately. The factory setting for this product is 6500K (6500 Kelvin).

sRGB-RGB is quickly becoming the industry standard for color management,

with support being included in many of the latest applications. Enabling this
setting allows the LCD display to more accurately display colors the way they
were originally intended. Enabling the sRGB setting will cause the Contrast and
Brightness adjustments to be disabled.

9300K-Adds blue to the screen image for cooler white (used in most office
settings with fluorescent lighting).

6500K-Adds red to the screen image for warmer white and richer red.
5400K-Adds green to the screen image for a darker color.

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 Control Explanation

User Color Individual adjustments for red (R), green (G), and blue (B).
1. To select color (R, G or B) press button [2].
2. To adjust selected color, pressSorT.
3. When you are finished making all color adjustments, press
button [1] twice.

i Information displays the timing mode (video signal input) coming from the
graphics card in your computer, the LCD model number, the serial number, and
the ViewSonic website URL. See your graphic card's user guide for instructions
on changing the resolution and refresh rate (vertical frequency).
NOTE: VESA 1280 x 1024 @ 60Hz (recommended) means that the resolution
is 1280 x 1024 and the refresh rate is 60 Hertz.

Image Adjust
Image Adjust
H./V. Position
H. Size
Fine Tune
Sharpness

1:EXIT 2:SELECT

The Image Adjust controls are explained below:

H./V. Position adjusts horizontal and vertical position of the
screen image. You can toggle between Horizontal and Vertical
by pressing button [2]. Horizontal moves the screen image to
the left or to the right. Vertical moves the screen image up and
down.

H. Size (Horizontal Size) adjusts the width of the screen image.

NOTE: Vertical size is automatic with your LCD dislay.

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 Control Explanation

Fine Tune sharpens focus by aligning the illuminated text and/

or graphic characters.
NOTE: Try the Auto Adjust (see page 9) before using the Fine
Tune control.
Sharpness adjusts the clarity and focus of the screen image.

? Setup Menu displays the menu shown below.

The Setup Menu controls are explained below.

Language Select allows you to choose the language used in

the menus and control screens.

Resolution Notice advises the optimal resolution to use.

OSD Position allows you to move the on-screen display menus

OSD and control screens.

OSD Timeout sets the length of time an on-screen display

screen is displayed. For example, with a “15 second” setting, if
a control is not pushed within 15 seconds, the display screen
disappears.

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 Control Explanation
OSD Background allows you to turn the On-Screen display
OSD background on or off. This means that while making adjustments
from the OSD control screens you can also view open software
applications, or the Windows desktop.

Memory Recall returns adjustments to the original factory

settings if the display is operating in a factory Preset Timing
Mode listed in this user guide.

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4. Circuit Description

1. Outline
1.1 Buttons on the front panel: Power On/Off button, button 2 (ENTER / INPUT SELECT), up arrow
button, down arrow button, button 1 (MENU).
1.2 D-sub 15-pin connector, DVI-I connector and AC-IN jack are located on the back side of the cabinet.
1.3 OSD menu includes the following function;
Auto Image Adjust (only active under analog input)
Contrast/Brightness
Audio Adjust
Color Adjust
Information
Manual Image Adjust
Setup Menu
Memory Recall
1.4 Contrast and Brightness can be directly controlled with UP / DOWN buttons.

2. Connectors
2.1 AC inlet: CEE22 type connector

2.2 Video signal connector for analog input: 15P Mini D-Sub

CN6
10

PIN MNEMONIC SIGNAL

1
6
2
7
3
8
4
9
5

DB15HD
16 17
1 RV Red Video
2 GV Green Video
3 BV Blue Video
11

12

13

14

15

4 NC None
5 GND Ground (DDC
return)
6 RG Red GND
7 GG Green GND
8 BG Blue GND
9 +5V +5V (for DDC)
10 SG Sync GND
11 NC None
12 SDA DDC Data
13 HS Horizontal Sync
14 VS Vertical Sync
15 SCL DDC Clock

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3. ELECTRICAL SPECIFICATIONS
3.1 Standard conditions
Display Area 338x 270 mm

Video Signal 0.7Vpp

Contrast 70%

Brightness Max.

Ambient 20 +/- 5 °C

Input AC

Warming up > 30 min

Display 1280 x 1024

3.2 POWER
3.2.1 Power supply
Input voltage 100~240Vac
Power frequency 50~60Hz
Input current <1.5Arms@90Vac
Inrush current <0.75Arms@240Vac
90A(Max) at 230Vac(cold start)
Power consumption 50W(typical);40Watts(Max)
Output @0-3.0A load 12Vdc +/-5%

3.2.2 Power Management

State Power Indicator

On 45Watts Green

Standby < 1Watts Amber

Off <1Watts Off

3.3 Acceptable timing

If the timing is within following specification, this LCD display can automatically function with a certain
position.
Horizontal: Sync frequency: 30~81 kHz
Vertical: Sync frequency: 56~85Hz (1280x1024,75Hz)

3.4 Signal level and input impedance

3.4.1 Video Signal level: 0.7Vp-p Video signal.
3.4.2 Sync Signal level
H/V Separate: TTL level
3.4.3 Input impedance
Analog video input: 75 ohm
Sync input: > 1 k ohm

4. SIGNAL CABLE: Signal cable with Mini D-Sub 15P connectors at both ends. Length: 1.8 meter.

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5. EDID data

VE710s EDID(QDI panel)

Time: 09:10:39
Date: Wed Jan 19, 2005
______________________________________________________________________
VIEWSONIC CORPORATION
EDID Version # 1, Revision # 3
DDCTest For: ViewSonic VE710s
______________________________________________________________________
EDID Block 0, Bytes 0-127
128 BYTES OF EDID CODE:
0 1 2 3 4 5 6 7 8 9
________________________________________
0 | 00 FF FF FF FF FF FF 00 5A 63
10 | 18 F5 01 01 01 01 01 0F 01 03
20 | 18 22 1B 78 2E 8A 15 A3 58 49
30 | 9D 24 16 50 54 BF EF 80 81 80
40 | 81 40 71 4F 01 01 01 01 01 01
50 | 01 01 01 01 30 2A 00 98 51 00
60 | 2A 40 30 70 13 00 52 0E 11 00
70 | 00 1E 00 00 00 FF 00 41 33 33
80 | 30 35 30 31 30 30 30 30 31 0A
90 | 00 00 00 FD 00 32 4B 1E 50 0E
100 | 00 0A 20 20 20 20 20 20 00 00
110 | 00 FC 00 56 45 37 31 30 73 0A
120 | 20 20 20 20 20 20 00 8F
______________________________________________________________________
(08-09) ID Manufacturer Name = VSC
(11-10) Product ID Code = F518
(12-15) Last 5 Digits of Serial Number = Not Used
(16) Week of Manufacture = 01
(17) Year of Manufacture = 2005
(10-17) Complete Serial Number = See Descriptor Block
(18) EDID Version Number = 1
(19) EDID Revision Number = 3
(20) VIDEO INPUT DEFINITION:
Analog Signal
0.700, 0.300 (1.000 Vp-p)
Blank-to-Black Setup, Separate Syncs
(21) Maximum Horizontal Image Size = 340 mm
(22) Maximum Vertical Image Size = 270 mm
(23) Display Gamma = 2.20
(24) Power Management and Supported Feature(s):
Active Off/Very Low Power, Standard Default Color Space,
Preferred Timing Mode
Display Type = R/G/B Color
(25-34) CHROMA INFO:
Red X - 0.639 Green X - 0.287 Blue X - 0.141 White X - 0.313
Red Y - 0.344 Green Y - 0.615 Blue Y - 0.087 White Y - 0.329

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 (35) ESTABLISHED TIMING I:
720 X 400 @ 70Hz (IBM,VGA)
640 X 480 @ 60Hz (IBM,VGA)
640 X 480 @ 67Hz (Apple,Mac II)
640 X 480 @ 72Hz (VESA)
640 X 480 @ 75Hz (VESA)
800 X 600 @ 56Hz (VESA)
800 X 600 @ 60Hz (VESA)
(36) ESTABLISHED TIMING II:
800 X 600 @ 72Hz (VESA)
800 X 600 @ 75Hz (VESA)
832 X 624 @ 75Hz (Apple,Mac II)
1024 X 768 @ 60Hz (VESA)
1024 X 768 @ 70Hz (VESA)
1024 X 768 @ 75Hz (VESA)
1280 X 1024 @ 75Hz (VESA)
(37) Manufacturer's Reserved Timing:
1152 X 870 @ 75Hz (Apple,Mac II)
(38-53) Standard Timing Identification:
1280 X 1024 @60Hz
1280 X 960 @60Hz
1152 X 864 @75Hz
Not Used
Not Used
Not Used
Not Used
Not Used
______________________________________________________________________
(54-71) Detailed Timing / Descriptor Block 1:
1280x1024 Pixel Clock: 108.00 MHz
______________________________________________________________________
Horizontal Image Size: 338 mm Vertical Image Size: 270 mm
Refreshed Mode: Non-Interlaced Normal Display - No Stereo
Horizontal:
Active Time: 1280 pixels Blanking Time: 408 pixels
Sync Offset: 48 pixels Sync Pulse Width: 112 pixels
Border: 0 pixels Frequency: 63.98 KHz

Vertical:
Active Time: 1024 lines Blanking Time: 42 lines
Sync Offset: 1 lines Sync Pulse Width: 3 lines
Border: 0 lines Frequency: 60.02 Hz
Digital Separate, Horizontal Polarity (+) Vertical Polarity (+)
______________________________________________________________________
(72-89) Detailed Timing / Descriptor Block 2:

Monitor Serial Number:

A33050100001
_________________________________________________________

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 (90-107) Detailed Timing / Descriptor Block 3:

Monitor Range Limits:

Min Vertical Freq - 50 Hz
Max Vertical Freq - 75 Hz
Min Horiz. Freq - 30 KHz
Max Horiz. Freq - 80 KHz
Pixel Clock - 140 MHz
Secondary GTF - Not Supported
______________________________________________________________________
(108-125) Detailed Timing / Descriptor Block 4:

Monitor Name:
VE710s

(126) No Extension EDID Block(s)

(127) CheckSum OK

VE710b EDID(QDI panel)

Time: 09:10:09
Date: Wed Jan 19, 2005
______________________________________________________________________
VIEWSONIC CORPORATION
EDID Version # 1, Revision # 3
DDCTest For: ViewSonic VE710b
______________________________________________________________________
EDID Block 0, Bytes 0-127
128 BYTES OF EDID CODE:

0 1 2 3 4 5 6 7 8
________________________________________9
0 | 00 FF FF FF FF FF FF 00 5A 63
10 | 18 F6 01 01 01 01 01 0F 01 03
20 | 18 22 1B 78 2E 8A 15 A3 58 49
30 | 9D 24 16 50 54 BF EF 80 81 80
40 | 81 40 71 4F 01 01 01 01 01 01
50 | 01 01 01 01 30 2A 00 98 51 00
60 | 2A 40 30 70 13 00 52 0E 11 00
70 | 00 1E 00 00 00 FF 00 41 33 34
80 | 30 35 30 31 30 30 30 30 31 0A
90 | 00 00 00 FD 00 32 4B 1E 50 0E
100 | 00 0A 20 20 20 20 20 20 00 00
110 | 00 FC 00 56 45 37 31 30 62 0A
120 | 20 20 20 20 20 20 00 9E

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 (08-09) ID Manufacturer Name = VSC
(11-10) Product ID Code = F618
(12-15) Last 5 Digits of Serial Number = Not Used
(16) Week of Manufacture = 01
(17) Year of Manufacture = 2005
(10-17) Complete Serial Number= See Descriptor Block
(18) EDID Version Number = 1
(19) EDID Revision Number = 3
(20) VIDEO INPUT DEFINITION:
Analog Signal
0.700, 0.300 (1.000 Vp-p)
Blank-to-Black Setup, Separate Syncs
(21) Maximum Horizontal Image Size = 340 mm
(22) Maximum Vertical Image Size = 270 mm
(23) Display Gamma = 2.20
(24) Power Management and Supported Feature(s):
Active Off/Very Low Power, Standard Default Color Space,
Preferred Timing Mode
Display Type = R/G/B Color
(25-34) CHROMA INFO:
Red X - 0.639 Green X - 0.287 Blue X - 0.141 White X - 0.313
Red Y - 0.344 Green Y - 0.615 Blue Y - 0.087 White Y - 0.329
(35) ESTABLISHED TIMING I:
720 X 400 @ 70Hz (IBM,VGA)
640 X 480 @ 60Hz (IBM,VGA)
640 X 480 @ 67Hz (Apple,Mac II)
640 X 480 @ 72Hz (VESA)
640 X 480 @ 75Hz (VESA)
800 X 600 @ 56Hz (VESA)
800 X 600 @ 60Hz (VESA)
(36) ESTABLISHED TIMING II:
800 X 600 @ 72Hz (VESA)
800 X 600 @ 75Hz (VESA)
832 X 624 @ 75Hz (Apple,Mac II)
1024 X 768 @ 60Hz (VESA)
1024 X 768 @ 70Hz (VESA)
1024 X 768 @ 75Hz (VESA)
1280 X 1024 @ 75Hz (VESA)
(37) Manufacturer's Reserved Timing:
1152 X 870 @ 75Hz (Apple,Mac II)

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 (38-53) Standard Timing Identification:
1280 X 1024 @60Hz
1280 X 960 @60Hz
1152 X 864 @75Hz
Not Used
Not Used
Not Used
Not Used
Not Used
______________________________________________________________________
(54-71) Detailed Timing / Descriptor Block 1:
1280x1024 Pixel Clock: 108.00 MHz
______________________________________________________________________
Horizontal Image Size: 338 mm Vertical Image Size: 270 mm
Refreshed Mode: Non-Interlaced Normal Display - No Stereo
Horizontal:
Active Time: 1280 pixels Blanking Time: 408 pixels
Sync Offset: 48 pixels Sync Pulse Width: 112 pixels
Border: 0 pixels Frequency: 63.98 KHz
Vertical:
Active Time: 1024 lines Blanking Time: 42 lines
Sync Offset: 1 lines Sync Pulse Width: 3 lines
Border: 0 lines Frequency: 60.02 Hz
Digital Separate, Horizontal Polarity (+) Vertical Polarity (+)
______________________________________________________________________
(72-89) Detailed Timing / Descriptor Block 2:

Monitor Serial Number:

A34050100001
______________________________________________________________________
(90-107) Detailed Timing / Descriptor Block 3:
Monitor Range Limits:
Min Vertical Freq - 50 Hz
Max Vertical Freq - 75 Hz
Min Horiz. Freq - 30 KHz
Max Horiz. Freq - 80 KHz
Pixel Clock - 140 MHz
Secondary GTF - Not Supported
______________________________________________________________________
(108-125) Detailed Timing / Descriptor Block 4:
Monitor Name:
VE710b
(126) No Extension EDID Block(s)
(127) CheckSum OK

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6. THEORY OF OPERATION

This section describes the function of the LCD monitor per functional block.
This monitor includes MB board, power board and button board.

6.1 MB BOARD
The MB board is a two-layer, single-landed design with ground and internal planes provided. DC power from
the power board enters the board through a 6P connector. The other connector on the board is for the button board.
The VGA cable is a signal cable that carries the video, sync and DDC signals from the PC VGA adapter. This
system board consists of 4 functional areas: flat panel controller, MCU with flash ROM, and power regulators.

6.1.1 Flat panel controller: MST8111A(U3)

The heart of the system board is the Realtek MST8111A. The MST8111A is a graphics processing IC
designed for LCD monitors. It provides all key IC functions required for LCD displays. On-chip
functions include a high-speed triple-ADC, PLL, high scaling engine and OSD controller.

a) Clock Generation:
Crystal Input Clock (TCLK and XTAL). This is the input pair to an internal crystal oscillator and
corresponding logic. A 14.318 MHz crystal is recommended.

b) Analog to Digital Converter:

The MST8111A chip has three ADCs (analog-to-digital converters), one for each color (red, green and blue).
The analog RGB signals are connected to MST8111A as described below.

Pin Name Pin Number

Red + 63
Red - 62
Green + 60
Green - 59
Blue + 58
Blue - 57

c) OSD: The MST8111A has a fully programmable, high-quality OSD controller. The on-chip static
RAM (4096 words by 24 bits) stores the cell map and the cell definitions.

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 d) MTV312 Micro Controller: The MTV312 micro controller (MCU) serves as the system micro controller.
It programs the MST8111A and manages other devices in the system such as the keypad, the backlight, the
LED, the audio system and the non-volatile RAM using general purpose input/output (GPIO) pins.

Pin number Pin Name Pin Number Usage

21 P1.3 Key / Power on ,off

13 P3.4 NV_RAM (U4) SDA

14 P3.5 NV_RAM (U4) SCL

25 P1.7 Key_down

9 P6.3 Key_right

24 P1.6 Key_up

16 P6.2 Key_left

37 P4.1 Key_mute

34 P5.6 VGA connector

23 P1.5 Key_select

42 P5.3 LED_red

41 P5.4 LED_green

32 P6.6 LCD panel power1 on / off control

3 P5.0 LCD panel power2 on / off control

36 P4.0 Backlight on / off control

e) Panel Power Sequencing (VDDCTRL1, 2) (Pin 32, 3): The MTV312 has two dedicated outputs
VDDCTRL1 and 2 ( Pin32 and Pin3) to control LCD power sequencing once data and control signals
are stable.

f) Panel interface (Pin 1~25, Pin75~128) : The MTV312 driver interface is highly programmable. It supports dual bus /
dual port for SXGA drivers.

6.1.2 Power Regulator MC34063A (U6),AIC1739 (Q4): The MC34063A is a monolithic control IC
containing the primary functions required for DC to DC converters. The device consists of an internal temperature
compensated reference, a comparator, and a controlled duty cycle oscillator with an active current
sense circuit. The desired output voltage is determined by the equation, Volt = 1.25 ( 1 + R67 / R66).
In this case, the output voltage is 3.3 Volts. The AIC1563 is a low dropout positive adjustable
regulator with minimum of 1A output current capability, so it is well suited to serve as a 3.3 V or
2.5 V regulator.

6.1.3 Power Regulator MC34063A (U7): The MC34063A is a monolithic control IC containing the
primary functions required for DC to DC converters. The device consists of an internal temperature
compensated reference, a comparator, and a controlled duty cycle oscillator with an active current
sense circuit. The desired output voltage is determined by the equation, Volt = 1.25 ( 1 + R85 / R86).
In this case, the output voltage is 5.0 Volts for panel power.

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 6.2 Power (Inverter) Board
This is a specific power (inverter) board for VE710 monitor with output of 40W / 12V / 3.5A. It provides
12 VDC to drive the four cold cathode fluorescence tubes in the backlight.

6.2.1 The inverter's electrical specification is described below.

Input Rated Input Voltage 12Vdc

Input Voltage Range 11.4 ~ 12.6 Vdc
Input Current <2A

On / Off control Voltage 2~3.3 for on, 0~1 for off

Output Rated Output Strike-on Voltage 1500Vrms
Rated Output Voltage 710Vrms at 7mA
Rate Output Frequency 40~50KHz
Rated Output Current 7~8 mA

6.2.2 Power
This is a general purpose AC / DC adapter which converts 90~240 Vac to a stabilized DC voltage: 12
Volts, with a rated output current of 4.16A. The electrical specification is described below.

Rated Input Voltage 90~240 Vac, 50 / 60Hz

Operation Input Voltage 90~260 Vac, 47 ~ 63Hz
Input Current <1.5A
Inrush Current <100A@120Vac
Standby Input Voltage 12Vdc
Output Voltage Regulation +/-5%
Output Ripple & Noise 120mVp-p
Rate Output Current <3.5A
Turn-on delay <3secs

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5. Adjustment Procedure

OSD Function Menu

A. When in Analog Input Mode

1. Main Menu
Press the [1] (Menu) button to enter the Main Menu:
Press the [▲] button to highlight the previous item or the [▼] button to highlight
the next item.
Press the [1] (Menu) button to exit the Main Menu.
(1) Auto Image Adjust Page:
Press the [2] button to execute the auto image adjust function.
Press the [1] button to exit the page.

(2) Contrast/Brightness Page:

Press the [2] button to enter the contrast adjustment page.
Press the [1] button to exit the page.
1) Contrast Item
Press the [▲] button to increase the contrast.
Press the [▼] button to decrease the contrast.
Press the [2] button to enter the brightness adjustment page.
Press the [1] button to exit the page.
2) Brightness Item
Press the [▲] button to increase the brightness.
Press the [▼] button to decrease the brightness.
Press the [2] button to enter the contrast adjustment page.
Press the [1] button to exit the page.

(3) Input Select Page:

Press the [2] button to switch to digital input mode.

(4) Color Adjust Page:

Press the [2] button to enter the color adjustment page.
Press the [1] button to exit the page.
Press the [▲] button to highlight the previous item or the [▼] button to
highlight the next item.
1) sRGB Item
2) 9300K Item
3) 6500K Item
4) 5400K Item
Press the [2] button to select the currently highlighted item.
Press the [1] button to exit the currently highlighted item.
5) User Color Item
Press the [2] button to enter the user color page.
Press the [1] button to exit the page.
Red, Green, Blue Options:
Press the [2] button to cycle among the colors.
Press the [1] button to exit the page.
Press the [▲] button to increase the selected color level.
Press the [▼] button to decrease the selected color level.

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 (5) Information Page:
Press the [2] button to enter the information page.
Press the [1] button to exit the information page.

(6) Manual Image Adjust Page:

Press the [2] button to enter the manual image adjustment page.
Press the [1] button to exit the page.
Press the [▲] button to highlight the previous item or the [▼] button to
highlight the next item.
1) H./V. Position Item
Press the [2] button to enter the horizontal/vertical postion adjustment page.
Press the [1] button to exit the page.
a) Horizontal Position:
Press the [2] button to enter the vertical position adjustment page.
Press the [1] button to exit the page.
Press the [▲] button to shift the image to the right.
Press the [▼] button to shift the image to the left.

b) Vertical Position:
Press the [2] button to return to the horizontal position adjustment page.
Press the [1] button to exit the page.
Press the [▲] button to shift the image upward.
Press the [▼] button to shift the image downward.

2) Horizontal Size Item

Press the [2] button to enter the horizontal size adjustment page.
Press the [1] button to exit the page.
Press the [▲] button to make the image wider.
Press the [▼] button to make the image narrower.

3) Fine tune Item

Press the [2] button to enter the fine tuning page.
Press the [1] button to exit the page.
Press “[▲]” Button to adjust character position in one direction.
Press “[▼]“Button to adjust character position in the other direction.

4) Sharpness Item
Press the [2] button to enter the sharpness adjustment page.
Press the [1] button to exit the page.
Press “[▲]” Button to increase image sharpness.
Press “[▼]“ Button to decrease image sharpness.

(7) Setup Menu Page:

Press the [2] button to enter the setup menu page.
Press the [1] button to exit the page.
Press the [▲] button to highlight the previous item or the [▼] button to
highlight the next item.
1) Language Select Item
Press the [2] button to enter the language selection page.

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 Press the [1] button to exit the page.
Press the [▲] button to highlight the previous item or the [▼] button to
highlight the next item.
English, French… Option
Press the [2] button to select the language.
Press the [1] button to exit the page.

2) Resolution Notice Item

Press the [2] button to enter the resolution notice page.
Press the [1] button to exit the page.
Enable, Disable Option
Press the [2] button to select the highlighted option.
Press the [1] button to exit the page.
Press the [▲] button to highlight the previous option or the [▼] button
to highlight the next option.

3) OSD Position Item

Press the [2] button to enter the OSD position adjustment page.
Press the [1] button to exit the page.
a) Horizontal Position Option
Press the [2] button to enter the vertical position adjustment page.
Press the [1] button to exit the page.
Press the [▲] button to shift the menu to the right.
Press the [▼] button to shift the menu to the left.

b) Vertical Position Option:

Press the [2] button to enter the horizontal position adjustment page.
Press the [1] button to exit the page.
Press the [▲] button to shift the menu upward.
Press the [▼] button to shift the menu downward.

4) OSD Time Out Item

Press the [2] button to enter the OSD time out adjustment page.
Press the [1] button to exit the page.
Press the [▲] button to increase the OSD time out.
Press the [▼] button to decrease the OSD time out.

5) OSD Background Item

Press the [2] button to enter the OSD background selection page.
Press the [1] button to exit the page.
Enable, Disable Option
Press the [▲] button to highlight the previous option or the [▼] button
to highlight the next option.
Press the [2] button to select the highlighted option.
Press the [1] button to exit the page.

(8) Memory Recall Page

Press the [2] button to execute the memory recall function.
Press the [1] button to exit the page.

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 2. Other Menu:
This “shortcut” menu is directly accessible without bringing up the OSD.
(1) Contrast Dialog
Press the [▲] or [▼] button to enter the Contrast Dialog.
Press the [1] button to exit the Contrast Dialog.
Press the [2] button to enter the Brightness Dialog.
Press the [▲] button to increase the contrast.
Press the [▼] button to decrease the contrast.

(2) Brightness Dialog

Press the [▲] or [▼] button to enter the Brightness Dialog.
Press the [1] button to exit the Brightness Dialog.
Press the [2] button to enter the Contrast Dialog.
Press the [▲] button to increase the brightness.
Press the [▼] button to decrease the brightness.

(3) Analog/Digital Dialog

Press the [2] button to toggle between analog and digital modes.

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 3. Function test

(1) Test equipment

Color video signal and pattern generator (or PC with SXGV resolution)

(2) Test condition

Before function testing and alignment, the unit must warm up for at least 30 minutes under the
following conditions:
1. Room temperature
2. With full-white screen, RGB, black pattern
3. With cycled display modes

4. Test display modes

Item Timing Analog
1 640 x 350 @ 70Hz, 31.5kHz Yes
2 640 x 400 @ 60Hz, 31.5kHz Yes
3 640 x 400 @ 70Hz, 31.5kHz Yes
4 640 x 480 @ 50Hz, 24.7kHz Yes
5 640 x 480 @ 60Hz, 31.5kHz Yes
6 640 x 480 @ 67Hz, 35.0kHz Yes
7 640 x 480 @ 72Hz, 37.9kHz Yes
8 640 x 480 @ 75Hz, 37.5kHz Yes
9 640 x 480 @ 85Hz, 43.27kHz Yes
10 720 x 400 @ 70Hz, 31.5kHz Yes
11 800 x 600 @ 56Hz, 35.1kHz Yes
12 800 x 600 @ 60Hz, 37.9kHz Yes
13 800 x 600 @ 75Hz, 46.9kHz Yes
14 800 x 600 @ 72Hz, 48.1kHz Yes
15 800 x 600 @ 85Hz, 53.7kHz Yes
16 832 x 624 @ 75Hz, 49.7kHz Yes
17 1024 x 768 @ 60Hz, 48.4kHz Yes
18 1024 x 768 @ 70Hz, 56.5kHz Yes
19 1024 x 768 @ 72Hz, 58.1kHz Yes
20 1024 x 768 @ 75Hz, 60.0kHz Yes
21 1024 x 768 @ 85Hz, 68.67kHz Yes
22 1152 x 864 @ 75Hz, 67.5kHz Yes
23 1152 x 870 @ 75Hz, 68.7kHz Yes
24 1280 x 1024 @ 60Hz, 63.4kHz Yes
25 1280 x 1024 @ 75Hz, 79.97kHz Yes
26 1280x 720 @ 60Hz, 45kHz (HDTV) Yes

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 5. Test pattern
Item Test condition Pattern Specification Remark
1 Frequency & performance Cross-hatch pattern No noise is allowed, all colors must be clear Pattern 1
2 Monitor saturation 16-gray scale pattern 3 to 4 levels must be saturated when brightness Pattern 2
and contrast are set to 100%
3 RGB color performance RGB color Check the color temperature of Pattern 3,
RGB signal color 4, 5
4 Sub-pixel defect RGB color Check for sub-pixel defects Pattern 3,
4,5
5 Full white Full white Check the brightness and contrast ratio, Pattern 6
and check for bright pixel defects
6 Full black Full black Pattern 7
7. 5-cycle pattern 5-cycle pattern Check the BU Pattern 8
8. 1-dot pattern 1-dot pattern Check the flicker Pattern 9

Pattern 1 Pattern2

Pattern 3 Pattern4

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 Pattern 5 Pattern6

Pattern 7 Pattern 8

Pattern 9

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6. Firmware update procedure :
When examining a monitor, please check whether the firmware version is the latest. If not,
please follow the procedure below to upgrade to the latest version.

1. Equipment needed :
- VE710s/b
- PC ( Personal computer )
- LPT cable
- Fixture (LM5ISP)
- Firmware upgrade program

Print port Fixture VE710s/b

LPT cable

2. Connection :

To PC To monitor

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7. Appendix A : How to install the software for ISP :

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 1. Install ISP
1.1 User could download ISP river and PORT95NT install from Myson Century website
(www.myson.com.tw)
1.2 After extracting the ZIP file , the total files list as Fig 1.2 , and double click the file of setup.exe to install.

1.3 Press “ Next “ button to continue., see Fig 1.3

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 1.4 Keep default setting or press “ Change “ button for selecting the path that you want , and then press “ Next
“ button to continue , see Fig 1.4 .

1.5 Press “ Install “ button to continue , see Fig 1.5

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 1.6 The installer Information shows package warning , Press “ Ignore “ button to continue .see Fig 1.6 .

1.7 Installation has finished , press “ Finish “ button , see Fig 1.7 .

Fig. 1.7

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8. Appendix B : How to use software to upgrade the BIOS :

8.1. After installation, shortcuts may be found in the settings path or the program menu (default setting); see Fig 2.1.

8.2 The security file is a key to use ISP functions; press the "OK" button. See Fig 2.2.

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 8.3 The warning shown in Fig. 2.3 is used to remind the user that a CPU rate that differs from IIC protocol
may cause the ISP functions to fail; press the "OK" button.

8.4 Press “ Create Security File “ button to key in Security code . Adjusting bar to decrease speed of IIC bus , See
Fig. 2.4 .

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 8.5 Fig 2.7 shows the settings for the ISP software's security code. It requires two command numbers,
and the commands must be keyed in sequentially: 7C, 4C, 77. The command numbers and commands
must be set by the user while coding. For more details, please refer to section 6 boot code of ISP.

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 9. Use ISP to program MCU

9.1 Select MTV type first , load the binary or intel hex file that you want to program into the MCU , and select
“ AUTO” item , then press “ RUN “ button , see fig3.1
9.2 If user change the MTV type , it must load file again , or the buffer of load file will be cleared .
9.3 CRC ( cyclic redundancy check ) : the host can check CRC register ’s result instead of reading every byte in
flash . The message of Check MCU CRC OK means that the host verify OK for the progress of program .

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10. Use ISP to rea d MCU content
1 0 . 1 Only software ISP could read the MCU content , it is according to program the boot code while coding .
The limitation is used for the security of customer ’s code. Select “ Read Target “ item , and press
"button" , the MCU content will show as Fig4.1

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11. Re-entry the ISP Mode
When you couldn’t select or click “ Reset MCU “ button and enter ISP mode again , you’ll see the message as below :

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 Note :
(1) Disable the “ Enter ISP Mode ” option to avoid the error message display
(2) If you using the MTV312M64 or before MCU serials , the MCU will always in “ ISP Mode “ even
Programming fail or erase MCU that instead of select or press “ Reset MCU “

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11. Packing procedure

11.1 Paste protection film to protect the monitor (Figure.1)

11.2 Put the monitor in PE bag & seal the with tape . (Figure.2)

Figure.1 Figure.2

11.3 Put the cushion on the monitor (Figure.3)

11.4 Put the monitor into carton & put all the accessories into the carton .Then close the carton . (Figure.4)

(Figure 3) (Figure 4)
QSG Power cord

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12. Disassemble monitor

12.1 Take off the hinge caps (Figure 5)

12.2 Lay VE710s/b down & take off the screws to remove the base (Figure 6)

(Figure 5) (Figure 6)

12.3 Remove the screw cover (Figure 7)

12.4 Take of the screws (Figure 8)

Figure 7 Figure 8

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 12.5 Remove the back cover (Figure 9)
12.6 Take off the screw on the VGA cable (Figure 10)

Figure 9 Figure 10

12.7 Take off the screws on the B/B (Figure 11)

12.8 Remove the B/B from the front-bezel (Figure 12)

Figure 11 Figure 12

12.9 Tear off the AL-foil , all cables on M/B & lamp wires . (Figure 13)
12.10 Take off the screws on the PCB holder & remove the PCB holder with the boards . (Figure 14)

Figure 13 Figure 14

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12.11 Take out the screws on M/B & remove the cable between M/B & power board (Figure 15)
12.12 Remove the M/B out (Figure 16)

Figure 15 Figure 16

12.13 Put the PCB holder up-side-down & remove the screws on the power board (Figure 17)
12.14 Remove the power board (Figure 18)

Figure 17 Figure 18

12.15 Separate the bezel & panel (with BKT) & remove the cable on panel (Figure 19)
12.16 Take off the L/R BKT & remove the L/R BKT . (Figure 20)

Figure 19 Figure 20

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6. Troubleshooting Flow Chart

1. No Power

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 2. No Characters , Missing Color

3 Always show NO SIGNEL

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7. Recommended Spare Parts List
RECOMMENDED SPARE PARTS LIST (VA721-2)
ViewSonic Model Number: VLCDS27998-5W
Rev: 1b
Serial No. Prefix: PX2
Universal Panel Sources
Item Description ECR/ECN ViewSonic P/N Ref. P/N Location
Number# CPT QDI V.9 QDI V.11
1 Accessories: POWER CORD A-PC-0106-0306 DM333181S01 Power cord 1 1 1
2 Board Assembly: Power board B-SB-0221-0686 AS020126104 Power board 1 1 1
3 main board B-00003428 1SL7VCMB007 Main board 1 1
4 Button board B-CB-0206-0170 1HYJZZZVS32 Button board 1 1 1
5 Cabinets: Front bezel assy C-00004817 33L7VCFB009 front bezel ass'y 1 1 1
6 back cover assy C-BC-0302-0576 37L7VBCVS46 back cover ass'y 1 1 1
7 Stand assy C-BS-0303-0509 26L7VSAVS25 Stand ASSY 1 1 1
8 Cables: Cable ASSY L7VC Power-MB CB-00002263 DDL7VCPB101 Cable Power-MB 1 1 1
9 Cable ASSY L7VC BUTTON-MB CB-00002262 DDL7VCTH004 Cable BUTTON-MB 1 1 1
10 VGA cable CB-00000182 DDL7VCPC001 VGA cable 1 1 1
11 CABLE MB-LCD M-FC-0809-0795 DDL70LLC201 CABLE MB-LCD 1 1 1
12 Documentation: User manual + CD wizard for CPT Panel DC-00004815 HGL7VC06013 User manual 1
13 User manual + CD wizard for QDI Panel DC-00005179 HGL7VC04011 User manual 1 1
14 Electronic 17" CPT TFT LCD panel (8ms) E-00003433 AA0170EA224 LCD panel 1
15 Components: 17" QDI TFT LCD panel (V.9) E-00002216 AA17EL07055 LCD panel 1
16 17" QDI TFT LCD panel (V.11) E-00005178 AA17EL07080 LCD panel 1
17 Miscellaneous: Screw M-SCW-0824-6800 MM30060IBJ8 SCREW M3.0*6.0-I (NI) GP 7 7 7
18 Screw M-SCW-0824-6802 MM30040IBJ9 SCREW M3.0*4.0-I(NI) GP 10 10 10
19 LCD film L7VC M-MS-0808-7399 JXL7V003017 LCD FILM 1 1 1
20 8ms sticker M-00003434 HCL7V028020 8ms sticker 1 1 1
21 Screw M-SCW-0824-6797 MF40080BJ29 SCREW F4.0*8.0-B(BNI) GP 10 10 10
22 rubber plug vesa M-MS-0808-9236 GAL7V008017 rubber plug vesa 5 5 5
23 QC-PASS LABEL DC-00003444 HCL7V026017 QC-PASS LABEL 1 1 1
24 CARTON STICKER DC-00004814 HCL7V022011 CARTON STICKER 1 1 1
25 WARRANTY STICKER M-00003446 HCL7V023018 WARRANTY STICKER 1 1 1
26 ADDRESS LABEL DC-00003443 HCL7V024014 ADDRESS LABEL 1 1 1
27 Packing Material: EPE bags M-MS-0808-8981 HAL7V001012 EPE bags 1 1 1
28 Carton P-00004816 HFL7VC03013 carton 1 1 1
29 End cap (L) P-FM-0602-0840 HBL7V005019 cushion 1 1 1
30 End cap (R) P-FM-0602-0841 HBL7V006015 cushion 1 1 1

Remark 1: Above listed items are examples, supplier can expand the rows to add more necessary items.
Remark 2: All revised RSPLs with newly added items or any change made should be highlighted and correlated with the ECN/ECR approved by

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 BOM LIST (VA721-2 for "CPT")
ViewSonic Model Number: VLCDS27998-5W
Rev: 1a
Serial No. Prefix: PX2
Item ViewSonic P/N Ref. P/N Description Location Universal number# Q'ty
1 #N/A 1L7VCZCVSE3 L7VC-A LCD MONITOR (CPT,CHINA)SILVER
2 #N/A 29L7VCMB083 L7VC M/B ASSY(FOR L7VC-CL)CPT,MST8111A S 1
3 #N/A 3BL7VSS0068 L7VC M/B S/S ASSY(QDI)LVDS 1
C17,C25,C28,C30,C33,C
4 #N/A CC62204MD23 CAP ELEC 22U 25V(+-20%,105C,5*11,2000HR) 36,C49,C70 8
C17,C25,C28,C30,C33,C
5 #N/A CC622L4MD06 CAP ELEC DIP 22U 25V(+-20%,105C,5*11)LXN 36,C49,C70 8
6 #N/A CC73303MD51 CAP ELEC 330U 16V(+-20%,105C,8*11,2000HR C58,C62,C79,C90 4
7 #N/A CC733L3MD09 CAP ELEC DIP330U 16V(+-20%,105C,8*11)LXN C58,C62,C79,C90 4
8 E-L-0407-1563 DC04725K002 CHOKE COIL 47UH(2.5A,+-10%,T07473) L21,L32 2
9 M-MS-0808-9809 DFHD30MR259 CONN DIP HEADER 30P 2R MR(P2.0,H4.0) CN9 1
10 #N/A DFHD14MS264 CONN DIP HEADER 14P 2R MS(P2.0,H6.0) CN2 1
11 M-MS-0808-9810 DFHD10MR316 CONN DIP HEADER 10P 1R MR(P2.0,H4.1) CN4 1
12 #N/A DFHD08MS439 CONN DIP HEADER 8P 2R MS(P2.54,H6.0) CN6 1
13 #N/A BG611059319 CRYSTAL DIP 11.0592MHZ(+-30PPM,49/US) X2 1
14 E-X-0415-0128 BG614318D55 XTAL DIP 14.318MHZ(+-30PPM,07010-X-136-2 X1 1
15 #N/A AZL7VC0C101 L7VC-CL SW BIOS IMAGE(CPT)MST8111A N/A S 1
16 B-SB-0221-0686 AS020126104 ADP/INV ADP-40AFA, 90~264V REV1A 1
17 B-00000936 AS05B310202 ADP/INV,SLV0315A0450-1057,90~264V REV1A 1
18 B-CB-0206-0170 23L7VBB0026 L7VC BUTTON/B ASSY 1
19 #N/A 22L7VCLA026 L7VC-A LCD MODULE ASSY(CPT)SILVER 1
20 C-00004817 33L7VCFB009 L7VC-A FRONT BEZEL ASSY(SILVER) 1
21 C-BC-0302-0576 37L7VBCVS46 L7VC BACK COVER ASSY(BLACK) 1
22 M-BK-0805-0059 34L7VBAVS00 L7VC PCB BKT ASSY 1
23 E-00003433 AA0170EA224 LCD(TFT) CLAA170EA07Q(8MS) 17"SXGA 1
24 M-BK-0805-0127 FAL7V016010 LCD BKT-L-QDI L7VC(FAL7V016,REV3B) 1
25 M-BK-0805-0128 FAL7V017016 LCD BKT-R-QDI L7VC(FAL7V017,REV3B) 1
26 M-MS-0808-8984 FCL70004010 LCD MYLAR L70L-E(FCL70004,REV3A) 1
27 M-MS-0808-9248 FCL7A001014 AL FOIL L7A(FCL7A001,REV3A) GP 2
28 M-MS-0808-7302 FCL7V012016 P/B MYLAR-DOWN L7VC(FCL7V012,REV3A) 1
29 M-MS-0808-9249 JXLM7002011 FOIL LM7S(JXLM7002,REV3B) 1
30 M-SCW-0824-6797 MF40080BJ29 SCREW F4.0*8-B(BNI) GP 3
31 M-SCW-0824-6798 MM30080BBJ2 SCREW M3.0*8,B(NI) 1
32 M-SCW-0824-6799 MM35080BBW2 SCREW M3.5*8-B (NI,WASHER) 1
33 M-SCW-0824-6800 MM30060IBJ8 SCREW M3.0*6.0-I(NI) GP 7
34 M-SCW-0824-6801 MF40080PBJ6 SCREW F4.0*8-P(NI) 2
35 M-SCW-0824-6802 MM30040IBJ9 SCREW M3.0*4.0-I(NI) GP 10
36 M-CV-0830-0283 GAL7V010011 RUBBER PLUG COVER /BK L7VC(GAL7V010,R3A) 2
37 M-SCW-0824-0728 MM30050IBJ3 SCREW M3.0*5.0-I(NI) GP 2
38 M-SCW-0824-6948 MM30050FCI5 SCREW M3.0*5-F(NI,NYLOK) 2
39 M-MS-0808-9236 GAL7V008017 RUBBER PLUG VESA/BK L7VC(GAL7V008,R3B) 4
40 C-BS-0303-0509 26L7VSAVS25 L7VC STAND ASSY(BLACK) 1
41 #N/A 23L7VCCS001 L7VC-CL CHASSIS ASSY(CPT) 1
42 CB-00002263 DDL7VCPB101 CABLE ASSY L7VC POWER-MB(8P/8P,REV1A) GP 1
43 CB-00000182 DDL7VCPC001 CABLE ASSY L7VC MB-VGA(14/15P,REV1A) 1
44 CB-00002262 DDL7VCTH004 CABLE ASSY L7VC BUTTON-MB(8P/10P,REV1A) 1
45 M-FC-0809-0795 DDL70LLC201 CABLE MB-LCD(30P,120MM,LG)L70L GP 1
46 M-MS-0808-7306 EBL7V023017 HINGE CAP L7VC(EBL7V023,REV3A) 2
47 M-SCW-0824-0816 MM40100BCI2 SCREW M4*10.0-B(NI,NYLOK) 4
48 #N/A 24L7VCPK0S3 L7VC-A PACKING ASSY(CHINA)S 1
49 A-PC-0106-0306 DM333181S01 POWER CORD 3P 1.8M(CHN)Y546B300012180QD 1
50 M-MS-0808-7710 HAL7E002013 PE BAG L7E(HAL7E002,REV3C) 1
51 P-FM-0602-0840 HBL7V005019 END CAP(L) L7VC(HBL7V005,REV3B) 1
52 P-FM-0602-0841 HBL7V006015 END CAP(R) L7VC(HBL7V006,REV3B) 1
53 M-LB-0813-0747 HCL7V004013 CORE LABEL(HCL7V004,REV3A) 1
54 #N/A HCL7VC04017 ID LABEL(VA721-2) L7VC-A(HCL7VC04,REV3A) 1
55 M-LB-0813-0745 HCL7V002011 SERIAL LEBAL L7V(HCL7V002,REV3A) 1
56 M-LB-0813-0746 HCL7V003017 CARTON LEBAL(HCL7V003,REV3A) 1
57 P-00004816 HFL7VC03013 CARTON VA721-2 L7VC-A(HFL7VC03,REV3A) 1
58 DC-00004815 HGL7VC06013 QSG+CD VA721 L7VC-A(HGL7VC06,REV3A) 1
59 #N/A JXLM5003011 HANDLE LM5S(JXLM5003,REV 3B) 1
60 #N/A HFL7V009018 SPACE PLATE L7VC(HFL7V009,REV3B) 0.028
61 M-MS-0808-7399 JXL7V003017 LCD FILM L7VC(JXL7V003,REV3B) 1
62 M-LB-0813-1043 HCL70021011 HI-POT LABEL L70L(HCL70021,REV3A) 1
63 DC-00004814 HCL7V022011 CARTON STICKER L7VC(HCL7V022,REV3A) 1
64 M-00003446 HCL7V023018 WARRANTY STICKER L7VC(HCL7V023,R3A) 1
65 DC-00003443 HCL7V024014 ADDRESS LABEL L7VC(HCL7V024,REV3B) 1
66 #N/A HAL7V003015 PE BAG L7VC(HAL7V003,REV3A) 1
67 DC-00003444 HCL7V026017 QC-PASS LABEL L7VC(HCL7V026,REV3A) 1
68 M-00002264 HCL7V028010 8MS STICKER L7VC(HCL7V028,REV3A) 1
69 DC-00003445 HDL7V005011 WARRANTY CARD L7VC(HDL7V005,R3A) 1

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 BOM LIST (VA721-2 for "QDI Panel V.9")
ViewSonic Model Number: VLCDS27998-5W
Rev: 1b
Serial No. Prefix: PX2
Item ViewSonic P/N Ref. P/N Description Location Universal number# Q'ty
1 #N/A 1L7VCZXVS02 L7VC-A1 LCD MONITOR(QDI-V09/SILVER)CHN
2 #N/A 29L7VCMB0J8 L7VC M/B ASSY(QDI ,V09)MST8111A/L7VC-A1 1
3 #N/A 3BL7VSS0068 L7VC M/B S/S ASSY(QDI)LVDS 1
C17,C25,C28,C30,C33,C3
4 #N/A CC62204MD23 CAP EC 22U 25V(+-20%,105C,5*11,2KHR)GP 8
6,C49,C70
C17,C25,C28,C30,C33,C3
5 #N/A CC622L4MD06 CAP ELEC 22U 25V(+-20%,105C,5*11)LXNGP 8
6,C49,C70
6 #N/A CC73303MD51 CAP EC 330U 16V(+-20%,105C,8*11,2KH)GP C58,C62,C79,C90 4
7 #N/A CC733L3MD09 CAP ELEC DIP330U 16V(+-20%,105C,8*11)LXN C58,C62,C79,C90 4
8 E-L-0407-1563 DC04725K002 CHOKE COIL 47UH(2.5A,+-10%,T07473) L21,L32 2
9 M-MS-0808-9809 DFHD30MR259 CONN DIP HEADER 30P 2R MR(P2.0,H4.0) CN9 1
10 #N/A DFHD14MS264 CONN DIP HEADER 14P 2R MS(P2.0,H6.0) CN2 1
11 M-MS-0808-9810 DFHD10MR316 CONN DIP HEADER 10P 1R MR(P2.0,H4.1) CN4 1
12 #N/A DFHD08MS439 CONN DIP HEADER 8P 2R MS(P2.54,H6.0) CN6 1
13 #N/A BG611059319 CRYSTAL DIP 11.0592MHZ(+-30PPM,49/US) X2 1
14 E-X-0415-0128 BG614318D55 XTAL DIP 14.318MHZ(+-30PPM,07010-X-136-2 X1 1
15 #N/A AZL7VCBQ004 L7VC-A1 SW BIOS IMAGE(QDI,R09)8111A N/A 1
16 B-SB-0221-0686 AS020126104 ADP/INV ADP-40AFA, 90~264V REV1A 1
17 B-00000936 AS05B310202 ADP/INV,SLV0315A0450-1057,90~264V REV1A 1
18 B-CB-0206-0170 23L7VBB0026 L7VC BUTTON/B ASSY 1
19 #N/A DFHD08MR301 CONN DIP HEADER 8P 1R MR(P2.0,H4.1) CN1 1
20 #N/A BEYG0013DA3 LED(DIP) YELLOW/GREEN(L-3WYGW) LED1 1
21 #N/A DAL7VCTB1C5 PCB(BUTTON) L7VC TL(1L,125*23,REVC) 1
22 #N/A DHP0002B205 SWITCH PUCH BUTTON(PT-002-B2,50MA,12V)GP 5
SW1,SW2,SW3,SW4,SW5
23 #N/A 22L7VCLA051 L7VC-A1 LCD MODULE ASSY(QDI)SILVER 1
24 C-00004817 33L7VCFB009 L7VC-A FRONT BEZEL ASSY(SILVER) 1
25 C-BC-0302-0576 37L7VBCVS46 L7VC BACK COVER ASSY(BLACK) 1
26 M-BK-0805-0059 34L7VBAVS00 L7VC PCB BKT ASSY 1
27 E-00002216 AA17EL07055 LCD(TFT) 17" QD17EL07 REV:09 1
28 M-BK-0805-0127 FAL7V016010 LCD BKT-L-QDI L7VC(FAL7V016,REV3B)GP 1
29 M-BK-0805-0128 FAL7V017016 LCD BKT-R-QDI L7VC(FAL7V017,REV3B)GP 1
30 M-MS-0808-8984 FCL70004010 LCD MYLAR L70L-E(FCL70004,REV3A)GP 1
31 M-MS-0808-9248 FCL7A001014 AL FOIL L7A(FCL7A001,REV3A) GP 2
32 M-MS-0808-7302 FCL7V012016 P/B MYLAR-DOWN L7VC(FCL7V012,REV3A)GP 1
33 M-MS-0808-9249 JXLM7002011 FOIL LM7S(JXLM7002,REV3B)GP 1
34 M-SCW-0824-6797 MF40080BJ29 SCREW F4.0*8-B(BNI) GP 3
35 M-SCW-0824-6798 MM30080BBJ2 SCREW M3.0*8,B(NI)GP 1
36 M-SCW-0824-6799 MM35080BBW2 SCREW M3.5*8-B (NI,WASHER)GP 1
37 M-SCW-0824-6800 MM30060IBJ8 SCREW M3.0*6.0-I(NI) GP 7
38 M-SCW-0824-6801 MF40080PBJ6 SCREW F4.0*8-P(NI)GP 2
39 M-SCW-0824-6802 MM30040IBJ9 SCREW M3.0*4.0-I(NI) GP 10
40 M-CV-0830-0283 GAL7V010011 RUBBER PLUG COVER /BK L7VC(R3A)GP 2
41 M-SCW-0824-0728 MM30050IBJ3 SCREW M3.0*5.0-I(NI) GP 2
42 M-SCW-0824-6948 MM30050FCI5 SCREW M3.0*5-F(NI,NYLOK)GP 2
RUBBER PLUG VESA/BK
43 M-MS-0808-9236 GAL7V008017 4
L7VC(GAL7V008,R3B)GP
44 #N/A FCL7C003014 PANEL MYLAR UP L7C(FCL7C003,REV3A)GP 1
45 C-BS-0303-0509 26L7VSAVS25 L7VC STAND ASSY(BLACK) 1
46 C-BS-0303-0563 EAL7V014025 BASE(BLACK) L7VC(EAL7V014,REV3A) 1
47 M-MS-0808-7304 FBL7V035015 BASE PLATE L7VC(FBL7V035,REV3A)GP 1
48 M-MS-0808-9251 GAL5V002013 RUBBER FOOT L5VC(GAL5V002,REV3A) GP 4
49 M-MS-0808-7305 GAL7V007011 RUBBER FOOT-FRONT L7VC(GAL7V007,R3A) 1
50 M-SCW-0824-6797 MF40080BJ29 SCREW F4.0*8-B(BNI) GP 5
51 M-LB-0813-1055 HCL7V020019 STAND LABEL L7VC(HCL7V020,REV3A)GP 1
52 #N/A 23L7VCSVS87 L7VC-Q CHASSIS ASSY(QDI) 1
53 CB-00002263 DDL7VCPB101 CABLE ASSY L7VC POWER-MB(8P/8P,REV1A) GP 1
54 CB-00000182 DDL7VCPC001 CABLE ASSY L7VC MB-VGA(14/15P,REV1A) GP 1
55 CB-00002262 DDL7VCTH004 CABLE L7VC BUTTON-MB(8P/10P,REV1A) GP 1
56 CB-00002261 DDL7VXLC004 CABLE MB-LCD(100MM,30P)L7VX GP 1
57 #N/A DDL9ZALC005 CABLE MB-LCD(30P,100MM,LINKTEC)L9ZA GP 1
58 M-MS-0808-7306 EBL7V023017 HINGE CAP L7VC(EBL7V023,REV3A)GP 2
59 M-SCW-0824-0816 MM40100BCI2 SCREW M4*10.0-B(NI,NYLOK)GP 4
60 #N/A 24L7VCPK0T1 L7VC-A1 PACKING ASSY(CHINA) 1
61 A-PC-0106-0306 DM333181S01 POWER 3P 1.8M(CHN)Y546B300012180QD GP 1
62 M-MS-0808-8981 HAL7V001012 EPE BAG L7V(HAL7V001,REV3A)GP 1
63 P-FM-0602-0840 HBL7V005019 END CAP(L) L7VC(HBL7V005,REV3B)GP 1
64 P-FM-0602-0841 HBL7V006015 END CAP(R) L7VC(HBL7V006,REV3B)GP 1

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Item ViewSonic P/N Ref. P/N Description Location Universal number# Q'ty
65 M-LB-0813-0747 HCL7V004013 CORE LABEL(HCL7V004,REV3A)GP 1
66 #N/A HCL7VC04017 IDLABEL(VA721-2)L7VC-A(HCL7VC04,REV3A)GP 1
67 M-LB-0813-0745 HCL7V002011 SERIAL LEBAL L7V(HCL7V002,REV3A) GP 1
68 M-LB-0813-0746 HCL7V003017 CARTON LEBAL(HCL7V003,REV3A)GP 1
69 P-00004816 HFL7VC03013 CARTON VA721-2 L7VC-A(HFL7VC03,REV3A)GP 1
70 DC-00005179 HGL7VC04011 QSG+CD VA721(Q) L7VC-A1(REV3A)GP 1
71 #N/A JXLM5003011 HANDLE LM5S(JXLM5003,REV 3B) GP 1
72 #N/A HFL7V009018 SPACE PLATE L7VC(HFL7V009,REV3B)GP 0.028
73 M-MS-0808-7399 JXL7V003017 LCD FILM L7VC(JXL7V003,REV3B)GP 1
74 M-LB-0813-1043 HCL70021011 HI-POT LABEL L70L(HCL70021,REV3A)GP 1
75 DC-00004814 HCL7V022011 CARTON STICKER L7VC(HCL7V022,REV3A)GP 1
76 M-00003446 HCL7V023018 WARRANTY STICKER L7VC(HCL7V023,R3A)GP 1
77 DC-00003443 HCL7V024014 ADDRESS LABEL L7VC(HCL7V024,REV3B) 1
78 #N/A HAL7V003015 PE BAG L7VC(HAL7V003,REV3A)GP 1
79 DC-00003444 HCL7V026017 QC-PASS LABEL L7VC(HCL7V026,REV3A)GP 1
80 M-00002264 HCL7V028010 8MS STICKER L7VC(HCL7V028,REV3A)GP 1
VSCN WARRANTY CARD
81 #N/A HDW0VA01011 1
W0VA(HDW0VA01,R3A) GP

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 BOM LIST (VA721-2 for "QDI Panel V.11")
ViewSonic Model Number: VLCDS27998-5W
Rev: 1b
Serial No. Prefix: PX2
Item ViewSonic P/N Ref. P/N Description Location Universal number# Q'ty
1 #N/A 1L7VCZXVS11 L7VC-A1 LCD MTR(SILVER)CHN GP
2 #N/A 21L7VCMB001 L7VC M/B ASSY(MST8111A) GP 1
3 #N/A 31L7VCSS014 L7VC M/B S/S ASSY(MST8111A) GP 1
C17,C25,C28,C30,C33,C36,C
4 #N/A CC62204MD23 CAP EC 22U 25V(+-20%,105C,5*11,2KHR)GP 49,C70 8
C17,C25,C28,C30,C33,C36,C
5 #N/A CC622L4MD06 CAP ELEC 22U 25V(+-20%,105C,5*11)LXNGP 49,C70 8
6 #N/A CC73303MD51 CAP EC 330U 16V(+-20%,105C,8*11,2KH)GP C58,C62,C79,C90 4
7 #N/A CC733L3MD17 CAP EC DIP 330U16V(+-20%,105C,8*11)LXNGP C58,C62,C79,C90 4
8 #N/A DC04725K011 CHOKE COIL 47UH(2.5A,+-10%,T07473 GP) GP L21,L32 2
9 #N/A DFHD30MR267 CONN DIP HEADER 30P 2R MR(P2.0,H4.0) GP CN9 1
10 #N/A DFHD14MS272 CONN DIP HEADER 14P 2R MS(P2.0,H6.0) GP CN2 1
11 #N/A DFHD10MR324 CONN DIP HEADER 10P 1R MR(P2.0,H4.1) GP CN4 1
12 #N/A DFHD08MS013 CONN DIP HEADER 8P 2R MS(P2.54,H6.0) GP CN6 1
13 #N/A BG611059327 XTAL DIP 11.0592MHZ(+-30PPM,49/S) GP X2 1
14 #N/A BG614318072 XTAL DIP 14.318MHZ(+-30PPM,49/S) GP X1 1
15 B-SB-0221-0686 AS020126104 ADP/INV ADP-40AFA, 90~264V REV1A 1
16 B-00000936 AS05B310202 ADP/INV,SLV0315A0450-1057,90~264V REV1A 1
17 #N/A 23L7VCBB007 L7VC BUTTON/B ASSY GP 1
18 #N/A DFHD08MR319 CONN DIP HEADER 8P 1R MR(P2.0,H4.1) GP CN1 1
19 #N/A BEYG0001DA5 LED(DIP) YELLOW/GREEN(L-688WYGW) GP LED1 1
20 #N/A DAL7VCTB135 PCB(BUTTON) L7VC TL(1L,125*23,REVC) GP 1

21 #N/A DHP0002B205 SWITCH PUCH BUTTON(PT-002-B2,50MA,12V)GP SW1,SW2,SW3,SW4,SW5 5

22 #N/A 24L7VCLB008 L7VC-A1 LCD BEZEL ASSY GP 1
23 C-00004817 33L7VCFB009 L7VC-A FRONT BEZEL ASSY(SILVER) 1
24 C-BC-0302-0576 37L7VBCVS46 L7VC BACK COVER ASSY(BLACK) 1
25 M-BK-0805-0059 34L7VBAVS00 L7VC PCB BKT ASSY 1
26 M-BK-0805-0127 FAL7V016010 LCD BKT-L-QDI L7VC(FAL7V016,REV3B)GP 1
27 M-BK-0805-0128 FAL7V017016 LCD BKT-R-QDI L7VC(FAL7V017,REV3B)GP 1
28 M-MS-0808-8984 FCL70004010 LCD MYLAR L70L-E(FCL70004,REV3A)GP 1
29 M-MS-0808-9248 FCL7A001014 AL FOIL L7A(FCL7A001,REV3A) GP 2
30 M-MS-0808-7302 FCL7V012016 P/B MYLAR-DOWN L7VC(FCL7V012,REV3A)GP 1
31 M-MS-0808-9249 JXLM7002011 FOIL LM7S(JXLM7002,REV3B)GP 1
32 M-SCW-0824-6797 MF40080BJ29 SCREW F4.0*8-B(BNI) GP 3
33 M-SCW-0824-6798 MM30080BBJ2 SCREW M3.0*8,B(NI)GP 1
34 M-SCW-0824-6799 MM35080BBW2 SCREW M3.5*8-B (NI,WASHER)GP 1
35 M-SCW-0824-6800 MM30060IBJ8 SCREW M3.0*6.0-I(NI) GP 7
36 M-SCW-0824-6801 MF40080PBJ6 SCREW F4.0*8-P(NI)GP 2
37 M-SCW-0824-6802 MM30040IBJ9 SCREW M3.0*4.0-I(NI) GP 10
38 M-CV-0830-0283 GAL7V010011 RUBBER PLUG COVER /BK L7VC(R3A)GP 2
39 M-SCW-0824-0728 MM30050IBJ3 SCREW M3.0*5.0-I(NI) GP 2
40 M-SCW-0824-6948 MM30050FCI5 SCREW M3.0*5-F(NI,NYLOK)GP 2
RUBBER PLUG VESA/BK
41 M-MS-0808-9236 GAL7V008017 L7VC(GAL7V008,R3B)GP 4
42 #N/A FCL7C003014 PANEL MYLAR UP L7C(FCL7C003,REV3A)GP 1
43 C-BS-0303-0509 26L7VSAVS25 L7VC STAND ASSY(BLACK) 1
44 C-BS-0303-0563 EAL7V014025 BASE(BLACK) L7VC(EAL7V014,REV3A) 1
45 M-MS-0808-7304 FBL7V035015 BASE PLATE L7VC(FBL7V035,REV3A)GP 1
46 M-MS-0808-9251 GAL5V002013 RUBBER FOOT L5VC(GAL5V002,REV3A) GP 4
47 M-MS-0808-7305 GAL7V007011 RUBBER FOOT-FRONT L7VC(GAL7V007,R3A) 1
48 M-SCW-0824-6797 MF40080BJ29 SCREW F4.0*8-B(BNI) GP 5
49 M-LB-0813-1055 HCL7V020019 STAND LABEL L7VC(HCL7V020,REV3A)GP 1
50 #N/A 23L7VCSVS87 L7VC-Q CHASSIS ASSY(QDI) 1
CABLE ASSY L7VC POWER-MB(8P/8P,REV1A)
51 CB-00002263 DDL7VCPB101 GP 1
52 CB-00000182 DDL7VCPC001 CABLE ASSY L7VC MB-VGA(14/15P,REV1A) GP 1
53 CB-00002262 DDL7VCTH004 CABLE L7VC BUTTON-MB(8P/10P,REV1A) GP 1
54 CB-00002261 DDL7VXLC004 CABLE MB-LCD(100MM,30P)L7VX GP 1

55 #N/A DDL9ZALC005 CABLE MB-LCD(30P,100MM,LINKTEC)L9ZA GP 1

56 M-MS-0808-7306 EBL7V023017 HINGE CAP L7VC(EBL7V023,REV3A)GP 2
57 M-SCW-0824-0816 MM40100BCI2 SCREW M4*10.0-B(NI,NYLOK)GP 4
58 #N/A 24L7VCPK0T1 L7VC-A1 PACKING ASSY(CHINA) 1
59 A-PC-0106-0306 DM333181S01 POWER 3P 1.8M(CHN)Y546B300012180QD GP 1
60 M-MS-0808-8981 HAL7V001012 EPE BAG L7V(HAL7V001,REV3A)GP 1
61 P-FM-0602-0840 HBL7V005019 END CAP(L) L7VC(HBL7V005,REV3B)GP 1
62 P-FM-0602-0841 HBL7V006015 END CAP(R) L7VC(HBL7V006,REV3B)GP 1
63 M-LB-0813-0747 HCL7V004013 CORE LABEL(HCL7V004,REV3A)GP 1

ViewSonic Corporation Confidential - Do Not Copy VA721-2

54
Item ViewSonic P/N Ref. P/N Description Location Universal number# Q'ty

64 #N/A HCL7VC04017 IDLABEL(VA721-2)L7VC-A(HCL7VC04,REV3A)GP 1

65 M-LB-0813-0745 HCL7V002011 SERIAL LEBAL L7V(HCL7V002,REV3A) GP 1
66 M-LB-0813-0746 HCL7V003017 CARTON LEBAL(HCL7V003,REV3A)GP 1
CARTON VA721-2 L7VC-A(HFL7VC03,REV3A)GP
67 P-00004816 HFL7VC03013 1
68 DC-00005179 HGL7VC04011 QSG+CD VA721(Q) L7VC-A1(REV3A)GP 1
69 #N/A JXLM5003011 HANDLE LM5S(JXLM5003,REV 3B) GP 1
70 #N/A HFL7V009018 SPACE PLATE L7VC(HFL7V009,REV3B)GP 0.028
71 M-MS-0808-7399 JXL7V003017 LCD FILM L7VC(JXL7V003,REV3B)GP 1
72 M-LB-0813-1043 HCL70021011 HI-POT LABEL L70L(HCL70021,REV3A)GP 1
73 DC-00004814 HCL7V022011 CARTON STICKER L7VC(HCL7V022,REV3A)GP 1
74 M-00003446 HCL7V023018 WARRANTY STICKER L7VC(HCL7V023,R3A)GP 1
75 DC-00003443 HCL7V024014 ADDRESS LABEL L7VC(HCL7V024,REV3B) 1
76 #N/A HAL7V003015 PE BAG L7VC(HAL7V003,REV3A)GP 1
77 DC-00003444 HCL7V026017 QC-PASS LABEL L7VC(HCL7V026,REV3A)GP 1
78 M-00002264 HCL7V028010 8MS STICKER L7VC(HCL7V028,REV3A)GP 1
VSCN WARRANTY CARD
79 #N/A HDW0VA01011 W0VA(HDW0VA01,R3A) GP 1
80 #N/A 2AL7VCPTQ00 L7VC-A1 PANEL DEPENDENT KIT(QDI)8MS GP 1
81 #N/A AA17EL07080 LCD(TFT)17" QD17EL07 REV:11(8MS)SXGA GP 1
82 #N/A AZL7VCBQ012 L7VC-A1 SW BIOS IMAGE(MST8111A)QDI 1

ViewSonic Corporation Confidential - Do Not Copy VA721-2

55
8. Exploded Diagram And Spare Parts List

ViewSonic Corporation Confidential - Do Not Copy VA721-2

56
 EXPLODED PARTS LIST (VA721-2 for "CPT")
ViewSonic Model Number: VLCDS27998-5W
Rev: 1a
Serial No. Prefix: PX2
Item ViewSonic P/N Ref. P/N Description Q'ty
1 #N/A 29L7VCMB083 L7VC M/B ASSY 1
2 B-SB-0221-0686 AS020126104 ADP/INV ADP-40AFB, 90-264VAC 1
3 B-CB-0206-0170 23L7VBB0026 L&VC BUTTON/B ASSY 1
4 #N/A EAL7V012031 LCD BEZEL SILVER L7VC 1
5 M-MS-0808-9242 EBL7V021014 LENS L7VC 1
6 PL-BT-0706-0179 EBL7V022011 CONTROL BUTTON L7VC 1
7 M-MS-0808-9243 FEL7V003019 LOGO FRONT-VSC-38MM L7VC 1
8 M-MS-0808-9244 FEL7V004015 BIRD LOGO-10MM L7VC 1
9 M-CV-0830-2618 EAL7V013029 LCD COVER(BLACK) L7VC 1
10 M-CV-0830-2484 FBL7V007011 KENSINGTON CAP 1
11 M-CV-0830-2617 FBL7V034019 HINGE ASSY L7VC 1
12 M-BK-0805-0125 FBL7V036011 VESA BKT-LONG L7VC 1
13 #N/A EBL5VC01011 VSC elipse logo plate polish 1
14 M-MS-0808-9237 GAL7V006014 RUBBER PLUG VESA/BK L7VC 4
15 M-MS-0808-9246 GBLM7003017 GASKET-3 LM7S 1
16 M-SCW-0824-6797 MF40080BJ29 SCREW F4.0*8-B (BNI) 15
17 M-BK-0805-0126 FAL7V011018 PCB BRACKET L7VC 1
18 M-MS-0808-7301 FCL7V011010 P/B MYLAR-UP L7VC 1
19 M-MS-0808-9247 EBL70023013 WIRE MOUNT L70L-E 1
20 M-LB-0813-0894 HCL7V005010 WARNING LABEL INVETER 1
21 E-00003433 AA0170EA224 LCD(TFT) CPT CLAA170EA07Q 1
22 M-BK-0805-0127 FAL7V016010 LCD BKT-L L7VC 1
23 M-BK-0805-0128 FAL7V017016 LCD BKT-R L7VC 1
24 M-MS-0808-9248 FCL7A001014 AL FOIL L7A 2
25 M-MS-0808-7302 FCL7V012016 P/B MYLAR-DOWN L7VC 1
26 M-MS-0808-9249 JXLM7002011 FOIL LM7S 1
27 M-SCW-0824-6798 MM30080BBJ2 SCREW M3.0*8-B (NI) 1
28 M-SCW-0824-6799 MM35080BBW2 SCREW M3.5*8-B (NI , WASHER) 1
29 M-SCW-0824-6800 MM30060IBJ8 SCREW M3.0*6.0-I(NI) 11
30 HW-00002361 MM40080PBJ6 SCREW F4.0*8-P(NI) 2
31 M-SCW-0824-6802 MM30040IBJ9 SCREW M3.0*4.0-I(NI) 10
32 M-CV-0830-0284 GAL7V009013 RUBBER PLUG COVER/BK L7VC 2
33 C-BS-0303-0562 EAL7V014017 BASE(BLACK) L7VC 1
34 M-MS-0808-7304 FBL7V035015 BASE PLATE L7VC 1
35 M-MS-0808-9251 GAL5V002013 RUBBER FOOT L5VC 4
36 M-MS-0808-7305 GAL7V007011 RUBBER FOOT FRONT L7VC 1
37 M-LB-0813-1055 HCL7V020019 STAND LABEL L7VC 1
38 CB-00002263 DDL7VCPB101 CABLE ASSY L7VC POWER-MB 1
39 CB-00000182 DDL7VCPC001 CABLE ASSY L7VC MB-VGA 1
40 CB-00002262 DDL7VCTH004 CABLE ASSY L7VC BUTTON-MB 1
41 M-FC-0809-0795 DDL70LLC201 CABLE MB-LCD(30P, 120MM, LG) 1
42 M-MS-0808-7306 EBL7V023017 HINGE CAP L7VC 2
43 M-SCW-0824-0816 MM40100BCI2 SCREW M4*10.0-B(NI,NYLOCK) 4
44 #N/A HCL7VC03011 ID LABEL L7VC 1
45 M-LB-0813-0745 HCL7V002011 SERIAL LABEL 1
46 M-MS-0808-7399 JXL7V003017 LCD FILM L7VC 1

ViewSonic Corporation Confidential - Do Not Copy VA721-2

57
 EXPLODED PARTS LIST (VA721-2 for "QDI Panel V.9")
ViewSonic Model Number: VLCDS27998-5W
Rev: 1b
Serial No. Prefix: PX2
Item ViewSonic P/N Ref. P/N Description Q'ty
1 #N/A 29L7VCMB083 L7VC M/B ASSY 1
2 B-SB-0221-0686 AS020126104 ADP/INV ADP-40AFB, 90-264VAC 1
3 B-CB-0206-0170 23L7VBB0026 L&VC BUTTON/B ASSY 1
4 #N/A EAL7V012031 LCD BEZEL SILVER L7VC 1
5 M-MS-0808-9242 EBL7V021014 LENS L7VC 1
6 PL-BT-0706-0179 EBL7V022011 CONTROL BUTTON L7VC 1
7 M-MS-0808-9243 FEL7V003019 LOGO FRONT-VSC-38MM L7VC 1
8 M-MS-0808-9244 FEL7V004015 BIRD LOGO-10MM L7VC 1
9 M-CV-0830-2618 EAL7V013029 LCD COVER(BLACK) L7VC 1
10 M-CV-0830-2484 FBL7V007011 KENSINGTON CAP 1
11 M-CV-0830-2617 FBL7V034019 HINGE ASSY L7VC 1
12 M-BK-0805-0125 FBL7V036011 VESA BKT-LONG L7VC 1
13 #N/A EBL5VC01011 VSC elipse logo plate polish 1
14 M-MS-0808-9237 GAL7V006014 RUBBER PLUG VESA/BK L7VC 4
15 M-MS-0808-9246 GBLM7003017 GASKET-3 LM7S 1
16 M-SCW-0824-6797 MF40080BJ29 SCREW F4.0*8-B (BNI) 15
17 M-BK-0805-0126 FAL7V011018 PCB BRACKET L7VC 1
18 M-MS-0808-7301 FCL7V011010 P/B MYLAR-UP L7VC 1
19 M-MS-0808-9247 EBL70023013 WIRE MOUNT L70L-E 1
20 M-LB-0813-0894 HCL7V005010 WARNING LABEL INVETER 1
21 E-00002216 AA17EL07055 LCD(TFT) QDI QD17EL07 V.9 1
22 M-BK-0805-0127 FAL7V016010 LCD BKT-L L7VC 1
23 M-BK-0805-0128 FAL7V017016 LCD BKT-R L7VC 1
24 M-MS-0808-9248 FCL7A001014 AL FOIL L7A 2
25 M-MS-0808-7302 FCL7V012016 P/B MYLAR-DOWN L7VC 1
26 M-MS-0808-9249 JXLM7002011 FOIL LM7S 1
27 M-SCW-0824-6798 MM30080BBJ2 SCREW M3.0*8-B (NI) 1
28 M-SCW-0824-6799 MM35080BBW2 SCREW M3.5*8-B (NI , WASHER) 1
29 M-SCW-0824-6800 MM30060IBJ8 SCREW M3.0*6.0-I(NI) 11
30 HW-00002361 MM40080PBJ6 SCREW F4.0*8-P(NI) 2
31 M-SCW-0824-6802 MM30040IBJ9 SCREW M3.0*4.0-I(NI) 10
32 M-CV-0830-0284 GAL7V009013 RUBBER PLUG COVER/BK L7VC 2
33 C-BS-0303-0562 EAL7V014017 BASE(BLACK) L7VC 1
34 M-MS-0808-7304 FBL7V035015 BASE PLATE L7VC 1
35 M-MS-0808-9251 GAL5V002013 RUBBER FOOT L5VC 4
36 M-MS-0808-7305 GAL7V007011 RUBBER FOOT FRONT L7VC 1
37 M-LB-0813-1055 HCL7V020019 STAND LABEL L7VC 1
38 CB-00002263 DDL7VCPB101 CABLE ASSY L7VC POWER-MB 1
39 CB-00000182 DDL7VCPC001 CABLE ASSY L7VC MB-VGA 1
40 CB-00002262 DDL7VCTH004 CABLE ASSY L7VC BUTTON-MB 1
41 M-FC-0809-0795 DDL70LLC201 CABLE MB-LCD(30P, 120MM, LG) 1
42 M-MS-0808-7306 EBL7V023017 HINGE CAP L7VC 2
43 M-SCW-0824-0816 MM40100BCI2 SCREW M4*10.0-B(NI,NYLOCK) 4
44 DC-00005132 HCL7VC03011 ID LABEL L7VC 1
45 M-LB-0813-0745 HCL7V002011 SERIAL LABEL 1
46 M-MS-0808-7399 JXL7V003017 LCD FILM L7VC 1

ViewSonic Corporation Confidential - Do Not Copy VA721-2

58
 EXPLODED PARTS LIST (VA721-2 for "QDI Panel V.11")
ViewSonic Model Number: VLCDS27998-5W
Rev: 1b
Serial No. Prefix: PX2
Item ViewSonic P/N Ref. P/N Description Q'ty
1 #N/A 21L7VCMB001 L7VC M/B ASSY 1
2 B-SB-0221-0686 AS020126104 ADP/INV ADP-40AFB, 90-264VAC 1
3 B-CB-0206-0170 23L7VBB0026 L&VC BUTTON/B ASSY 1
4 #N/A EAL7V012031 LCD BEZEL SILVER L7VC 1
5 M-MS-0808-9242 EBL7V021014 LENS L7VC 1
6 PL-BT-0706-0179 EBL7V022011 CONTROL BUTTON L7VC 1
7 M-MS-0808-9243 FEL7V003019 LOGO FRONT-VSC-38MM L7VC 1
8 M-MS-0808-9244 FEL7V004015 BIRD LOGO-10MM L7VC 1
9 M-CV-0830-2618 EAL7V013029 LCD COVER(BLACK) L7VC 1
10 M-CV-0830-2484 FBL7V007011 KENSINGTON CAP 1
11 M-CV-0830-2617 FBL7V034019 HINGE ASSY L7VC 1
12 M-BK-0805-0125 FBL7V036011 VESA BKT-LONG L7VC 1
13 #N/A EBL5VC01011 VSC elipse logo plate polish 1
14 M-MS-0808-9237 GAL7V006014 RUBBER PLUG VESA/BK L7VC 4
15 M-MS-0808-9246 GBLM7003017 GASKET-3 LM7S 1
16 M-SCW-0824-6797 MF40080BJ29 SCREW F4.0*8-B (BNI) 15
17 M-BK-0805-0126 FAL7V011018 PCB BRACKET L7VC 1
18 M-MS-0808-7301 FCL7V011010 P/B MYLAR-UP L7VC 1
19 M-MS-0808-9247 EBL70023013 WIRE MOUNT L70L-E 1
20 M-LB-0813-0894 HCL7V005010 WARNING LABEL INVETER 1
21 #N/A AA17EL07080 LCD(TFT)17" QD17EL07 REV:11 1
22 M-BK-0805-0127 FAL7V016010 LCD BKT-L L7VC 1
23 M-BK-0805-0128 FAL7V017016 LCD BKT-R L7VC 1
24 M-MS-0808-9248 FCL7A001014 AL FOIL L7A 2
25 M-MS-0808-7302 FCL7V012016 P/B MYLAR-DOWN L7VC 1
26 M-MS-0808-9249 JXLM7002011 FOIL LM7S 1
27 M-SCW-0824-6798 MM30080BBJ2 SCREW M3.0*8-B (NI) 1
28 M-SCW-0824-6799 MM35080BBW2 SCREW M3.5*8-B (NI , WASHER) 1
29 M-SCW-0824-6800 MM30060IBJ8 SCREW M3.0*6.0-I(NI) 11
30 HW-00002361 MM40080PBJ6 SCREW F4.0*8-P(NI) 2
31 M-SCW-0824-6802 MM30040IBJ9 SCREW M3.0*4.0-I(NI) 10
32 M-CV-0830-0284 GAL7V009013 RUBBER PLUG COVER/BK L7VC 2
33 C-BS-0303-0562 EAL7V014017 BASE(BLACK) L7VC 1
34 M-MS-0808-7304 FBL7V035015 BASE PLATE L7VC 1
35 M-MS-0808-9251 GAL5V002013 RUBBER FOOT L5VC 4
36 M-MS-0808-7305 GAL7V007011 RUBBER FOOT FRONT L7VC 1
37 M-LB-0813-1055 HCL7V020019 STAND LABEL L7VC 1
38 CB-00002263 DDL7VCPB101 CABLE ASSY L7VC POWER-MB 1
39 CB-00000182 DDL7VCPC001 CABLE ASSY L7VC MB-VGA 1
40 CB-00002262 DDL7VCTH004 CABLE ASSY L7VC BUTTON-MB 1
41 M-FC-0809-0795 DDL70LLC201 CABLE MB-LCD(30P, 120MM, LG) 1
42 M-MS-0808-7306 EBL7V023017 HINGE CAP L7VC 2
43 M-SCW-0824-0816 MM40100BCI2 SCREW M4*10.0-B(NI,NYLOCK) 4
44 DC-00005132 HCL7VC03011 ID LABEL L7VC 1
45 M-LB-0813-0745 HCL7V002011 SERIAL LABEL 1
46 M-MS-0808-7399 JXL7V003017 LCD FILM L7VC 1

ViewSonic Corporation Confidential - Do Not Copy VA721-2

59
 Packing for shipping

PACKING PARTS LIST (VA721-2)

ViewSonic Model Number: VLCDS27998-5W
Rev: 1a
Serial No. Prefix: PX2
Item ViewSonic P/N Ref. P/N Description Q'ty
1 #N/A 1L7VCZCVSE3 VA721-2 LCD MONITOR 1
2 P-FM-0602-0840 HBL7V005019 USER'S MANUAL & CD 1
3 P-FM-0602-0841 HBL7V006015 END CAP (R) 1
4 DC-00004815 HGL7VC06013 QSG VA721 1
5 A-PC-0106-0224 DM333181G97 POWER CORD 3P 1.8M 1
6 P-00004816 HFL7VC03013 CARTON VA721-2 1
7 M-LB-0813-0746 HCL7V003017 CARTON LABEL 1
8 #N/A HAL7V003015 PE BAG 1

PACKING PARTS LIST (VA721-2 for "QDI Panel V.9")

ViewSonic Model Number: VLCDS27998-5W
Rev: 1b
Serial No. Prefix: PX2
Item ViewSonic P/N Ref. P/N Description Q'ty
1 #N/A 1L7VCZXVS02 VA721-2 LCD MONITOR 1
2 P-FM-0602-0840 HBL7V005019 END CAP (L) 1
3 P-FM-0602-0841 HBL7V006015 END CAP (R) 1
4 DC-00005179 HGL7VC04011 QSG VA721 1
5 A-PC-0106-0224 DM333181G97 POWER CORD 3P 1.8M 1
6 P-00004816 HFL7VC03013 CARTON VA721-2 1
7 M-LB-0813-0746 HCL7V003017 CARTON LABEL 1
8 #N/A HAL7V003015 PE BAG 1

PACKING PARTS LIST (VA721-2 for "QDI Panel V.11")

ViewSonic Model Number: VLCDS27998-5W
Rev: 1b
Serial No. Prefix: PX2
Item ViewSonic P/N Ref. P/N Description Q'ty
1 #N/A 1L7VCZXVS11 VA721-2 LCD MONITOR 1
2 P-FM-0602-0840 HBL7V005019 END CAP (L) 1
3 P-FM-0602-0841 HBL7V006015 END CAP (R) 1
4 DC-00005179 HGL7VC04011 QSG VA721 1
5 A-PC-0106-0224 DM333181G97 POWER CORD 3P 1.8M 1
6 P-00004816 HFL7VC03013 CARTON VA721-2 1
7 M-LB-0813-0746 HCL7V003017 CARTON LABEL 1
8 #N/A HAL7V003015 PE BAG 1

ViewSonic Corporation Confidential - Do Not Copy VA721-2

60
 VA721-2
1. System block

DDC-SCL
DDC-SDA

Confidential - Do Not Copy

HSYNC / VSYNC

Triple ADC
Analog
RGB AR , AG, AB Interface

MST8111A

61
LVDS1+ / LVDS1-
Crystal Panel
Clock LVDS2+ / LVDS2- 17” Panel
Gen. Backlight
14.318MHz Interface
CLK+ / CLK-

SCL/SDA
Panel
EEPROM Interface
24C08 Host
RST Control
Interface

ViewSonic Corporation
CPU IRQ
ISP MTV312V64 5V Switch
9. Block Diagram

CSZ Si2301DS

Crystal 12V Power

11.0592MHz Keypad
Board
Backlight
Brightness Control
Inverter
ON/OFF
 2. Power

12V

MC34063

MC34063
AIC1739
5V
12V

3.3V
2.5V

ViewSonic Corporation Confidential - Do Not Copy VA721-2

62
 10. Schematic Diagrams

+3.3V+2.5V

LVDS
SCALAR QDI LCD
MST8111A +5.0V PANEL(17
LVDS)
ANALOG RGB
PC LCDVCC
VGA POWER

LCDPWR_ON5.0V
+3.3V

EEPROM +3.3V
24LC16

MICRO-CONTROLLER
MTV312
DDC
AUDIO_VOLUME
BRIGHTNESS

AUDIO_MUTE
INVCTRL

AC 100-240Vac POWER INVERTER +12V 34063 +3.3V AIC1739 +2.5V

AND AUDIO BOARD

34063 +5.0V

ViewSonic Corporation
Model

Title

Date Rev:

ViewSonic Corporation Confidential - Do Not Copy VA721-2

63
 L2 FCM 1608C-300T06 (BULL WILL) C1 0.047u/6
VGA_SDA_O L1 100/6 RED+IN R1 33/6
SDA-VGA 5 RED+ 4
C2
CN1 3 R2

16
11 1 RED+IN 2 1 C3 0.047u/6
6 RED-IN SOT23 RED-IN 75/6/F NC R3 68/6
RED- 4
DDC-SDA 12 2 GREEN+IN
7 GREEN-IN
IN-H 13 3 BLUE+IN L3 FCM 1608C-300T06 (BULL WILL) C4 0.047u/6
8 BLUE-IN DSUB_5V GREEN+IN R4 33/6
GREEN+ 4
IN-V 14 4 L35 0/6 C5
9 DSUB_5V_O R5
DDC-SCL 15 5
10 VGA_CON_O L36 100/6/NC C6 0.047u/6
VGA_CON 5
GREEN-IN 75/6/F NC R6 68/6
GREEN- 4
QBHF2!WHB VGA/NC

17
JOQVU VGA_SCL_O L5 100/6
SCL-VGA 5
C7 0.01U/6
R7 100/6
SOGIN 4

L6 FCM 1608C-300T06 (BULL WILL) C8 0.047u/6

BLUE+IN R8 33/6
BLUE+ 4
CN2 C9
GND RED-IN 1 2 RED+IN R9
GREEN-IN + + GREEN+IN
3 + + 4
BLUE-IN 5 6 BLUE+IN C10 0.047u/6
+ + GND BLUE-IN 75/6/F NC R10 68/6
7 + + 8 BLUE- 4
IN-H 9 10 IN-V
VGA_CON_O + + VGA_SDA_O
11 + + 12
VGA_SCL_O 13 14 DSUB_5V_O
+ +
VGA INPUT
VDD3V3
DSUB_5V L7 100/6
IN-H R11 100/6 HSYNC
VDD3V3 HSYNC 4
D1 R12 C11
BAT54C-GS08/NC 2K/6 33P/6
1

D2 D3 D4
DAN217K/NC DAN217K/NC DAN217K/NC C12

RED+IN 3 GREEN+IN 3 BLUE+IN 3 IN-V R13 100/6 DDC_VS R14 100/6 VSYNC
VSYNC 4
0.1U/6/NC R15 C13

2K/6 33P/6
R107 R16 R17
2

U1 2K/6/NC
2K/6/NC 2K/6/NC
1 NC VCC 8
IN-H IN-V VGA_SDA_O VGA_SCL_O VGA_CON_O 2 7 DDC_VS
NC VCLK DDC_VS 5
3 6 SCL-VGA
NC SCK
4 5 SDA-VGA
VSS SDA
1

1
D5 D6 D7 D8 24LC21/NC
Z5.6/NC Z5.6/NC Z5.6/NC Z5.6/NC VDD3V3

1
D32 D9 D10 VCC-DDC
R109
2

Z5.6/NC 0/6/NC Z5.6/NC Z5.6/NC

D11

2
BAT54C-GS08/NC

C14
CN3

25 0.1U/6/NC
1 TX2- TX2- 4
RX2-
2 TX2+ TX2+ 4
RX2+
GND 3
1

R20 R21
RX4- 4 U2
D12 D13 2K/6/NC 2K/6/NC
RX4+ 5
6 SCL-DDDC 1 NC VCC 8
SCL Z5.6/NC Z5.6/NC 2 7
7 SDA-DDDC NC VCLK
SDA 3 6 R22 100/6/NC SCL-DDDC
VS 8 NC SCK
4 5 SDA-DDDC
2

VSS SDA R23 100/6/NC

9 TX1- TX1- 4
RX1- TX1+ M24C02/NC
RX1+ 10 TX1+ 4
11

1
GND
1

RX3- 12
D14 D15 D16 D17
RX3+ 13
14 VCC-DDC
5V Z5.6/NC Z5.6/NC Z5.6/NS Z5.6/NS
GND 15
16 R24 10K/6NC
HP

2
R25 10K/6NC
2

HP-MCU 5
17 TX0- TX0- 4
RX0-
18 TX0+ TX0+ 4
RX0+
GND 19
RX5- 20
RX5+ 21
GND 22
23 TXC+ TXC+ 4
RXC+
24 TXC- TXC- 4
RXC-

ViewSonic Corporation
1

D18 C15
1

C16 0.1U/6NC
1U/6NC Z5.6/NC D19 D20 D21 D22 R26 Model VGA AND DVI INPUT
26 Z5.6/NC Z5.6/NC Z5.6/NC Z5.6/NC 10K/6NC
2

Title
2

DVI-D/NC Date Rev:

ViewSonic Corporation Confidential - Do Not Copy VA721-2

64
 VAD VPLLVDVI VDPLL VPO VDD

VDD3V3 VPO
L8

104
114
126

117
CX601T02001/8

55
65

35

45
51

53

11
21
84
94

18
87
97
U3 C17 C18 C19 C20 C21 C22 C23 C24

VDDP
VDDP
VDDP
VDDP
VDDP
VDDP
VDDP
AVDD_MPLL

AVDD_PLL
AVDD
AVDD

VDDC
VDDC
VDDC
VDDC
AVDD_DVI
AVDD_DVI
106 LVACKP 6 22U 0.1U/6 0.1U/6 0.1U/6 0.1U/6 0.1U/6 0.1U/6 0.1U/6
RA0P
RA0N 107 LVACKM 6
3 RED+ 63 108 PA2 FB2P 6
RIN0 RA1P PA3
3 RED- 62 RIN0M RA1N 109 FB2N 6
60 110 PA4 FB1P 6
3 GREEN+ GIN0 RA2P
59 111 PA5 FB1N 6
3 GREEN- GIN0M RA2N PA6
3 SOGIN 61 SOGIN0 RA3P 112 FB0P 6
58 113 PA7 FB0N 6
3 BLUE+ BIN0 RA3N
3 BLUE- 57 BIN0M
3 HSYNC 37 HSYNC0
38 98 PA10 FG2P 6 VDD3V3 VAD VDD3V3 VPLL
3 VSYNC VSYNC0 GA1P
29 99 PA11 FG2N 6 L9 L10
DDC1_CLK/GPO8 GA1N PA12
28 DDC1_DAT/GPO7 GA2P 100 FG1P 6
101 PA13 FG1N 6 CX601T02001/8 CX601T02001/8
GA2N PA14 C25 C26 C27 C28 C29
GA3P 102 FG0P 6
103 PA15 FG0N 6
GA3N 22U 0.1U/6 0.1U/6 22U 0.1U/6
3 TX2+ 40 R+
3 TX2- 41 R-
43 88 PA18 FR2P 6
3 TX1+ G+ BA1P
44 89 PA19 FR2N 6
3 TX1- G- BA1N
46 90 PA20 FR1P 6
3 TX0+ B+ BA2P
47 91 PA21 FR1N 6
3 TX0- B- BA2N
49 92 PA22 FR0P 6
3 TXC+ CK+ BA3P
50 93 PA23 FR0N 6
3 TXC- CK- BA3N
R27 390/1% 52 118 PA24 FCLKP 6 VDD3V3 VDVI VDD3V3 VDPLL
VDVI REXT CLKAP
119 PA25 FCLKN 6 L11 L12
CLKAN
CX601T02001/8 CX601T02001/8
C30 C31 C32 C33 C34
66 16 PB2 BB0N 6
C35 REFP RB1P PB3 22U 0.1U/6 0.1U/6 22U 0.1U/6
MST8111A RB1N 17
22 PB4
BB0P
BB1N
6
6
0.1U/6 Dual Input RB2P PB5
67 REFM RB2N 23 BB1P 6
24 PB6 BB2N 6
RB3P PB7
RB3N 25 BB2P 6
GB0P 6
GB0N 7
8 PB10 BG0N 6
GB1P PB11
GB1N 9 BG0P 6
5 CSZ 69 12 PB12 BG1N 6 VDD2V5 VDD
R28 100/6 CSZ GB2P PB13 L13
71 SCL GB2N 13 BG1P 6
5 SCL R29 100/6 70 14 PB14
5 SDA SDA GB3P BG2N 6
5 RESET 32 15 PB15 BG2P 6 0/8
R51 22/6 HWRESETZ GB3N C36 C37 C38 C39 C40
5 INT 72 INT BB0P 122 LVB2P 6
30 DDCROM_CLK/GPO6 BB0N 123 LVB2M 6
1

C96 C97 31 124 PB18 BR0N 6 22U 0.1U/6 0.1U/6 0.1U/6 0.1U/6
DDCROM_DAT/GPO5 BB1P
1

R110 C98 125 PB19 BR0P 6

0.1u/6/NC 0.1u/6/NC BB1N PB20
BB2P 128 BR1N 6
0.1u/6/NC PB21
2

BB2N 1 BR1P 6
10K/NC PB22
2

BB3P 4 BR2N 6
73 5 PB23 BR2P 6
5 BRIGHTNESS PWM0 BB3N
74 120 PB24 BCLKN 6
PWM1 CLKBP PB25
CLKBN 121 BCLKP 6
C41
2 1 33 75 ESP R30 22/6/NC
XIN ESP OSP R31 22/6/NC
OSP 76 FXDIO 6
22P/6 X1 77
EINV OINV R32 NC
OINV 78 BXDIO 6
C42 14.318MHz
2 1 34 83 GPO0 R33 22/6/NC POL 6
XOUT GPO0 GPO1 R34 22/6/NC
GPO1 82 XSTB 6
22P/6 81 GPO2 YDIO 6
5 XTAL C43 0.1U/6 GPO2 GPO3
3 BYPASS GPO3 80 YCLK 6
2 79 GPO4 YOE 6
AVSS_LPLL GPO4
AVSS_MPLL

AVSS_PLL

AVSS_DVI
AVSS_DVI
AVSS_DVI

GNDC
GNDC
GNDC
GNDC
GNDP
GNDP
GNDP
GNDP
GNDP
GNDP
GNDP
AVSS
AVSS
AVSS

ViewSonic Corporation
105
115
127

116
68
56
64

36

54

39
42
48

10
20
85
95

19
86
96

Model VGA AND DVI INPUT

Title

Date Rev:

ViewSonic Corporation Confidential - Do Not Copy VA721-2

65
 VDD3V3
VDD3V3 VDD3V3
U8
VCPU

1
1 2

GND
MCP810M3X-2.93 VCC RESET R37 R38 R39 R40 R99 R100 R101 R105 R106
G Q1

1
3 VDD3V3 10K/6 MMST3906 10K/6
NC C44 R35 R36 33K/6 33K/6 33K/6 33K/6 33K/6 33K/6/NC
33K/1K/6/NC

3
LED_G CN4

2
1 2

1
2 1 VCPU 0.1U/6 U4 Q2 PWR L37 1K/6 PWR_O
R V

2
1 2
C45 1 8 2K/6 2K/6 R96 4.7K/6 MMST3906 MENU L38 1 2 1K/6 MENU_O 10
A0 VCC R46 100/6 LED_R SEL L39 1K/6 SEL_O 9
2 A1 WP 7 1 2 1 2 8
0.1U/6 SCL_O SCL_1 UP L14 1K/6 UP_O

2
3 A2 SCK 6 1 2
4 5 SDA_O SDA_1 R97 4.7K/6 DOWN L15 1 2 1K/6 DOWN_O 7
R41 82K/6 VSS SI RIGHT L40 1K6/NCRIGHT_O 6 D
1 2
R43 R44 R45 24LC08B R47 100/6 LEFT L41 1 2 1K/6/NCLEFT_O 5
L16 330/6 4
PARAMETER 1 2 3
D23 L17 330/6
EEPROM 1 2 2
VCPU VDD3V3 L18 1 2 0/8

C94

C95
U5 L19 1

1C46

1C47

C92

C93
NC 10K/6 NC

C82
1N4148/NC 7 RST VDD 8 1 2
4 4501-10-10P-R
VDD3
0/8/NC

1
R48 22/6 MH0001 UP R95 C48 C49
4 CSZ 17 P1.0 P1.6 24 TO BUTTON BOARD

0.1U/6

0.1U/6

0.1U/6
R49 22/6 MH0002 DOWN R52 R88

0.1U/6 2

0.1U/6 2
18 25

0.1U/6/NC

0.1U/6/NC
4 SDA P1.1 P1.7
R50 22/6 MH0003 20
4 SCL P1.2 10K/6
PWR 0.1U/6 22U

2
21 P1.3 HCLAMP/DA7 35
1

1
C99 C100 MENU 22 38 10K/6 NC modify debug port
SEL P1.4 HLFHO/DA9
23 P1.5 P5.2/DA2 1 R89 1 100/6 2 PC5V_OFF VDD3V3
0.1u/6/NC 0.1u/6/NC SCL_1 14 34 CN5
P3.5/T1/ISCL P5.6/DA6 VGA_CON 3
R53 2K/6 SDA_1
2

VCPU 2 13 P3.4/T0/ISDA P5.0/DA0 3 VDDCTRL_2 6

2 R55 10K/6/NC 4
P5.1/DA1 VDD3V3 4
R54 2K/6 R56 10K/6/NC SCL-VGA 3
VDD3V3 3
R18 100/6 29 33 R57 0/6/NC SDA-VGA 2
3 SCL-VGA P3.0/RXD/HSCL P6.7/DA13 2
R19 100/6 28 32 1
3 SDA-VGA P3.1/TXD/HSDA P6.6/DA12 VDDCTRL_1 6 1
R113 2K/6
VCPU
1

C50 C51 43 27 PWR_SEL JWT-A2001WV2-06/NC

R98 100/6 HSYNC P6.0/AD0
22P/6 3 DDC_VS 44 VSYNC P6.1/AD1 26 RESET 4
22P/6
2

5 DEBUG PORT
2.0mm pitch
VCPU
37 P4.1/HBLANK
NC
NC 6 R42 NC 90° E&T
INVCTRL 36
R58 NC P4.0/VBLANKK RIGHT
VCPU P6.3/AD3 9
16 LEFT
R59 22/6 SS0003 P6.2/AD2 VDD3V3 VDD3V3 VDD3V3 VDD3V3 VDD3V3 VDD3V3 VDD3V3
19 P3.2/INT0 P6.4/DA10 30 HP-MCU 3
4 INT 31
P6.5/DA11 D36 D37 D24 D25 D33 D34 D35

1
15 42 LED_R
P4.2/STOUT P5.3/DA3 LED_G
P5.4/DA4 41
C52 R60 40
P5.5/DA5
2 1 11 X2 HALFV/DA8 39 VCPU 3 RIGHT_O 3 LEFT_O 3 PWR_O 3 MENU_O 3 SEL_O 3 UP_O 3 DOWN_O
R61 10K/6
22P/6 X2 100/6 12 10
C53 11.0592MHz X1 VSS
2 1 DAN217K/NC DAN217K/NC DAN217K DAN217K DAN217K DAN217K DAN217K

2
22P/6 MTV312
C54 0.1U/6/NC
4 XTAL 2 1

CN6 CONN 4x2-R R108 0/1206 Q10

12V
FUSE1 L20 VCC12 PW0004 VDD3V3 MMST3906
0/1206 BC0610R6H-B246-2_5/NC
U6
1 2 1 2
3 4 R63
5 6 C56 8 1

1
C55 C57 VCC12 DRIVE SWITCH D26 EC10QS04
8
0.1u/6 0.1u/6 330u/16V/NC 0.3/1206 7 2 PW0006 1 2 R90

1
SENSE EMITTER 10K/6

2
PW0003 6 3 PW0007 R114
VCC TIMING L21 3.3/6
1

DSUB_5V

2
GND C58 C59 5 4 GND
CII GND 47UH

2
VDD3V3 VDD3V3 330U/16V 0.1U/6 CPU VDD3V3 Q11
MC34063
2

PW0005 R66 3.6K/F/6 MMST3906 R111 47/6

1
R64 1 2 VCPU
R65

1
R67 C60 C61 C62 C63
0/6 GND

1
10K/6 2.2K/F/6 470P/6 0.1U/6 330U/16V 330U/16V/NC
1K/6 R68 R91 R92 D30

2
Q3 INVCTRL 3.3V
L22 MMST3906 4.7K/6 2K/6
10K/6

23
R93

2
2 1 GND GND GND GND GND
GND PC5V_OFF 1 22 Q12
2N3904
C101 C64 R69 1K/6

1
VCC12
1U/6 0.1U/6 10K/6/NC
VDD3V3

1
R94
6.8K/6
R70
1K/6 VDD3V3
L23 VDD2V5 PWR_SEL

2
0/6 Q4

1
2 1 R71 10K/6 3 1
VIN VOUT R112
3

C65 2K/6
C68 C69 C70

ViewSonic Corporation
1U/8 Q5 2
SN7002E GND 22U

2
0.1U/6 0.1U/6
2 BRIGHTNESS 4
AIC1739
Model MCU & BUTTOM
1

Title

Date Rev:

ViewSonic Corporation Confidential - Do Not Copy VA721-2

66
 VCC12 LCDVCC5
LCDVDD CN9
Q6 SI2301DS BR1P 1 2 BR1N
VDD3V3 BR0P 1 2 BR0N
3 3 4 4
LVB2M 5 6 LVB2P LVB2P 4
LCDVDD R103 R104 4 LVB2M GND 5 6 GND
1 3 7 8
BCLKP 7 8 BCLKN LCDVCC
0/8 9 9 10 10
Q7 SI2301DS LCDVCC FCLKN FCLKP

2200P/6/NC
11 12

1
R73 C74 C75 0/8/NC FB0N 11 12 FB0P

330U/16V/NC
82K/6/NC

2200P/6/NC
13 13 14 14
GND 15 16 GND R81
R72

10K/6/NC 0.1U/6/NC LCDVCC 15 16

C72

C73
FB1N FB1P 3.6K/F/6/NC

2
1 3 17 18
17 18
2

2
FB2N 19 20 FB2P
LVACKM 19 20 LVACKP
4 LVACKM 21 22 LVACKP 4

1
R74 C76 R75 C78 C79 21 22
D 3
FG0N 23 23 24 24 FG0P
C77 25 26 POL
2200P/6 10K/6 0.1U/6 330U/16V GND 25 26 LCDVCC

2
2200P/6 27 27 28 28
82K/6

2
LCDVCC LCDVCC
10K/6/NC

29 29 30 30
G2 1
R76

Q8 S D 3
R82
1841 30P 1.2K/F/6/NC
3

DTC144EUA/NC R77

2 VDDCTRL_1 5 G2 1
82K/6 Q9 S
C 3 GND

3
DTC144EUA GND
1

2 VDDCTRL_2 5
B 2 1 E
C 3

1
CN7 CN8 B 2 1 E
1 1
4 FB0N 2 4 BB2P 2
4 FB0P 3 4 BB2N 3
4 4
4 FB1N 5 4 BB1P 5
4 FB1P 6 4 BB1N 6
7 7 U7
4 FB2N 8 4 BB0P 8
4 FB2P 4 BB0N R83
9 9
10 10 8 DRIVE SWITCH 1
4 FG0N 4 BG2P 0/1206 D29 EC10QS04
11 11
4 FG0P 12 4 BG2N 12 7 SENSE EMITTER 2 1 2
13 13

2
4 FG1N 14 4 BG1P 14 VCC12 6 VCC TIMING 3
4 FG1P 4 BG1N L32
15 15
16 16 5 CII GND 4

1
4 FG2N 4 BG0P C86 47UH GND LCDVCC5
17 17
4 FG2P 18 4 BG0N 18 1U/8 MC34063/NC LCD
19 19 R85 3.6K/F/6

1
4 FCLKN 20 4 BCLKP 20
4 FCLKP 21 4 BCLKN 21
22 22

1
4 FR0N 4 BR2P R86 C87 R87 C88 C89 C90
23 23 GND
4 FR0P 24 4 BR2N 24 1.2K/F/6 470P/6 33K/6 0.01U/6 0.1U/6 330U/16V
25 25

2
4 FR1N 26 4 BR1P 26
4 FR1P 27 4 BR1N 27
28 28
4 FR2N 29 4 BR0P 29
4 FR2P 4 BR0N GND GND GND GND GND GND
30 30 GND
31
4 FXDIO 32
4 XSTB AF730B-A2G1T/NC
33
4 POL 34
4 BXDIO 35
36
4 YCLK 37
4 YDIO 38
4 YOE 39
H3 H4
40
41 2 9 2 9
42 3 8 3 8
LCDVDD L26 0/8/NC 4 1 7 4 1 7
L27 0/8/NC 43
44 5 6 5 6
L28 0/8/NC
L29 0/8/NC 45
MTH276D126 MTH276D126
46
LCDVCC L30 0/8/NC 47
48
H1 H2
49
50 2 9 2 9

ViewSonic Corporation
3 8 3 8
1

4 1 7 4 1 7
1

C80 C81 AF750B-A2G1T/NC 5 6 5 6

1

0.1U/6/NC 0.1U/6/NC MTH276D126 MTH276D126 Model PANEL INTERFACE

2

Title

Date Rev:

ViewSonic Corporation Confidential - Do Not Copy VA721-2

67
 SW5
1 2
8 3 4
7 5
6 HDK632A
5
4
3
2 SW4
1
1 2
3 4
CN1 5
4500-10-8P-R HDK632A

SW3
1 2
3 4
5

HDK632A

SW2
A2 green 1 2
3 4
5
C
HDK632A
LED1
EL-209-2EGW A1 orange SW1
1 2
3 4
5

HDK632A

CN1
LED1

SW5 SW4 SW3 SW2 SW1

ViewSonic Corporation
Model BUTTOM
Title

Date Rev:

ViewSonic Corporation Confidential - Do Not Copy VA721-2

68
 11. PCB Layout Diagrams

Main board

Control board

ViewSonic Corporation Confidential - Do Not Copy VA721-2

69
 * Reader’s Response*
Dear Readers:

Thank you in advance for your feedback on our Service Manual, which allows continuous improvement
of our products. We would appreciate your completion of the Assessment Matrix below, for return to
ViewSonic Corporation.
Assessment
A. What do you think about the content of this Service Manual?
Unit Excellent Good Fair Bad
1. Precautions and Safety Notices

2. Specification

3. Front Panel Function Control Description

4. Circuit Description
5. Adjustment Procedure

6. Troubleshooting Flow Chart

7. Recommended Spare Parts List

8. Exploded Diagram and Exploded Parts List

9. Block Diagrams

10. Schematic Diagrams

11.PCB Layout Diagrams

B. Are you satisfied with this Service Manual?

Item Excellent Good Fair Bad
1. Service Manual Content
2. Service Manual Layout
3. The form and listing

C. Do you have any other opinions or suggestions regarding this service manual?

Reader’s basic dada:

Name: Title:
Company:
Add:
Tel: Fax:
E-mail:
After completing this form, please return it to ViewSonic Quality Assurance in the USA at facsimile
1-909-839-7943. You may also e-mail any suggestions to the Director, Quality Systems & Processes
(marc.maupin@viewsonic.com)

ViewSonic Corporation Confidential - Do Not Copy VA721-2

70