ViewSonic VA702-3, VA702b-3, VLCDS27998-3W, VLCDS27998-4W Service manual

Service Manual

ViewSonic VA702-3

VA702b-3

Model No. VLCDS27998-3W

VLCDS27998-4W

17” Color TFT LCD Display

(VA702-3_VA702b-3_SM Rev. 1a May 2006)

ViewSonic 381 Brea Canyon Road, Walnut, California 91789 USA – [phone]

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Copyright

Copyright © 2006 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 means, 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

Opt quest 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 05/02/2006 Initial Release J. Chang

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TABLE OF CONTENTS

1. Precautions and Safety Notices 1

2. Specification 3

3. Front Panel Function Control Description 7

4. Circuit Description 9

5. Adjustment Procedure 17

6. Troubleshooting Flow Chart 40

7. Recommended Spare Parts List 42

8. Exploded Diagram and Exploded Parts List 45

9. Block Diagram 49

10. Schematic Diagrams 51

11. PCB Layout Diagrams

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1. Precautions and Safety Notices

1. 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 guide line

2. Safety Check :

Care should be taken while servicing this LCD display. Because of the high voltage used in the
inverter circuit. These voltage are exposed in such areas as the associated transformer circuits .

3. POWER SUPPLY REQUIREMENTS
The external power converter for this display utilizes AC and DC cords , AC cord is detachable , but

DC cord is permanently attached . Any attempt to replace another adapter could result in serious
problem on the display .

4. LEAKAGE CURRENT HOT CHECK
4-1 Plug the AC cord directly into the AC outlet. Do not use an isolation transformer during this

check.

4-2 Connect a 1500 ohm , 10 watt resistor , paralleled by a 0.15uF capacitor between each metallic

part and a good earth ground

4-3 Use an AC voltmeter with 1000 ohm / volt or more sensitivity and measure the AC voltage

across the combination 1500 ohm resistor and 0.15uF capacitor.
4-4 Move the resistor connection to each exposed metallic part and measure the voltage.
4-5 Reverse the polarity of the AC plug in the AC outlet and repeat the above measurement.
4-6 Voltage measured must not exceed 1.5 volt RMS, from any exposed metallic part to the ground.

A leakage current tester may be used in the above hot check, in which case any circuit measured

must not exceed 1.0 milliamp. In the case of a measurement exceeding the 1.0 milliamp value, a

rework is required to eliminate the chance of a shock hazard .

AC VOLTMETER

V

0.15u
.

To Metal Parts

1500 10W

Earth Ground

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Handling & Placing method

Correct methods : Incorrect Methods :

Only touch the metal-frame of the panel or the front
cover of the monitor .Do not touch the surface of the
polarizer .

Surface of the panel is pressed by fingers & this may
cause “ MURA “

Take out the monitor with cushion

Place the monitor on a clean & soft foam pad .

Take out the monitor by grasping the LCD panel.
That may cause “ MURA“.

Place the monitor on foreign objects .
That could scratch the surface of panel

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2. Specification

GENERAL REQUIREMENTS

General Specifications

Test Resolution & Frequency
Test Image Size Full Size
Contrast and Brightness Controls Factory Default: Contrast = 70%, Brightness = 100%

1280 x 1024 @ 60Hz

SIGNAL INTERFACE

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

Power Supply

Internal Power Supply
Input Voltage Range
Input Frequency Range
Short Circuit Protection
Over Current Protection
Leakage Current

Efficiency 70 % TYPICAL AT 115VAC FULL LOAD
Fuse

Power Dissipation
Max Input AC Current

Part Number: ADP-40AFB
90 to 264 VAC

47.5 to 63 Hertz
OUTPUT CAN BE SHORTED WITHOUT DAMAGE.

4.5 A TYPICAL AT 12 VDC

3.5MA (MAX) AT 254VAC / 60HZ

INTERNAL AND NOT USER REPLACEABLE

36 WATTS (MAX)

1.2 ARMS @ 90VAC, 0.8 ARMS @180VAC

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ELECTRICAL REQUIREMENTS

Horizontal / Vertical Frequency

Horizontal Frequency
Vertical Refresh Rate
Maximum Pixel Clock
Sync Polarity Independent of sync polarity.

Primary Presets

Primary Preset

Look up table timing

<<Analog>>
640 x 350 @ 70Hz, 31.5kHz
640 x 480 @ 60Hz, 31.5kHz
640 x 480 @ 67Hz, 35.0kHz
640 x 480 @ 75Hz, 37.5kHz
640 x 480 @ 72Hz, 37.9kHz
640 x 480 @ 85Hz, 43.27kHz
720 x 400 @ 70Hz, 31.5kHz

30 – 80 kHz
50 –85 Hz.

135 MHz

1280 x 1024 @ 60Hz

800 x 600 @ 56Hz, 35.1kHz
800 x 600 @ 60Hz, 37.9kHz
800 x 600 @ 75Hz, 46.9kHz
800 x 600 @ 72Hz, 48.1kHz
800 x 600 @ 85Hz, 53.7kHz
832 x 624 @ 75Hz, 49.7kHz
1024 x 768 @ 60Hz, 48.4kHz
1024 x 768 @ 70Hz, 56.5kHz
1024 x 768 @ 72Hz, 58.1kHz
1024 x 768 @ 75Hz, 60.0kHz
1024 x 768 @ 85Hz, 68.67kHz
1280 x 1024 @ 60Hz, 63.4kHz
1280 x 1024 @ 75Hz, 79.97kHz

21. 1280x720 @ 60Hz, 45kHz (HDTV)
Changing Modes
Maximum Mode Change Blank Time, for
image stability. Note:

3 seconds (Max)
1 seconds (Typ) for recognized timings

1) Excluding “Auto Adjust” time

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.

1-2 seconds (Typ) for unrecognized timing
.

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LCD Panel

1st Source Panel
Type
Active Size 337.920 (H) x 270.336 (V)
Pixel Arrangement RGB Vertical Stripe
Pixel Pitch 0.264 mm

Glass Treatment ANTI GLARE
# of Backlights 4 CCFL EDGE-LIGHT (2 TOP / 2 BOTTOM)
Backlight Life 50,000 HOURS (TYP) / 40,000 HOURS (MIN)

Luminance –
Condition:
CT = 6500K, Contrast = Max, Brightness = Max
Brightness Uniformity 75 % Entire Area (minimum)
Contrast Ratio 500:1 (Typ), 300:1 (Min)
Color Depth 16 million colors (6 bit panel)
Viewing Angle (Horizontal) 140 deg @ CR>10, 160 deg @ CR>5

Viewing Angle (Vertical)

QD17EL0711
NORMALLY WHITE, TN, OPTICAL COMPENSATION FILM

260 CD/M2 (TYP AFTER 30 MINUTE WARM UP)
220 CD/M2 (MIN AFTER 30 MINUTE WARM UP)

125 deg @ CR>10, 145 deg @ CR>5

Response Time
10%-90% @ Ta=25°C
Panel Defects Please see Panel Quality Specifications.

8 ms (Tr= 6 ms, Tf = 2 ms) (Typ)

TBD ms (Tr= TBD ms, Tf = TBD ms) (Max)

MECHANICAL

Dimensions (Base attached unless otherwise specified)

Width
Height
Depth
Depth (Head Only)
Monitor Weight

Packaging Specification

Width
Height
Depth
Gross Weight
# units per Pallet

377.6 mm

374.0 mm

195.6 mm

55.0 mm

4.1 kg / 9.0 lbs

450 mm

522 mm

135 mm

5.2 kg (11.45 lb)

36/72 (air/sea)

20’/40’ Container Loading, Palletized

Ergonomics

Tilt Up
Tilt Down
Swivel Right
Swivel Left
Height Adjust
Pivot

720/1728 pieces

20 DEGREES MINIMUM

-5 degrees

0 degrees

0 degrees

0 mm

0 DEGREES (CLOCKWISE)

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ENVIRONMENTAL

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

Main Menu
With On View controls

Front Control Panel
shown below in detail

Displays the control screen for the
highlighted control. Also toggles
between two controls on some screens.
Also a shortcut to auto image adjust

exits the control screen
and saves adjustments.

Power light
Green = ON
Orange=power

saving

Power On / Off Displays the Main Menu or

Scrolls through menu options and
adjusts the displayed control.
Also a shortcut to display the
Contrast adjustment control screen.

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ViewSonic VE702/b -3

Main Menu Controls

Adjust the menu items shown below by using the up and down buttons.
A. 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.

B. Contrast adjusts the difference between the image background (black level) and the foreground (white level).
C. Brightness adjusts the lamps current to control the screen brightness.
D. Color Adjust provides several color options: preset color temperatures and Custom User Color which allows you to adjust

red (R), green (G), and blue (B). The factory setting for this product is 6500K (6500° Kelvin).

9300K — Adds blue to the screen image for cooler white (used in most office settings with fluorescent lighting).
5400K — Adds red to the screen image for warmer white and richer red.
Custom User Color — Individual adjustments for red, green, and blue.
1 To select color (R, G or B) press button [2].

2 To adjust selected color, press p or q .

3 When you are finished making all color adjustments, press button [1] twice.

E. Information displays the timing mode (video signal input) coming from the graphics card in your computer. See your

graphic card’s user guide for instructions on changing the resolution and refresh rate (vertical frequency). VESA 1280 x
1024 @ 60 Hz (recommended) means that the resolution is 1280 x 1024 and the refresh rate is 60 Hertz.

F. Manual Image Adjust controls are explained below:
H. Size (Horizontal Size) adjusts the width of the screen image.
NOTE: Vertical size is automatic with your LCD display.
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.

Fine Tune sharpens focus by aligning the illuminated text and/or graphic characters.
Sharpness adjusts the clarity and focus of the screen image.
Setup Menu controls are explained below:
Language allows you to choose the language used in the menus and control screens.
Resolution Notice displays the recommended resolution for this LCD display.
Enable allows the Resolution Notice to appear on-screen.
Disable will not allow the Resolution Notice to appear on-screen.
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 OSD disappears.

G. OSD Position allows you to move the on-screen display menus and control screens.
H. 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

PIN

MNEMONI

SIGNAL

1RVRed Video

2GVGreen Video

3BVBlue Video

4NCNone

5

GND

Ground(DDC return)

6RGRed GND

7GGGreen GND

8BGBlue GND

9

+5V

+ 5V (for DDC)

10SGSync GND

11NCNone

12

SDA

DDC Data

13HSHorizontal Sync

14VSVertical Sync

15

SCL

DDC Clock

1. Outline

1.1 POWER On/Off , LED, Button"2" , Up arrow- button , Down arrow button , Button"1" , button , Down arrow button ,

Button"1" , on the front panel.

1.2 Video signal connector, and AC-IN are located on the back side of the cabinet.

1.3 OSD menu includes the following function;

AUTO IMAGE ADJUST
CONTRAST / BRIGHTNESS
COLOR ADJUST
INFORMATION
MANUAL IMAGE ADJUST
SETUP MENU
MEMORY RECALL

1.4 CONTRAST and BRIGHTNESS can be directly controlled with UP / DN key.
.

2. CONNECTORS

2.1 AC inlet : CEE22 typed connector

2.2 Video signal connector 14P + Mini D-Sub

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3. ELECTRICAL SPECIFICATIONS

3.1 Standard conditions

Display Area

Video Signal

Contrast

Brightness

Ambient

Input

Warming up

Display

3.2 POWER

3.2.1 Power supply

Input Voltage 90 -240 ~Volts
Power Frequency
Input current

338 x 270 mm

0.7 Vpp

70%

Max.
20 +/- 5 °C

AC

> 30 min

1280 x 1024

50/ 60 Hz +/-3Hz
<1.5Arms @ 90Vac

<0.75Arms@240Vac
Inrush current 90A(max.) at 230Vac
Power consumption 50Watt
Output Voltage @0-3.0A load 12Vdc +/-5%

3.2.2 Power Management

State Power Indicator

On 36Watt Green

Standby <1Watt Amber

Off <1Watt

3.3 Acceptable timing

If your 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 This LCD display is adjusted at the factory using 0,7 Vp-p Video signal.

3.4.2 Sync Signal level

H/V Separate : TTL level

3.4.3 Input impedance
Video input : 75 ohms
Sync input : > 1 k ohms

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
QDI QD17EL07 v11

VA702-3

Time: 15:03:33
Date: Wed Oct 19, 2005
______________________________________________________________________
______________________________________________________________________
VIEWSONIC CORPORATION
EDID Version # 1, Revision # 3
DDCTest For: ViewSonic VA702-3SERIES
______________________________________________________________________
______________________________________________________________________
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 | 1D B5 01 01 01 01 01 0F 01 03
20 | 08 22 1B 78 2E 59 95 A4 57 47
30 | 9C 24 15 50 54 BF EF 80 81 80
40 | 81 40 71 4F 61 59 45 59 31 59
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 51 35 4B
80 | 30 35 30 31 30 30 30 30 31 0A
90 | 00 00 00 FD 00 32 55 1E 52 0E
100 | 00 0A 20 20 20 20 20 20 00 00
110 | 00 FC 00 56 41 37 30 32 2D 33
120 | 53 45 52 49 45 53 00 92
______________________________________________________________________
(08-09) ID Manufacturer Name ________________ = VSC
(11-10) Product ID Code _____________________ = B51D
(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)
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 - 0.642 Green X - 0.279 Blue X - 0.143 White X - 0.313
Red Y - 0.341 Green Y - 0.610 Blue Y - 0.083 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
1024 X 768 @85Hz
800 X 600 @85Hz
640 X 480 @85Hz
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:
Q5K050100001
______________________________________________________________________
(90-107) Detailed Timing / Descriptor Block 3:

Monitor Range Limits:
Min Vertical Freq - 50 Hz
Max Vertical Freq - 85 Hz
Min Horiz. Freq - 30 KHz
Max Horiz. Freq - 82 KHz
Pixel Clock - 140 MHz
Secondary GTF - Not Supported
______________________________________________________________________
(108-125) Detailed Timing / Descriptor Block 4:

Monitor Name:
VA702-3SERIES
(126) No Extension EDID Block(s)
(127) CheckSum OK

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VA702b-3

Time: 15:33:23
Date: Wed Oct 19, 2005
______________________________________________________________________
______________________________________________________________________
VIEWSONIC CORPORATION
EDID Version # 1, Revision # 3
DDCTest For: ViewSonic VA702-3SERIES
______________________________________________________________________
______________________________________________________________________
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 | 1D B5 01 01 01 01 01 0F 01 03
20 | 08 22 1B 78 2E 59 95 A4 57 47
30 | 9C 24 15 50 54 BF EF 80 81 80
40 | 81 40 71 4F 61 59 45 59 31 59
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 51 35 4C
80 | 30 35 30 31 30 30 30 30 31 0A
90 | 00 00 00 FD 00 32 55 1E 52 0E
100 | 00 0A 20 20 20 20 20 20 00 00
110 | 00 FC 00 56 41 37 30 32 2D 33
120 | 53 45 52 49 45 53 00 91
______________________________________________________________________
(08-09) ID Manufacturer Name ________________ = VSC
(11-10) Product ID Code _____________________ = B51D
(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)
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 - 0.642 Green X - 0.279 Blue X - 0.143 White X - 0.313
Red Y - 0.341 Green Y - 0.610 Blue Y - 0.083 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)
(38-53) Standard Timing Identification:
1280 X 1024 @60Hz
1280 X 960 @60Hz

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1152 X 864 @75Hz
1024 X 768 @85Hz
800 X 600 @85Hz
640 X 480 @85Hz
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:
Q5L050100001
______________________________________________________________________
(90-107) Detailed Timing / Descriptor Block 3:

Monitor Range Limits:
Min Vertical Freq - 50 Hz
Max Vertical Freq - 85 Hz
Min Horiz. Freq - 30 KHz
Max Horiz. Freq - 82 KHz
Pixel Clock - 140 MHz
Secondary GTF - Not Supported
______________________________________________________________________
(108-125) Detailed Timing / Descriptor Block 4:

Monitor Name:
VA702-3SERIES
(126) No Extension EDID Block(s)
(127) CheckSum OK

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 enter
the board through a 6P connector. Other connector on the board is for button board .The VGA cable is a signal cable that contains
video signal, sync signal and DDC signal from PC VGA adapter. This system board consists of 4 functional areas : flat panel
controller, MCU with flash ROM , power regulator .

6.1.1 Flat panel controller… MST8111A (U3)
The heart of the system board is MStart MST8111A. The MST8111A is a graphics processing IC for LCD monitor. It
provides all key IC functions required for LCD panel. On-chip functions include a high-speed triple-ADC , PLL, high scaling
engine, 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

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14.318 MHz crystal is recommended.

b) Analog to Digital Converter:

The MST8111A chip has three ADC's (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.

d) MTV312 Micro controller: The MTV312 micro controller(MCU) serves as the system micro controller. It’s programs the

MST8111A and manages other devices in the system such as the keypad, the backlight, LED, audio and 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, comparator, controlled
duty cycle.

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Oscillator with an active current sense circuit. Desired output voltage are determined by the equation,
Volt = 1.25 ( 1 + R67 / R66), In this case, the output voltage are 3.3 Volts
The AIC1739 is a low dropout positive adjustable regulator with minimum of 300mA output current capability.
So it is well suited for 3.3 V and 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, comparator, controlled duty cycle.

Oscillator with an active current sense circuit. Desired output voltage are determined by the equation,
Volt = 1.25 ( 1 + R85 / R86), In this case, the output voltage are 5.0 Volts for panel power.

6.2 Power(Inverter) Board
This is a specific power(inverter) power board for VA702-3 monitor 40W 12V 3.5A output power and backlight which
converters 12 Vdc to drive four cold cathode fluorescence tubes.

6.2.1 Inverter Electrical specification described as below.

Input

Output

6.2.2 power
This is a general purpose AC / DC adapter which converter 90~240 Vac to a stabilized DC voltage 12 V with rated output
current of 4.16A . Electrical specification described as below.

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

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

1. Main Menu

Press “1” Button (Menu Button) to enter Main Menu:
Press Up Button to the previous page or Down Botton to the next page .
Press “1” Button to exit Main Menu.

(1) Auto Image Adjust Page:

Press “2” Button to do auto image adjust function.
Press “1” Button to exit the page.

(2) Contrast/Brightnes Page:

Press “2” Button to enter Contrast Item.
Press “1” Button to exit the page.

1) Contrast Item

Press Up Button to make contrast high.
Press Down Button to make contrast low.
Press “2” Button to enter Brightness Item.

OSD Function Menu

Press “1” Button to exit the item.

2) Brightness Item

Press Up Button to make brightness high.
Press Down Button to make brightness low.
Press “2” Button to enter Contrast Item.
Press “1” Button to exit the item.

(3) Color Adjust Page:

Press “2” Button to enter Color Adjust page.
Press “1” Button to exit the page.
Press Up Button to the previous item or Down Botton to the next item.

1) sRGB Item

2) 9300K Item

3) 6500K Item

4) 5400K Item

Press “2” Button to select current Item.
Press “1” Button to exit current item.

5) User Color Item

Press “2” Button to enter User Color item.
Press “1” Button to exit User Color item.

Red,Green,Blue Options:

Press “2” Button to switch among the options.
Press “1” Button to exit the options.
Press Up Button to make current option high.

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Press Down Button to make current option low.

(4) Information Page:

Press “2” Button to show the information.
Press “1” Button to exit Information page.

(5) Manual Image Adjust Page:

Press “2” Button to enter Manual Image Adjust page.
Press “1” Button to exit Manual Image Adjust page.
Press Up Button to the previous item or Down Botton to the next item.

1) H./V. Position Item

Press “2” Button to enter H./V. Position item.
Press “1” Button to exit H./V. Position item.

a) Horizontal Position Option:

Press “2” Button to enter the Vertical Position option.
Press “1” Button to exit Horizontal Position option.
Press Up Button to make current option high.
Press Down Button to make current option low

b) Vertical Position Option:

Press “2” Button to enter the Horizontal Position option.
Press “1” Button to exit Vertical Position option.
Press Up Button to make current option high.
Press Down Button to make current option low

2) Horizontal Size Item

Press “2” Button to enter Horizontal Sizeitem.
Press “1” Button to exit Horizontal Size item.
Press Up Button to make current item high.
Press Down Button to make current item low.

3) Fine tune Item

Press “2” Button to enter Fine tune item.
Press “1” Button to exit Fine tune item.
Press Up Button to make current item high.
Press Down Button to make current item low.

4) Sharpness Item

Press “2” Button to enter Sharpness item.
Press “1” Button to exit Sharpness item.
Press Up Button to make current item high.

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Press Down Button to make current item low.

(6) Setup Menu Page:

Press “2” Button to enter Setup Menu page.
Press “1” Button to exit Setup Menu page.
Press Up Button to the previous item or Down Botton to the next item.

1) Language Select Item

Press “2” Button to enter Language Select item.
Press “1” Button to exit Language Select item.
Press Up Button to the previous option or Down Botton to the next
option.

English,French……..Option

Press “2” Button to select the language.
Press “1” Button to exit the option.

2) Resolution Notice Item

Press “2” Button to enter Resolution Notice item.
Press “1” Button to exit Resolution Notice item.

Enable,Disable Option

Press “2” Button to select the option.
Press “1” Button to exit the option
Press Up Button to the previous option or Down Botton to the next
option.

3) OSD Position Item

Press “2” Button to enter OSD Position item.
Press “1” Button to exit OSD Position item.

a) Horizontal Position Option

Press “2” Button to enter the Vertical Position option.
Press “1” Button to exit Horizontal Position option.
Press Up Button to make current option high.
Press Down Button to make current option low

b) Vertical Position Option:

Press “2” Button to enter the Horizontal Position option.
Press “1” Button to exit Vertical Position option.
Press Up Button to make current option high.
Press Down Button to make current option low

4) OSD Time Out Item

Press “2” Button to enter OSD Time Out item.

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Press “1” Button to exit OSD Time Out item.
Press Up Button to make OSD time out long.
Press Down Button to make OSD time out short.

5) OSD Background Item

Press “2” Button to enter OSD Background item.
Press “1” Button to exit OSD Background item.

Enable,Disable Option

Press “2” Button to select the option.
Press “1” Button to exit the option.
Press Up Button to the previous option or Down Botton to the next
option.

(7) Memory Recall Page

Press “2” Button to do the memory recall function.
Press “1” Button to exit the page.

2. Other Menu:
(1) Contrast Dialog

Press Down Button to enter the Contrast Dialog.
Press “1” Button to exit the Contrast Dialog.
Press “2” Button to enter the Brightness Dialog.
Press Up Button to make contrast high.
Press Down Button to make contrast low.

(2) Auto Image Adjust Dialog

Press “2” Button to do the auto image adjust function.

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Function test

(1) Test equipment

Color video Signal & pattern generator (or PC with SXGV resolution )

(2) Test condition

Warm-up at least 30mins is necessary under following condition before function test & alignment :

1. room temperature

2. With full-white screen , RGB , black pattern

3. with cycled display modes.

2. 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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3. Test pattern

Item

1 Frequency & performance Cross-hatch pattern No noise is allow & all color is clear Pattern 1
2 Monitor saturation 16-gray scale pattern 3~4 level need to saturated when

3 RGB color performance RGB color Check the color temperature of

4 Sub-pixel defect RGB color Check the sub-pixel defect Pattern 3,

5 Full white Full white Check the brightness ,CR &

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

Test condition Pattern Specification Remark

brightness & contrast is 100%

RGB signal color

bright pixel defect

Pattern 2

Pattern 3,
4, 5

4 , 5
Pattern 6

Pattern 1 Pattern2

Pattern 3 Pattern4

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Pattern 5 Pattern6

Pattern 7 Pattern 8

Pattern 9

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Firmware update procedure:

T

o PC To

monitor

When you received a received monitor , please check whether the firmware version.
If not , please following procedure to upgrade to the latest version .

1. Equipment needed :

- VA702/b-3

- PC ( Personal computer )

- LPT cable

- Fixture (LM5ISP)

- Firmware upgrade program

2. Connection :

Print port Fixture

VA702/b- LPT cable

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

2.1 After installation , we could find the shortcut in the setting path or the program bar ( default setting ) , see Fig 2.1 .

2.2 Security file is a key to use ISP function , press “ 確定 “ button , see Fig 2.2 .

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2.3 The warning is used to remind user of that different CPU rate may cause ISP function fail .

(it’s limited by IIC protocol ) , press “ 確定 “ button , see Fig 2.3 .

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

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2.7 Fig 2.7 shows the setting for security code of software ISP . it needs 2 command No. and key in command sequentially for

7C , 4C , 77. The command No. and command must be set by user while coding. About the detailed of setting ,
please refer to section 6 boot code of ISP .

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3. Use ISP to program MCU

3.1 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

3.2 If user change the MTV type , it must load file again , or the buffer of load file will be cleared .

3.3 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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4. Use ISP to read MCU content

4.1 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 “RUN” button , the

MCU content will show as Fig4.1

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5 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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Packing procedure

Power cord

QSG

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

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

Figure.1 Figure.2

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

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

(Figure 3) (Figure 4)

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Disassemble monitor

2.1 Take off the hinge caps (Figure 5)

2.2 Lay VA702/b-3 down & take off the screws to remove the base (Figure 6)

(Figure 5) (Figure 6)

2.3 Remove the screw cover (Figure 7)

2.4 Take of the screws (Figure 8)

Figure 7 Figure 8

2.5 Remove the back cover (Figure 9)

2.6 Take off the screw on the VGA cable (Figure 10)

Figure 9 Figure 10

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

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

Figure 11 Figure 12

2.9 Tear off the AL-foil , all cables on M/B & lamp wires . (Figure 13)

2.10 Take off the screws on the PCB holder & remove the PCB holder with the boards . (Figure 14)

Figure 13 Figure 14

2.11 Take out the screws on M/B & remove the cable between M/B & power board (Figure 15)

2.12 Remove the M/B out (Figure 16)

Figure 15 Figure 16

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2.13 Put the PCB holder up-side-down & remove the screws on the power board (Figure 17)

2.14 Remove the power board (Figure 18)

Figure 17 Figure 18

2.15 Separate the bezel & panel (with BKT) & remove the cable on panel (Figure 19)

2.16 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

Serial No. Prefix: Q5K

Rev: 1a

Accessories:

Documentation:

Components:

Miscellaneous:

ViewSonic Model Number: VLCDS27998-3W

RECOMMENDED SPARE PARTS LIST (VA702-3)

RECOMMENDED SPARE PARTS LIST (VA702b-3)

ViewSonic Model Number: VLCDS27998-4W

Item ECR/ECN ViewSonic P/N Ref. P/N Location Universal number# Q'ty

1
2 ADP/INV,SLV0315A0450-1057,90~264V REV1A B-00000936 AS05B310202 power board 1

PC Board

3 MAIN BOARD (MST8111A) GP B-00005786 1SL7VCMB066 main board 1

Assembly:

4 L7VC (BUTTON/B ASSY) CONTROL BOARD B-00005787 1SL7VCBB001 button board 1
5 ADP/INV ADP-40AFA, 90~264V REV1A B-SB-0221-0686 AS020126104 power board 1
6 L7VC-A2(702) FRONT PANEL C-00005788 34L7VCLB008 front bezel assembly 1

Cabinets:

7 L7VC BACK COVER ASSY(BLACK) C-BC-0302-0576 37L7VBCVS46 back cover assembly 1
8 L7VC STAND ASSY(BLACK) C-BS-0303-0509 26L7VSAVS25 stand 1
9 CABLE ASSY L7VC MB-VGA(14/15P,REV1A) GP CB-00000182 DDL7VCPC001 VGA cable 1

Cables:

10 CABLE L7VC BUTTON-MB(8P/10P,REV1A) GP CB-00002262 DDL7VCTH004 Button-MB cable 1
11 CABLE ASSY L7VC POWER-MB(8P/8P,REV1A) GP CB-00002263 DDL7VCPB101 Power-MB 1
12 CABLE MB-LCD(30P,100MM,LINKTEC)L9ZA GP CB-00005785 DDL9ZALC005 MB-LCD cable 1
13

Electronic

14
15 HINGE CAP L7VC(EBL7V023,REV3A)GP M-MS-0808-7306 EBL7V023017 hinge cap 1

Hardware:

16 SCREW M3.5*8-B (NI,WASHER)GP M-SCW-0824-6799 MM35080BBW2 Power/B grounding 1
17 SCREW M3.0*6.0-I(NI) GP M-SCW-0824-6800 MM30060IBJ8 PCBAs to metal shielding 7
18 SCREW M3.0*4.0-I(NI) GP M-SCW-0824-6802 MM30040IBJ9 panel to L/R bracket 10

Packing Material:

19 EPE BAG L7V(HAL7V001,REV3A)GP M-MS-0808-8981 HAL7V001012 EPE bag 1
20 CARTON (VA702-3) L7VC-A2(HFL7VC04,R3A)GP P-00005790 HFL7VC04010 carton 1
21 END CAP(L) L7VC(HBL7V005,REV3B)GP P-FM-0602-0840 HBL7V005019 cushion 1
22 END CAP(R) L7VC(HBL7V006,REV3B)GP P-FM-0602-0841 HBL7V006015 cushion 1
23
24

Plastics:

Remark 1:
Remark 2:

Description

POWER CORD SP-305+IS-14 3P 1.8M(TWN)B GP A-00003642 DM33T181004 power cord 1

USER GUIDE (VA702B-3) L7VC-A2(HGL7VC07,3A)GP DC-00005789 HGL7VC07010 user guide 1

LCD PANEL QD17EL07 REV:11(04,05,P4)8MS SXGA GP E-00005784 AA17EL070A2 LCD panel 1

LCD FILM L7VC(JXL7V003,REV3B)GP M-MS-0808-7399 JXL7V003017 LCD F film 1
RUBBER FOOT L5VC(GAL5V002,REV3A) GP M-MS-0808-9251 GAL5V002013 Rubber foot 1

Above listed items are examples, supplier can expand the rows to add more necessary items.
All revised RSPLs with newly added items or any change made should be highlighted and correlated with the ECN/ECR approved by ViewSonic Corporation. This is to eliminate
repeated cross checks of each item between this version and prior versions.

Serial No. Prefix: Q5L Rev: 1a

Item ECR/ECN ViewSonic P/N Ref. P/N Location Universal number# Q'ty

Accessories:

1

PC Board

2 ADP/INV,SLV0315A0450-1057,90~264V REV1A B-00000936 AS05B310202 power board 1

Assembly:

3 L7VC M/B ASSY(MST8111A) GP B-00005786 1SL7VCMB066 main board 1
4 L7VC BUTTON/B ASSY GP B-00005787 1SL7VCBB001 button board 1
5 ADP/INV ADP-40AFA, 90~264V REV1A B-SB-0221-0686 AS020126104 power board 1

Cabinets:

6 L7VC-A2(702) LCD BEZEL SUB ASSY(B) C-00005793 34L7VCLB016 front bezel assembly 1
7 L7VC BACK COVER ASSY C-BC-0302-0575 37L7VBCVS38 back cover assembly 1

Cables:

8 CABLE ASSY L7VC MB-VGA(14/15P,REV1A) GP CB-00000182 DDL7VCPC001 VGA cable 1

9 CABLE L7VC BUTTON-MB(8P/10P,REV1A) GP CB-00002262 DDL7VCTH004 Button-MB cable 1
10 CABLE ASSY L7VC POWER-MB(8P/8P,REV1A) GP CB-00002263 DDL7VCPB101 Power-MB 1
11 CABLE MB-LCD(30P,100MM,LINKTEC)L9ZA GP CB-00005785 DDL9ZALC005 MB-LCD cable 1

Documentation:

12

Electronic

13

Hardware:

14 HINGE CAP L7VC(EBL7V023,REV3A)GP M-MS-0808-7306 EBL7V023017 hinge cap 1
15 SCREW M3.5*8-B (NI,WASHER)GP M-SCW-0824-6799 MM35080BBW2 Power/B grounding 1
16 SCREW M3.0*6.0-I(NI) GP M-SCW-0824-6800 MM30060IBJ8 PCBAs to metal shielding 7
17

Miscellaneous:

18

Packing Material:

19 EPE BAG L7V(HAL7V001,REV3A)GP M-MS-0808-8981 HAL7V001012 EPE bag 1
20 CARTON (VA702B-3) L7VC-A2(HFL7VC05,3A)GP P-00005794 HFL7VC05016 carton 1
21 END CAP(L) L7VC(HBL7V005,REV3B)GP P-FM-0602-0840 HBL7V005019 cushion 1
22 END CAP(R) L7VC(HBL7V006,REV3B)GP P-FM-0602-0841 HBL7V006015 cushion 1

Plastics:

23 RUBBER FOOT L5VC(GAL5V002,REV3A) GP M-MS-0808-9251 GAL5V002013 Rubber foot 1
24 L7VC STAND ASSY C-BS-0303-0506 26L7VSAVS17 stand 1

Remark 1:
Remark 2:

Description

POWER CORD SP-305+IS-14 3P 1.8M(TWN)B GP A-00003642 DM33T181004 power cord 1

QSG+CD (VA702B-3) L7VC-A2(HGL7VC07,3A)GP DC-00005789 HGL7VC07010 user guide 1
LCD QD17EL07 REV:11(04,05,P4)8MS SXGA GP E-00005784 AA17EL070A2 LCD panel 1

SCREW M3.0*4.0-I(NI) GP
LCD FILM L7VC(JXL7V003,REV3B)GP M-MS-0808-7399 JXL7V003017 LCD F film 1

Above listed items are examples, supplier can expand the rows to add more necessary items.
All revised RSPLs with newly added items or any change made should be highlighted and correlated with the ECN/ECR approved by ViewSonic Corporation. This is to eliminate
repeated cross checks of each item between this version and prior versions.

M-SCW-0824-6802

MM30040IBJ9

panel to L/R bracket 10

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ViewSonic Model Number: VLCDS27998-3W

DM33T181004

POWER CORD SP-305+IS-14 3P 1.8M(TWN)B GP

BOM LIST (VA702-3)

Rev: 1a

Serial No. Prefix: Q5K

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

1 N/A 1L7VCAXVS04 L7VC-A2 LCD MONITOR(VA702-3,TWN)S/B
2 B-MB-0201-2765 29L7VMB00A8 L7VC M/B ASSY(QDI)LVDS 1
3 N/A 3BL7VSS0068 L7VC M/B S/S ASSY(QDI)LVDS 1
4 N/A CC62204MD23 CAP EC 22U 25V(+-20%,105C,5*11,2KHR)GP C17,C25,C28,C30,C33,C36,C49,C70 8
5 N/A CC73303MD51 CAP EC 330U 16V(+-20%,105C,8*11,LESR)GP C58,C62,C79,C90 4
6 E-L-0407-1563 DC04725K002 CHOKE COIL 47UH(2.5A,+-10%,T07473) L21,L32 2
7 M-MS-0808-9809 DFHD30MR259 CONN DIP HEADER 30P 2R MR(P2.0,H4.0) CN9 1
8 N/A DFHD14MS264 CONN DIP HEADER 14P 2R MS(P2.0,H6.0) CN2 1

9 M-MS-0808-9810 DFHD10MR316 CONN DIP HEADER 10P 1R MR(P2.0,H4.1) CN4 1
10 N/A DFHD08MS439 CONN DIP HEADER 8P 2R MS(P2.54,H6.0) CN6 1
11 N/A BG611059319 CRYSTAL DIP 11.0592MHZ(+-30PPM,49/US) X2 1
12 E-X-0415-0128 BG614318D55 XTAL DIP 14.318MHZ(+-30PPM,07010-X-136-2 X1 1
13 B-CB-0206-0170 23L7VBB0026 L7VC BUTTON/B ASSY 1
14 N/A DFHD08MR301 CONN DIP HEADER 8P 1R MR(P2.0,H4.1) CN1 1
15 N/A BEYG0013DA3 LED(DIP) YELLOW/GREEN(L-3WYGW) LED1 1
16 N/A DAL7VCTB1C5 PCB(BUTTON) L7VC TL(1L,125*23,REVC) 1
17 N/A DHP0002B205 SWITCH PUCH BUTTON(PT-002-B2,50MA,12V)GP SW1,SW2,SW3,SW4,SW5 5
18 B-SB-0221-0686 AS020126104 ADP/INV ADP-40AFA, 90~264V REV1A 1
19 B-00000936 AS05B310202 ADP/INV,SLV0315A0450-1057,90~264V REV1A 1
20 N/A 24L7VCLB016 L7VC-A2(702) LCD BEZEL ASSY(S/B) 1
21 C-00005788 34L7VCLB008 L7VC-A2(702) LCD BEZEL SUB ASSY(S/B) 1
22 C-BC-0302-0576 37L7VBCVS46 L7VC BACK COVER ASSY(BLACK) 1
23 M-BK-0805-0059 34L7VBAVS00 L7VC PCB BKT ASSY 1
24 M-BK-0805-0127 FAL7V016010 LCD BKT-L-QDI L7VC(FAL7V016,REV3B)GP 1
25 M-BK-0805-0128 FAL7V017016 LCD BKT-R-QDI L7VC(FAL7V017,REV3B)GP 1
26 M-MS-0808-8984 FCL70004010 LCD MYLAR L70L-E(FCL70004,REV3A)GP 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)GP 1
29 M-MS-0808-9249 JXLM7002011 FOIL LM7S(JXLM7002,REV3B)GP 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)GP 1
32 M-SCW-0824-6799 MM35080BBW2 SCREW M3.5*8-B (NI,WASHER)GP 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)GP 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(R3A)GP 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)GP 2
39 M-MS-0808-9236 GAL7V008017 RUBBER PLUG VESA/BK L7VC(GAL7V008,R3B)GP 4
40 N/A FCL7C003014 PANEL MYLAR UP L7C(FCL7C003,REV3A)GP 1
41 PL-00001804 GAL70002015 RUBBER-HOLDER L70L(GAL70002,REV3B)GP 1
42 N/A GAL7VC01016 RUBBER/PANEL L7VC(GAL7VC01,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) GP 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) GP 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
51 CB-00002263 DDL7VCPB101 CABLE ASSY L7VC POWER-MB(8P/8P,REV1A) 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-00005785 DDL9ZALC005 CABLE MB-LCD(30P,100MM,LINKTEC)L9ZA GP 1
55 M-MS-0808-7306 EBL7V023017 HINGE CAP L7VC(EBL7V023,REV3A)GP 2
56 HW-00001510 MM40100BCI2 SCREW M4*10.0-B(NI,NYLOK)GP 4
57 N/A 2AL7VCPTQ18 L7VC-A2 PANEL DEPENDENT KIT(QDI)8MS 1
58 E-00005784 AA17EL070A2 LCD QD17EL07 REV:11(04,05,P4)8MS SXGA GP 1
59 N/A AZL7VCBQ021 L7VC-A2 SW BIOS IMAGE(MST8111A)QDI 1
60 N/A 28L7VCPK001 L7VC-A2(VA702/B-3) PACKING ASSY 1
61 M-MS-0808-7399 JXL7V003017 LCD FILM L7VC(JXL7V003,REV3B)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
65 M-LB-0813-0747 HCL7V004013 CORE LABEL(HCL7V004,REV3A)GP 1
66 M-LB-0813-0745 HCL7V002011 SERIAL LEBAL L7V(HCL7V002,REV3A) GP 1
67 N/A HCL9V008014 CARTON LABEL(3) L9VD(HCL9V008,REV3A)GP 1
68 DC-00005789 HGL7VC07010 QSG+CD (VA702B-3) L7VC-A2(HGL7VC07,3A)GP 1
69 PL-00005198 JXLM5003011 HANDLE LM5S(JXLM5003,REV 3B) GP 1
70 N/A HFL7V009018 SPACE PLATE L7VC(HFL7V009,REV3B)GP 0.028
71 M-LB-0813-1043 HCL70021011 HI-POT LABEL L70L(HCL70021,REV3A)GP 1
72 N/A HCL7VC08012 ID LABEL(VA702-3)L7VC-A2(HCL7VC08,R3A)GP 1
73 P-00005790 HFL7VC04010 CARTON (VA702-3) L7VC-A2(HFL7VC04,R3A)GP 1
74 M-MS-0808-8981 HAL7V001012 EPE BAG L7V(HAL7V001,REV3A)GP 1
75 A-00003642

1

ViewSonic Corporation Confidential - Do Not Copy VA702-3_VA702b-3

43

BOM LIST (VA702b-3)

ViewSonic Model Number: VLCDS27998-4W
Rev: 1a

Serial No. Prefix: Q5L

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

1 N/A 1L7VCAXVS12 L7VC-A2 LCD MONITOR(VA702B-3,TWN)B
2 B-MB-0201-2765 29L7VMB00A8 L7VC M/B ASSY(QDI)LVDS 1
3 N/A 3BL7VSS0068 L7VC M/B S/S ASSY(QDI)LVDS 1

4

N/A CC62204MD23 CAP EC 22U 25V(+-20%,105C,5*11,2KHR)GP
5 N/A CC73303MD51 CAP EC 330U 16V(+-20%,105C,8*11,LESR)GP C58,C62,C79,C90 4
6 E-L-0407-1563 DC04725K002 CHOKE COIL 47UH(2.5A,+-10%,T07473) L21,L32 2
7 M-MS-0808-9809 DFHD30MR259 CONN DIP HEADER 30P 2R MR(P2.0,H4.0) CN9 1
8 N/A DFHD14MS264 CONN DIP HEADER 14P 2R MS(P2.0,H6.0) CN2 1
9 M-MS-0808-9810 DFHD10MR316 CONN DIP HEADER 10P 1R MR(P2.0,H4.1) CN4 1

10 N/A DFHD08MS439 CONN DIP HEADER 8P 2R MS(P2.54,H6.0) CN6 1
11 N/A BG611059319 CRYSTAL DIP 11.0592MHZ(+-30PPM,49/US) X2 1
12 E-X-0415-0128 BG614318D55 XTAL DIP 14.318MHZ(+-30PPM,07010-X-136-2 X1 1
13 B-CB-0206-0170 23L7VBB0026 L7VC BUTTON/B ASSY 1
14 N/A DFHD08MR301 CONN DIP HEADER 8P 1R MR(P2.0,H4.1) CN1 1
15 N/A BEYG0013DA3 LED(DIP) YELLOW/GREEN(L-3WYGW) LED1 1
16 N/A DAL7VCTB1C5 PCB(BUTTON) L7VC TL(1L,125*23,REVC) 1
17 N/A DHP0002B205 SWITCH PUCH BUTTON(PT-002-B2,50MA,12V)GP SW1,SW2,SW3,SW4,SW5 5
18 B-SB-0221-0686 AS020126104 ADP/INV ADP-40AFA, 90~264V REV1A 1
19 B-00000936 AS05B310202 ADP/INV,SLV0315A0450-1057,90~264V REV1A 1
20 N/A 24L7VCLB024 L7VC-A2(702) LCD BEZEL ASSY(B) 1
21 C-00005793 34L7VCLB016 L7VC-A2(702) LCD BEZEL SUB ASSY(B) 1
22 C-BC-0302-0575 37L7VBCVS38 L7VC BACK COVER ASSY 1
23 M-BK-0805-0059 34L7VBAVS00 L7VC PCB BKT ASSY 1
24 M-MS-0808-9249 JXLM7002011 FOIL LM7S(JXLM7002,REV3B)GP 1
25 M-BK-0805-0127 FAL7V016010 LCD BKT-L-QDI L7VC(FAL7V016,REV3B)GP 1
26 M-BK-0805-0128 FAL7V017016 LCD BKT-R-QDI L7VC(FAL7V017,REV3B)GP 1
27 M-MS-0808-8984 FCL70004010 LCD MYLAR L70L-E(FCL70004,REV3A)GP 1
28 M-MS-0808-9248 FCL7A001014 AL FOIL L7A(FCL7A001,REV3A) GP 2
29 M-MS-0808-7302 FCL7V012016 P/B MYLAR-DOWN L7VC(FCL7V012,REV3A)GP 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)GP 1
32 M-SCW-0824-6799 MM35080BBW2 SCREW M3.5*8-B (NI,WASHER)GP 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)GP 2
35 M-SCW-0824-6802 MM30040IBJ9 SCREW M3.0*4.0-I(NI) GP 10
36 M-CV-0830-0284 GAL7V009013 RUBBER PLUG COVER L7VC(GAL7V009,REV3A)GP 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)GP 2
39 M-MS-0808-9237 GAL7V006014 RUBBER PLUG VESA L7VC(GAL7V006,REV3D)GP 4
40 N/A FCL7C003014 PANEL MYLAR UP L7C(FCL7C003,REV3A)GP 1
41 PL-00001804 GAL70002015 RUBBER-HOLDER L70L(GAL70002,REV3B)GP 1
42 N/A GAL7VC01016 RUBBER/PANEL L7VC(GAL7VC01,REV3A) GP 1
43 C-BS-0303-0506 26L7VSAVS17 L7VC STAND ASSY 1
44 C-BS-0303-0562 EAL7V014017 BASE L7VC(EAL7V014,REV3A) GP 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) GP 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
51 CB-00002263 DDL7VCPB101 CABLE ASSY L7VC POWER-MB(8P/8P,REV1A) 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-00005785 DDL9ZALC005 CABLE MB-LCD(30P,100MM,LINKTEC)L9ZA GP 1
55 M-MS-0808-7306 EBL7V023017 HINGE CAP L7VC(EBL7V023,REV3A)GP 2
56 HW-00001510 MM40100BCI2 SCREW M4*10.0-B(NI,NYLOK)GP 4
57 N/A 2AL7VCPTQ18 L7VC-A2 PANEL DEPENDENT KIT(QDI)8MS 1
58 E-00005784 AA17EL070A2 LCD QD17EL07 REV:11(04,05,P4)8MS SXGA GP 1
59 N/A AZL7VCBQ021 L7VC-A2 SW BIOS IMAGE(MST8111A)QDI 1
60 N/A 28L7VCPK001 L7VC-A2(VA702/B-3) PACKING ASSY 1
61 M-MS-0808-7399 JXL7V003017 LCD FILM L7VC(JXL7V003,REV3B)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
65 M-LB-0813-0747 HCL7V004013 CORE LABEL(HCL7V004,REV3A)GP 1
66 M-LB-0813-0745 HCL7V002011 SERIAL LEBAL L7V(HCL7V002,REV3A) GP 1
67 N/A HCL9V008014 CARTON LABEL(3) L9VD(HCL9V008,REV3A)GP 1
68 DC-00005789 HGL7VC07010 QSG+CD (VA702B-3) L7VC-A2(HGL7VC07,3A)GP 1
69 PL-00005198 JXLM5003011 HANDLE LM5S(JXLM5003,REV 3B) GP 1
70 N/A HFL7V009018 SPACE PLATE L7VC(HFL7V009,REV3B)GP 0.028
71 M-LB-0813-1043 HCL70021011 HI-POT LABEL L70L(HCL70021,REV3A)GP 1
72 N/A HCL7VC09019 ID LABEL(VA702B-3)L7VC-A2(HCL7VC09,3A)GP 1
73 P-00005794 HFL7VC05016 CARTON (VA702B-3) L7VC-A2(HFL7VC05,3A)GP 1
74 M-MS-0808-7710 HAL7E002013 PE BAG L7E(HAL7E002,REV3C)GP 1
75

A-00003642 DM33T181004 POWER CORD SP-305+IS-14 3P 1.8M(TWN)B GP

C17,C25,C28,C30,C33,C36,
C49,C70

8

1

ViewSonic Corporation Confidential - Do Not Copy VA702-3_VA702b-3

44

8. Exploded Diagram and Exploded Parts List

ViewSonic Corporation

45

Confidential - Do Not Copy

VA702-3_VA702b-3

ViewSonic Corporation

Model

Title

Date Rev:

Exploded diagram

EXPLODED PARTS LIST (VA702-3)

ViewSonic Model Number: VLCDS27998-3W
Rev: 1a

Serial No. Prefix: Q5K

Item ViewSonic P/N Ref. P/N Description Q'ty

1 B-MB-0201-2765 29L7VMB00A8 L7VC M/B ASSY 1
2 B-SB-0221-0686 AS020126104 ADP/INV ADP-40AFB, 90-264VAC 1
3 B-CB-0206-0170 23L7VBB0026 L7VC BUTTON/B ASSY 1
4 N/A EAL7V012049 LCD BEZEL 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-0830-2616 EAL7V013011 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 PL-00001507 EBL7V005011 LOGO PLATE ELLIPSE L7VC 1
14 M-MS-0808-9236 GAL7V008017 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-00005784 AA17EL070A2 LCD(TFT) QDI QD17EL07 V11 1
22 M-BK-0805-0080 FAL7V012014 LCD BKT-L L7VC 1
23 M-BK-0805-0129 FAL7V013011 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-0830-0283 GAL7V010011 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 CB-00002261 DDL7VXLC004 CABLE ASSY L7VX MB-LCD, 30P 1
42 M-MS-0808-7306 EBL7V023017 HINGE CAP L7VC 2
43 HW-00001510 MM40100BCI2 SCREW M4*10.0-B(NI,NYLOCK) 4
44 N/A HCL7VC09019 ID LABEL 1
45 M-LB-0813-0745 HCL7V002011 SERIAL LABEL 1
46 M-MS-0808-7399 JXL7V003017 LCD FILM L7VC 1
47 M-SCW-0824-6800 MM30060IBJ8 SCREW M3.0*6.0-I(NI) 4

ViewSonic Corporation Confidential - Do Not Copy VA702-3_VA702b-3

46

EXPLODED PARTS LIST (VA702b-3)

ViewSonic Model Number: VLCDS27998-4W
Rev: 1a

Serial No. Prefix: Q5L

Item ViewSonic P/N Ref. P/N Description Q'ty

1 N/A 29L7VMB02X9 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 C-FP-0301-1066 EAL7V012014 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-0830-2616 EAL7V013011 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 M-MS-0808-8718 EBL7V003016 LOGO PLATE ELLIPSE L7VC 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 V9 1
22 M-BK-0805-0080 FAL7V012014 LCD BKT-L L7VC 1
23 M-BK-0805-0129 FAL7V013011 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-0303-0563 EAL7V014025 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-00002362 DDL7VBCTH004 CABLE ASSY L7VC BUTTON-MB 1
41 CB-00002261 DDL7VXLC004 CABLE ASSY L7VX MB-LCD, 30P 1
42 M-MS-0808-7306 EBL7V023017 HINGE CAP L7VC 2
43 HW-00001510 MM40100BCI2 SCREW M4*10.0-B(NI,NYLOCK) 4
44 N/A HCL7VC08012 ID LABEL 1
45 M-LB-0813-0745 HCL7V002011 SERIAL LABEL 1
46 M-MS-0808-7399 JXL7V003017 LCD FILM L7VC 1
47 M-SCW-0824-6800 MM30060IBJ8 SCREW M3.0*6.0-I(NI) 4

ViewSonic Corporation Confidential - Do Not Copy VA702-3_VA702b-3

47

PACKING PART LIST ( VA702-3 / VA702b-3 )

ViewSonic Model Number: VLCDS27998-3W/4W
Rev: 1a

Item ViewSonic P/N Ref. P/N Location Q'ty

1 N/A 1L7VCAXVS12 VA702b-3 1
2 P-FM-0602-0840 HBL7V005019 END CAP (L) 1
3 P-FM-0602-0841 HBL7V006015 END CAP (R) 1
4 DC-00005789 HGL7VC07010 QSG+CD 1
5 A-00005252 DM333181G97 POWER CORD 3P 1.8M 1
6 N/A HFL7VC05016 CARTON (VA702B-3) 1
7 N/A HCL9V008014 CARTON LABEL(3) 1
8 M-MS-0808-7710 HAL7E002013 PE BAG 1

ViewSonic Corporation

Confidential - Do Not Copy

48VA702-3_VA702b-3

49

9. Block Diagram

1. System block

LVDS1+ / LVDS1-

Backlight

17” Panel

CLK+ / CLK-

LVDS2+ / LVDS2-

Switch

Si2301DS

5V

Board

Power

12V

Inverter

Control

Backlight

ON/OFF

DDC -SCL

HSYNC / VSYNC

DDC -SDA

Interface

Triple ADC

AR , AG, AB

RGB

Analog

Panel

Interface

MST8111A

Gen.

Clock

Crystal

14.318MHz

Panel

Interface

Host

SCL/SDA

EEPROM

Control

RST

24C08

Interface

IRQ

CPU

MTV312V64

ISP

Brightness

CSZ

Keypad

Crystal

11.0592MHz

ViewSonic Corporation Confidential - Do Not Copy VA702-3_VA702b-3

50

2. Power

12V

12V

5V

MC34063

2.5V

AIC1739

MC34063

3.3V

ViewSonic Corporation Confidential - Do Not Copy VA702-3_VA702b-3

10. Schematic Diagrams

+3.3V+2.5V

LVDS

PC
VGA

ANALOG RGB

+3.3V

EEPROM
24LC16

DDC

SCALAR
MST8111A

+3.3V+3.3V

MICRO-CONTR
MTV312

OLLER

+5.0V

POWER

LCDPWR_ON5.0V

QDI LCD
PANEL(17
LVDS)

LCDVCC

AC 100-240Vac

ViewSonic Corporation

Confidential - Do Not Copy

BRIGHTNESS

INVCTRL

AUDIO_VOLUME

POWER INVERTER
AND AUDIO BOARD

51VA702-3_VA702b-3

AUDIO_MUTE

+12V

34063

34063

+3.3V

+5.0V

AIC1739

+2.5V

ViewSonic Corporation

Model

Title

Date Rev:

BLOCK DIAGRAM

52

DAN217K/NC

RED+IN

D2

3

GND

IN-H

VGA_CON_O

VGA_SCL_O

VDD3V3

12

CN1

DDC-SDA

IN-H

IN-V

DDC-SCL

1617

11

12

13

14

15

1
6
2
7
3
8
4
9
5
10

VGA/NC

RED-IN
GREEN-IN GREEN+IN
BLUE-IN

DAN217K/NC

GREEN+IN BLUE+IN

1
3
5
7

9
11
13

D3

3

CN2

2

+

+

4

+

+

6

+

+

8

+

+

10

+

+

12

+

+

14

+

+

VGA INPUT

12

VGA_SDA_O

DSUB_5V_O

VGA_CON_O

VGA_SCL_O

RED+IN

BLUE+IN
GND
IN-V
VGA_SDA_O
DSUB_5V_O

DAN217K/NC

D4

3

L1 100/6

L35 0/6

L36 100/6/NC

L5 100/6

12

IN-H IN-V VGA_SDA_O VGA_SCL_O

D5

Z5.6/NC

2 1

D6

Z5.6/NC

2 1

D7

Z5.6/NC

2 1

RED+IN

GREEN+IN
GREEN-IN
BLUE+IN
BLUE-IN

VGA_CON_O

D8

Z5.6/NC

2 1

DSUB_5V

Z5.6/NC

D32

SDA-VGA 5

VGA_CON 5

SCL-VGA 5

2 1

SOT23

DSUB_5V

C12

0.1U/6/NC

U1

1

NC

2
3
4 5

VCC

NC

VCLK

NC

SCK

VSS SDA

24LC21/NC

L2 FCM 1608C-300T06 (BULL WILL)

RED+IN

R2

132

VDD3V3

R107

8
7
6

2K/6/NC

R109
0/6/NC

2 1

RED-INRED-IN

GREEN+IN

GREEN-IN

BLUE+IN

BLUE-IN

D1

BAT54C-GS08/NC

R16

R17

2K/6/NC

2K/6/NC

D9

Z5.6/NC

Z5.6/NC

2 1

75/6/F

L3 FCM 1608C-300T06 (BULL WILL)

R5

75/6/F

L6 FCM 1608C-300T06 (BULL WILL)

R9

75/6/F

DDC_VS

SCL-VGA
SDA-VGA

D10

DDC_VS 5

C2

NC

C5

NC

C9

NC

IN-H

R13 100/ 6

IN-V

L7 100/6

R1 33/6

R3 68/6

R4 33/6

R6 68/6

R7 100/6

R8 33/6

R10 68/6

R12

2K/6

DDC_VS

R15

2K/6

VCC-DDC

C11

33P/6

C13

33P/6

C1 0.047u/6

C3 0.047u/6

C4 0.047u/6

C6 0.047u/6

C7 0.01U/6

C8 0.047u/6

C10 0.047u/6

R11 100/6

R14 100/6

VDD3V3

HSYNC

VSYNC

RED+ 4

RED- 4

GREEN+ 4

GREEN- 4

SOGIN 4

BLUE+ 4

BLUE- 4

HSYNC 4

VSYNC 4

CN3

25

RX2-

RX2+

GND
RX4-

RX4+

SCL
SDA

VS

RX1-

RX1+

GND
RX3-

RX3+

5V

GND

HP

RX0-

RX0+

GND
RX5-

RX5+

GND

RXC+

RXC-

26

DVI-D/NC

D11

BAT54C-GS08/NC

Z5.6/NC

TX2­TX2+

TX1­TX1+

TX0-

TX0+

TXC+
TXC-

R26

10K/6NC

TX2- 4
TX2+ 4

TX1- 4
TX1+ 4

TX0- 4
TX0+ 4

TXC+ 4
TXC- 4

C14

0.1U/6/NC

U2

1

NC

2
3
4 5

VCC

NC

VCLK

NC

SCK

VSS SDA

M24C02/NC

R20

R21

2K/6/NC

D16

Z5.6/NS

2K/6/NC

R22 100/6/NC

R23 100/6/NC

D17

Z5.6/NS

2 1

SCL-DDDC
SDA-DDDC

8
7
6

2 1

ViewSonic Corporation

Model

VGA AND TMDS INPUT

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

SCL-DDDC
SDA-DDDC

VCC-DDC

R24 10K/6NC
R25 10K/6NC

C16
1U/6NC D19

D18

Z5.6/NC

2 1

HP-MCU 5

C15

0.1U/6NC

D12

Z5.6/NC

2 1

D14

Z5.6/NC

2 1

Z5.6/NC

2 1

2 1

2 1

2 1

D13

Z5.6/NC

D15

Z5.6/NC

D20

Z5.6/NC

2 1

D21

Z5.6/NC

D22

2 1

Title

Date Rev:

ViewSonic Corporation

Confidential - Do Not Copy

VA702-3_VA702b-3

53

VPLL VDPLL

VAD VDVI VDD

55

35

45351

U3

X1

63
62
60
59
61
58
57
37
38
29
28

40
41
43
44
46
47
49
50
52

66

67

69
71
70
32
72
30
31

73
74

33

34

RED+3
RED-3

GREEN+3
GREEN-3
SOGIN3

BLUE+3
BLUE-3

HSYNC3
VSYNC3

TX2+3
TX2-3
TX1+3
TX1-3
TX0+3
TX0-3
TXC+3
TXC-3

VDVI

CSZ5

SCL5

SDA5

RESET5

INT5

0.1u/6/NC

12

12

C96

C97

0.1u/6/NC

10K/NC

BRIGHTNESS5

XTAL5

R27 390/1%

C35

0.1U/6

R28 100/6
R29 100/6

R51 22/6

12

C98

R110

0.1u/6/NC

C41

12

22P/6

14.318MHz

C42

12

22P/6

C43 0.1U/6

65

AVDD

AVDD

RIN0
RIN0M
GIN0
GIN0M
SOGIN0
BIN0
BIN0M
HSYNC0
VSYNC0
DDC1_CLK/GPO8
DDC1_DAT/GPO7

R+
R­G+
G­B+
B­CK+
CK­REXT

REFP

REFM

CSZ
SCL
SDA
HWRESETZ
INT
DDCROM_CLK/GPO6
DDCROM_DAT/GPO5

PWM0
PWM1

XIN

XOUT

BYPASS
AVSS_LPLL

AVDD_DVI

AVDD_DVI

AVDD_MPLL

VPO

11218494104

53

VDDP

VDDP

VDDP

VDDP

VDDP

AVDD_PLL

MST8111A

Dual Input

114

126188797117

VDDP

VDDP

VDDC

VDDC

VDDC

VDDC

CLKAN

CLKBN

RA0P
RA0N
RA1P
RA1N
RA2P
RA2N
RA3P
RA3N

GA1P
GA1N
GA2P
GA2N
GA3P
GA3N

BA1P

BA1N

BA2P

BA2N

BA3P

BA3N

CLKAP

RB1P
RB1N

RB2P
RB2N

RB3P
RB3N
GB0P
GB0N
GB1P
GB1N
GB2P
GB2N
GB3P
GB3N

BB0P

BB0N

BB1P

BB1N

BB2P

BB2N

BB3P

BB3N

CLKBP

ESP

OSP

EINV

OINV

GPO0
GPO1
GPO2
GPO3
GPO4

106
107
108
109
110
111
112
113

98
99
100
101
102
103

88
89
90
91
92
93
118
119

16
17
22
23
24
25
6
7
8
9
12
13
14
15
122
123
124
125
128
1
4
5
120
121

75
76
77
78

83
82
81
80
79

PA2
PA3
PA4
PA5
PA6
PA7

PA10
PA11
PA12
PA13
PA14
PA15

PA18
PA19
PA20
PA21
PA22
PA23
PA24
PA25

PB2
PB3
PB4
PB5
PB6
PB7

PB10
PB11
PB12
PB13
PB14
PB15

PB18
PB19
PB20
PB21
PB22
PB23
PB24
PB25

ESP
OSP

OINV

GPO0
GPO1
GPO2
GPO3
GPO4

FB2P 6
FB2N 6
FB1P 6
FB1N 6
FB0P 6
FB0N 6

FG2P 6
FG2N 6
FG1P 6
FG1N 6
FG0P 6
FG0N 6

FR2P 6
FR2N 6
FR1P 6
FR1N 6
FR0P 6
FR0N 6
FCLKP 6
FCLKN 6

BB0N 6
BB0P 6
BB1N 6
BB1P 6
BB2N 6
BB2P 6

BG0N 6
BG0P 6
BG1N 6
BG1P 6
BG2N 6
BG2P 6

BR0N 6
BR0P 6
BR1N 6
BR1P 6
BR2N 6
BR2P 6
BCLKN 6
BCLKP 6

R30 22/6/NC
R31 22/6/NC

R32 NC

R33 22/6/NC
R34 22/6/NC

YDIO 6
YCLK 6
YOE 6

LVACKP 6

LVACKM 6

LVB2P 6

LVB2M 6

FXDIO 6

BXDIO 6

POL 6
XSTB 6

VDD3V3 VPO

VDD3V3

VDD3V3

VDD2V5

L8

CX601T02001/8

L9

CX601T02001/8

L11

CX601T02001/8

L13

0/8

VAD

VDVI

VDD

C17

22U

C25

22U

C30

22U

C36

22U

C18

0.1U/6

C26

0.1U/6

C31

0.1U/6

C37

0.1U/6

C19

0.1U/6

C27

0.1U/6

C32

0.1U/6

C38

0.1U/6

C20

0.1U/6

C39

0.1U/6

C21

0.1U/6

C40

0.1U/6

C22

C23

0.1U/6

0.1U/6

VDD3V3

CX601T02001/8

VDD3V3

CX601T02001/8

L10

L12

C24

0.1U/6

VPLL

VDPLL

C28

22U

C33

22U

C29

0.1U/6

C34

0.1U/6

ViewSonic Corporation

AVSS

AVSS

AVSS

56

64

68

Confidential - Do Not Copy

AVSS_MPLL

36254

AVSS_DVI

AVSS_PLL

AVSS_DVI

GNDP

GNDP

AVSS_DVI

39

42

10208595115

48

VA702-3_VA702b-3

GNDP

GNDP

105

GNDP

GNDP

GNDP

GNDC

1271986

GNDC

96

GNDC

116

GNDC

ViewSonic Corporation

Model

Title

Date Rev:

SCALAR

54

VDD3V3

12

12

R39

R40

R99

33K/6

33K/6

33K/6

PWR

Q2

MENU
SEL
UP
DOWN
RIGHT
LEFT

C460.1U/6

C470.1U/6

12

12

D24

PWR_O MENU_O

3

DAN217K

12

DAN217K

D25

3

12

12

12

R100

R101

33K/6

33K/6

33K/6/NC

C920.1U/6

C820.1U/6

C930.1U/6

VDD3V3 VDD3V3 VDD3V3

12

12

12

R106

R105

33K/1K/6/NC

L37 1K/6
L38 1K/6
L39 1K/6
L14 1K/6
L15 1K/6
L40 1K6/NC
L41 1K/6/NC
L16 330/6
L17 330/6
L18 0/8

C950.1U/6/NC

C940.1U/6/NC

D33

SEL_O UP_O DOWN_O

3

DAN217K

1 2
1 2
1 2
1 2
1 2
1 2
1 2
1 2
1 2
1 2

PWR_O
MENU_O
SEL_O
UP_OSCL_1
DOWN_O

TO BUTTON BOARD

D34

12

3

DAN217K

12

3

DAN217K

RIGHT_O
LEFT_O

D35

CN4

10
9
8
7
6
5
4
3
2
1

4501-10-10P-R

Q1

MMST3906

SCL-VGA
SDA-VGA

VDD3V3

R38

10K/6

MMST3906

1 2

R97 4.7K/6

modify debug port

VDD3V3

CN5

4

4

3

3

2

2

1

1

JWT-A2001WV2-06/NC

2.0mm pitch
90° E&T

D37

12

3

DAN217K/NC

VDD3V3 VDD3V3

12

VDD3V3

MCP810M3X-2.93

G

3

12

VR

CSZ4
SDA4
SCL4

0.1u/6/NC

VCPU

SCL-VGA3

SDA-VGA3

VCPU

INT4

XTAL4

R53 2K/6

R54 2K/6

R18 100/6

R19 100/6

22P/6

R58 NC

C50

NC

R43

NC

12

C99

12

12

C51

U8

1 2

VCC RESET

GND

3

VCPU

R41 82K/6

R45

R44

NC

10K/6

12

22P/6

C100

0.1u/6/NC

22P/6

22P/6

C54 0.1U/6/NC

1N4148/NC

R48 22/6
R49 22/6
R50 22/6

VCPU

DDC_VS3

R59 22/6

C52

12

C53

12

12

D23

R113 2K/6

R98 100/6

X2

11.0592MHz

VDD3V3

MH0001
MH0002
MH0003
PWR
MENU
SEL
SCL_1
SDA_1

INVCTRL

SS0003

R60

100/6

VCPU

1

12

0.1U/6

C44

2

C45

17
18
20
21
22
23
14
13

29
28

43
44

37
36

19

15

11

12 10

U4

0.1U/6

1

A0

2

A1

3

A2

4 5

VSS SI

24LC08B

PARAMETER

EEPROM

U5

7

RST

P1.0
P1.1
P1.2
P1.3
P1.4
P1.5
P3.5/T1/ISCL
P3.4/T0/ISDA

P3.0/RXD/HSCL
P3.1/TXD/HSDA

HSYNC
VSYNC

P4.1/HBLANK
P4.0/VBLANKK

P3.2/INT0

P4.2/STOUT

X2

X1 VSS

MTV312

VCC

WP

SCK

HCLAMP/DA7

HLFHO/DA9

P6.7/DA13
P6.6/DA12

P6.4/DA10
P6.5/DA11

HALFV/DA8

8
7
6

VDD

VDD3

P1.6
P1.7

P5.2/DA2
P5.6/DA6
P5.0/DA0
P5.1/DA1

P6.0/AD0
P6.1/AD1

NC
NC

P6.3/AD3
P6.2/AD2

P5.3/DA3
P5.4/DA4
P5.5/DA5

SCL_O
SDA_O

8
4

24
25

35
38

R89 100/6

1
34
3
2

33
32

27
26

5
6

9
16
30
31

42
41
40
39

R36

R35

2K/6

2K/6

UP

DOWN

R52

10K/6

1 2

R57 0/6/NC

RIGHT
LEFT

LED_R
LED_G

R61 10K/6

R46 100/6

SDA_1

R47 100/6

12

R95

10K/6

C48

0.1U/6

NC

R88

PC5V_OFF

R55 10K/6/NC
R56 10K/6/NC

PWR_SEL

R42 NC

VCPU

12

C49

22U

VGA_CON 3

VDD3V3
VDD3V3

RESET 4

VCPU

HP-MCU 3

VCPU

LED_G

LED_R

L19

1 2

0/8/NC

VDDCTRL_2 6

VDDCTRL_1 6

R37

10K/6

1 2

R96 4.7K/6

VDD3V3

DEBUG PORT

VDD3V3 VDD3V3

D36

12

RIGHT_O LEFT_O

3

DAN217K/NC

CN6 CONN 4x2-R

1 2

4

3
5 6

8

C101

1U/6

10K/6

0/6

12V

FUSE1
0/1206

1 2

L22

MMST3906

12

C64

0.1U/6

L23

12

R108 0/1206

BC0610R6H-B246-2_5/NC

C55

0.1u/6

VDD3V3

R64

0/6

Q3

10K/6/NC

R71 10K/6

C65

1U/8

VDD3V3

R65

10K/6

R69

L20

GND

VDD3V3

3

1

R70
1K/6

C56

0.1u/6

R681K/6

2

INVCTRL

Q5

SN7002E

VCC12

C57
330u/16V/NC

BRIGHTNESS 4

330U/16V

C58

VCC12

GND

PW0003

VDD3V3

R63

0.3/1206

12

C68

0.1U/6

C59

0.1U/6

GND

U6

8

DRIVE

7

SENSE

6

VCC

MC34063

PW0005

R66 3.6K/F/6

R67

2.2K/F/6

Q4

3 1

VIN VOUT

2

GND

AIC1739

PW0004

SWITCH

EMITTER

TIMING

GNDCII

1

2

3

45

GND

C69

0.1U/6

PW0006

PW0007

C60

470P/6

12

GND GND

VDD2V5

C70

22U

D26 EC10QS04

L21

47UH

CPU

1 2

12

C61

0.1U/6

GND

21

C62

330U/16V

PWR_SEL

GND

R94

6.8K/6

R112

2K/6

VDD3V3

C63

330U/16V/NC

GND

VCC12

12

12

PC5V_OFF

R91

4.7K/6

DSUB_5V

12

R93

1 2

1K/6

VDD3V3

R92

2K/6

2

10K/6

Q11

MMST3906

12

31

Q12
2N3904

Q10

MMST3906

12

R90

R111 47/6

1 2

3.3/6

12

R114

VCPU

D30

3.3V

2 1

ViewSonic Corporation

Model

Title

MCU / BOTTON CONTROL

ViewSonic Corporation

Confidential - Do Not Copy

VA702-3_VA702b-3

Date Rev:

55

LCDVDD

LCDVCC

VDD3V3

12

R72

82K/6/NC

R76

31

Q8

10K/6/NC

DTC144EUA/NC

2

C72

C

2

B

FB0N4
FB0P4

FB1N4
FB1P4

FB2N4
FB2P4

FG0N4
FG0P4

FG1N4
FG1P4

FG2N4
FG2P4

FCLKN4
FCLKP4

FR0N4
FR0P4

FR1N4
FR1P4

FR2N4
FR2P4

FXDIO4
XSTB4
POL4
BXDIO4

YCLK4
YDIO4
YOE4

L26 0/8/NC
L27 0/8/NC
L28 0/8/NC
L29 0/8/NC

L30 0/8/NC

C80

0.1U/6/NC

3

1

Q6 SI2301DS

1

2200P/6/NC

VDDCTRL_1 5

E

12

2

D

2

G

12

C81

0.1U/6/NC

3

1 2

C73

3

1

S

CN7

AF750B-A2G1T/NC

LCDVDD

VCC12

LCDVDD

12

R73

10K/6/NC

2200P/6/NC

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50

1

1

C74

0.1U/6/NC

BB2P4
BB2N4

BB1P4
BB1N4

BB0P4
BB0N4

BG2P4
BG2N4

BG1P4
BG1N4

BG0P4
BG0N4

BCLKP4
BCLKN4

BR2P4
BR2N4

BR1P4
BR1N4

BR0P4
BR0N4

1

1

C75

330U/16V/NC

AF730B-A2G1T/NC

2
3
4
5 6

2
3
4
5 6

LCDVCC5

R103

0/8/NC

CN8

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30

H3

1

MTH276D126

H1

1

MTH276D126

31

R104

R74

82K/6

R77

82K/6

9
8
7

9
8
7

0/8

12

C76

2200P/6

Q9

DTC144EUA

2

C

3

2

B

VCC12

Q7 SI2301DS

1

2

D

2

G

VDDCTRL_2 5

1

E

GND

H4

2
3

1

4
5 6

MTH276D126

H2

2
3

1

4
5 6

MTH276D126

3

12

3

1

R83

0/1206

1U/8

9
8
7

9
8
7

S

C86

1 2

C77

2200P/6

GND

R75

10K/6

U7

8

DRIVE

7

SENSE

6

VCC

MC34063/NC
R85 3.6K/F/6

R86

1.2K/F/6

LCDVCC

12

C78

0.1U/6

SWITCH

EMITTER

TIMING

GNDCII

LCDVCC

C79

330U/16V

1

2

3

45

LVB2M4

LVACKM4

12

C87

470P/6

D29 EC10QS04

L32

47UH

1 2

12

R87

33K/6

C88

0.01U/6

BR1P
BR0P
LVB2M
GND
BCLKP
FCLKN
FB0N
GND
FB1N
FB2N
LVACKM
FG0N

GND
LCDVCC

21

12

0.1U/6

GNDGND GNDGND GND GND

11
13
15
17
19
21
23
25
27
29

LCD

C89

CN9

1
3
5
7
9

1841 30P

1
3
5
7
9
11
13
15
17
19
21
23
25
27
29

C90

330U/16V

LCDVCC
LCDVCC

LCDVCC5GND

BR1N
BR0N
LVB2P
GND
BCLKN
FCLKP
FB0P
GND
FB1P
FB2P
LVACKP
FG0P
POL

GND

LVB2P 4

3.6K/F/6/NC

LVACKP 4

1.2K/F/6/NC

LCDVCC

R81

R82

GND

2

2

4

4

6

6

8

8

10

10

12

12

14

14

16

16

18

18

20

20

22

22

24

24

26

26

28

28

30

30

ViewSonic Corporation

Model

Panel interface

Title

ViewSonic Corporation

Confidential - Do Not Copy

VA702-3_VA702b-3

Date Rev:

56

8
7
6
5
4
3
2
1

CN1

4500-10-8P-R

SW5

1
3

HDK632A

SW4

1
3

HDK632A

SW3

1
3

2
4
5

2
4
5

2
4
5

LED1

EL-209-2EGW

A2

C

A1

green

orange

HDK632A

SW2

1
3

HDK632A

SW1

1
3

HDK632A

2
4
5

2
4

CN1

ViewSonic Corporation

Confidential - Do Not Copy

VA702-3_VA702b-3

LED1

SW1SW2SW3SW4SW5

ViewSonic Corporation

Model

Title

Date Rev:

BUTTON-BOARD

11. PCB Layout Diagrams

BUTTON 0

BUTTON 1

L 0

L 1

L 2

ViewSonic Corporation

Confidential - Do Not Copy

57VA702-3_VA702b-3

58

* 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

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?

Good Fair Bad

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:

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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
([e-mail])

ViewSonic Corporation Confidential - Do Not Copy VA702-3_VA702b-3