ViewSonic VA702-3, VA702b-3, VLCDS27998-3W, VLCDS27998-4W 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]

Service Manual

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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

57

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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 .

To Metal Parts

V

AC VOLTMETER

1500 10W

0.15u
.

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

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

Place the monitor on a clean & soft foam pad .

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

1280 x 1024 @ 60Hz

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

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

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

36 WATTS (MAX)

Max Input AC Current

1.2 ARMS @ 90VAC, 0.8 ARMS @180VAC

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ELECTRICAL REQUIREMENTS

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>>
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
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:

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.

3 seconds (Max)
1 seconds (Typ) for recognized timings
1-2 seconds (Typ) for unrecognized timing
.

Mode Change Image The image shall blank while the monitor changes modes.

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LCD Panel

1st Source Panel

QD17EL0711

Type

NORMALLY WHITE, TN, OPTICAL COMPENSATION FILM

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

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

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)

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

Response Time
10%-90% @ Ta=25°C

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

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

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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

Power On / Off Displays the Main Menu or
exits the control screen
and saves adjustments.

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

Power light
Green = ON
Orange=power

saving

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

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

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

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3. ELECTRICAL SPECIFICATIONS

3.1 Standard conditions

Display Area

338 x 270 mm

Video Signal

0.7 Vpp

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 90 -240 ~Volts
Power Frequency
Input current

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.

Rated Input Voltage 12Vdc
Input Voltage Range 11.4 ~ 12.6 Vdc
Input Current <2A

Input

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

Output

Rated Ourput Current 7~8 mA

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 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

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.
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

Test condition Pattern Specification Remark

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

brightness & contrast is 100%

Pattern 2

3 RGB color performance RGB color Check the color temperature of

RGB signal color

Pattern 3,
4, 5

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

4 , 5

5 Full white Full white Check the brightness ,CR &

bright pixel defect

Pattern 6

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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Firmware update procedure:

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

Print port Fixture

VA702/b- LPT cable

2. Connection :

T

o PC To

monitor

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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 c ode. 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

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)

Power cord

QSG

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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

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

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

1

Accessories:

POWER CORD SP-305+IS-14 3P 1.8M(TWN)B GP A-00003642 DM33T181004 power cord 1
2 ADP/INV,SLV0315A0450-1057,90~264V REV1A B-00000936 AS05B310202 power board 1
3 MAIN BOARD (MST8111A) GP B-00005786 1SL7VCMB066 main board 1
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
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

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

Documentation:

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

14

Electronic

Components:

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

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

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

Miscellaneous:

LCD FILM L7VC(JXL7V003,REV3B)GP M-MS-0808-7399 JXL7V003017 LCD F film 1

24

Plastics:

RUBBER FOOT L5VC(GAL5V002,REV3A) GP M-MS-0808-9251 GAL5V002013 Rubber foot 1

Remark 1:

Above listed items are examples, supplier can expand the rows to add more necessary items.

Remark 2:

ViewSonic Model Number: VLCDS27998-3W

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.

RECOMMENDED SPARE PARTS LIST (VA702-3)

Description

PC Board
Assembly:

Hardware:

Packing Material:

Cabinets:

Cables:

Serial No. Prefix: Q5L Rev: 1a

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

1

Accessories:

POWER CORD SP-305+IS-14 3P 1.8M(TWN)B GP A-00003642 DM33T181004 power cord 1
2 ADP/INV,SLV0315A0450-1057,90~264V REV1A B-00000936 AS05B310202 power board 1
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
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
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
12

Documentation:

QSG+CD (VA702B-3) L7VC-A2(HGL7VC07,3A)GP DC-00005789 HGL7VC07010 user guide 1

13

Electronic

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

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

SCREW M3.0*4.0-I(NI) GP

M-SCW-0824-6802

MM30040IBJ9

panel to L/R bracket 10

18

Miscellaneous:

LCD FILM L7VC(JXL7V003,REV3B)GP M-MS-0808-7399 JXL7V003017 LCD F film 1

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
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:

Above listed items are examples, supplier can expand the rows to add more necessary items.

Remark 2:

RECOMMENDED SPARE PARTS LIST (VA702b-3)

Description

ViewSonic Model Number: VLCDS27998-4W

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.

PC Board
Assembly:

Cabinets:

Cables:

Hardware:

Packing Material:

Plastics:

ViewSonic Model Number: VLCDS27998-3W
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

DM33T181004

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

1

BOM LIST (VA702-3)

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

43

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

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 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

1

BOM LIST (VA702b-3)

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

44

ViewSonic Corporation

Confidential - Do Not Copy

45

Model

Title

Date Rev:

ViewSonic Corporation

Exploded diagram

VA702-3_VA702b-3

8. Exploded Diagram and Exploded Parts List

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

46

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

EXPLODED PARTS LIST (VA702-3)

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

47

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

EXPLODED PARTS LIST (VA702b-3)

ViewSonic Corporation

Confidential - Do Not Copy

48VA702-3_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

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

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

49

9. Block Diagram

MST8111A

Triple ADC

Interface

Clock

Gen.

Host

Interface

Panel

Interface

Panel

Interface

Control

Analog

RGB

Crystal

14.318MHz

EEPROM

24C08

CPU

MTV312V64

17” Panel

Backlight

Power

Board

Backlight

Control

Inverter

ON/OFF

Keypad

Switch

Si2301DS

ISP

Crystal

11.0592MHz

SCL/SDA

RST

IRQ

CSZ

Brightness

5V

12V

DDC -SCL

DDC -SDA

LVDS1+ / LVDS1-

LVDS2+ / LVDS2-

CLK+ / CLK-

HSYNC / VSYNC

AR , AG, AB

1. System block

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

50

2. Power

12V

MC34063

MC34063

AIC1739

12V

5V

2.5V

3.3V

Model

Title

Date Rev:

ViewSonic Corporation

BLOCK DIAGRAM

AUDIO_MUTE

POWER INVERTER
AND AUDIO BOARD

AUDIO_VOLUME

PC
VGA

MICRO-CONTR

OLLER

MTV312

ANALOG RGB

DDC

EEPROM
24LC16

+3.3V

LCDPWR_ON5.0V

POWER

LCDVCC

+3.3V

+3.3V+2.5V

AIC1739

+2.5V

QDI LCD
PANEL(17
LVDS)

+5.0V

SCALAR
MST8111A

LVDS

AC 100-240Vac

INVCTRL

+3.3V+3.3V

BRIGHTNESS

+12V

34063

34063

+5.0V

10. Schematic Diagrams

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Confidential - Do Not Copy

51VA702-3_VA702b-3

ViewSonic Corporation

Confidential - Do Not Copy

52

Model

Title

Date Rev:

ViewSonic Corporation

VGA AND TMDS INPUT

VA702-3_VA702b-3

132

SOT23

HSYNC

RED+IN

GREEN-IN

GREEN+IN BLUE+IN

IN-H IN-V VGA_SDA_O VGA_SCL_O

VSYNC

IN-V

IN-H

SDA-DDDC

SCL-DDDC

GREEN+IN

BLUE+IN

GREEN-IN

TX2-

VGA_SDA_O

VCC-DDC

VGA_SCL_O

DDC-SDA

DDC-SCL

IN-V

IN-H

TX1-

TX0+

TX0-

TX1+

TXC+

GREEN-IN GREEN+IN

BLUE+IN

IN-H

VGA_SCL_O

IN-V
VGA_SDA_O
DSUB_5V_O

RED+IN

SCL-DDDC

VCC-DDC

SDA-DDDC

RED+IN

GREEN+IN

BLUE+IN

RED+IN

RED-INRED-IN

TXC-

DDC_VS

BLUE-IN

TX2+

GND

RED-IN

BLUE-IN

BLUE-IN

DSUB_5V

SDA-VGA

DSUB_5V_O

VGA_CON_O

VGA_CON_O

GND

VGA_CON_O

SCL-VGA

DDC_VS

RED- 4

GREEN- 4

BLUE- 4

TX2- 4
TX2+ 4

TX1- 4
TX1+ 4

TX0- 4
TX0+ 4

TXC+ 4

SDA-VGA 5

SCL-VGA 5

HSYNC 4

BLUE+ 4

RED+ 4

GREEN+ 4

VSYNC 4

HP-MCU 5

SOGIN 4

TXC- 4

VGA_CON 5

DDC_VS 5

VDD3V3

VDD3V3

VDD3V3

DSUB_5V

D20

Z5.6/NC

2 1

L1 100/6

L7 100/6

R23 100/6/NC

C6 0.047u/6

R7 100/6

C8 0.047u/6

C14

0.1U/6/NC

D10

Z5.6/NC

2 1

L6 FCM 1608C-300T06 (BULL WILL)

C7 0.01U/6

D21

Z5.6/NC

2 1

C3 0.047u/6

C15

0.1U/6NC

R8 33/6

D22

Z5.6/NC

2 1

R10 68/6

R22 100/6/NC

L2 FCM 1608C-300T06 (BULL WILL)

R26

10K/6NC

R107
2K/6/NC

C1 0.047u/6

D1

BAT54C-GS08/NC

C13

33P/6

D12

Z5.6/NC

2 1

D16

Z5.6/NS

2 1

D5

Z5.6/NC

2 1

CN1

VGA/NC

1
6
2
7
3
8
4
9
5

11

12

13

14

15

10

1617

C5

NC

D6

Z5.6/NC

2 1

R16
2K/6/NC

D3

DAN217K/NC

12

3

D7

Z5.6/NC

2 1

D17

Z5.6/NS

2 1

R14 100/6

L36 100/6/NC

D8

Z5.6/NC

2 1

R15

2K/6

D11

BAT54C-GS08/NC

D13

Z5.6/NC

2 1

R2

75/6/F

R1 33/6

R17
2K/6/NC

R3 68/6

D2

DAN217K/NC

12

3

R20
2K/6/NC

C10 0.047u/6

U2

M24C02/NC

1
2
3
4 5

6

7

8

NC
NC
NC
VSS SDA

SCK

VCLK

VCC

D15

Z5.6/NC

2 1

C2

NC

C12

0.1U/6/NC

R9

75/6/F

R12

2K/6

R13 100/6

L35 0/6

D14

Z5.6/NC

2 1

C11

33P/6

R25 10K/6NC

D18

Z5.6/NC

2 1

D4

DAN217K/NC

12

3

L5 100/6

R109
0/6/NC

R11 100/6

L3 FCM 1608C-300T06 (BULL WILL)

C4 0.047u/6

R21
2K/6/NC

R4 33/6

C16
1U/6NC D19

Z5.6/NC

2 1

CN3

DVI-D/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

RX2­RX2+
GND
RX4­RX4+

SCL
SDA

VS

RX1­RX1+
GND
RX3­RX3+

5V

GND

HP

RX0­RX0+
GND
RX5­RX5+
GND

RXC+

RXC-

26

25

C9

NC

D32

Z5.6/NC

2 1

R6 68/6

R5

75/6/F

U1

24LC21/NC

1
2
3
4 5

6

7

8

NC
NC
NC
VSS SDA

SCK

VCLK

VCC

CN2

VGA INPUT

1
3
5
7

9
11
13

2
4
6
8
10
12
14

+
+
+
+
+
+
+

+
+
+
+
+
+
+

R24 10K/6NC

D9

Z5.6/NC

2 1

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Confidential - Do Not Copy

53

Model

Title

Date Rev:

ViewSonic Corporation

SCALAR

VA702-3_VA702b-3

Dual Input

OSP

PA11

GPO4

PB23

PA2

PB24

PB15

PB10

GPO1

PB25

PB19

ESP

PB13

PA23

PA5

PA25

PB22

PB18

PA21

PA6

GPO0

PB21

PB14

PB5

PB4

PA12

PA7

GPO3

PA24

PA15

OINV

PA20

PA13

PB12

PB6

PB3

PA4

PB11

PA19

PA18

PA14

PB20

PB2

PA10

PA22

PB7

PA3

GPO2

BRIGHTNESS5

HSYNC3
VSYNC3

GREEN+3
GREEN-3

SCL5
SDA5

RESET5

TXC-3

TXC+3

TX0-3

TX0+3

TX1-3

TX2-3

TX2+3

TX1+3

FB0N 6

FB0P 6

FB1N 6

FB1P 6

FB2N 6

FB2P 6

FG0N 6

FG0P 6

FG1N 6

FG1P 6

FG2P 6
FG2N 6

FR0N 6

FR0P 6

FR1N 6

FR1P 6

FR2P 6
FR2N 6

FCLKP 6
FCLKN 6

FXDIO 6

BXDIO 6

BG0P 6

BG0N 6

BG1P 6
BG2N 6

BCLKP 6

BCLKN 6

BR0P 6

BR0N 6

BR1P 6

BR1N 6

BR2P 6

BR2N 6

BB0P 6

BB0N 6

BB1P 6

BB1N 6

BLUE-3

BLUE+3

RED+3
RED-3

SOGIN3

BB2P 6

XSTB 6

POL 6

BG2P 6

BB2N 6

BG1N 6

YCLK 6

YDIO 6

YOE 6

INT5

CSZ5

XTAL5

LVACKM 6

LVACKP 6

LVB2P 6

LVB2M 6

VPLL VDPLL

VDVI

VDD3V3

VDD3V3

VDD2V5

VDD3V3

VDD3V3

VDD3V3 VPO

VPO

VDD

VDPLL

VPLL

VDVI

VAD VDVI VDD

VAD

R31 22/6/NC

L13

0/8

X1

14.318MHz

R32 NC

R29 100/6

C35

0.1U/6

C43 0.1U/6

R27 390/1%

C18

0.1U/6

C17

22U

R33 22/6/NC

C19

0.1U/6

C31

0.1U/6

C20

0.1U/6

C32

0.1U/6

U3

MST8111A

63

60

61
58

62

59

57
37
38

40
41
43
44
46
47
49
50
52

66

67

69

70

71

32
72

73
74

106
107

55354535111218494

104

114

126188797117

3956362544210208595115

1271986

96

105

116

33

34

108
109
110
111
112
113

98
99
100
101
102
103

88
89
90
91
92
93

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

118
119

120
121

75
76
77
78

83
82
81
80
79

29
28

30
31

53

65

644868

RIN0

GIN0

SOGIN0
BIN0

RIN0M

GIN0M

BIN0M
HSYNC0
VSYNC0

R+
R­G+
G­B+
B­CK+
CK­REXT

REFP

REFM

CSZ

SDA

SCL

HWRESETZ
INT

PWM0
PWM1

RA0P
RA0N

AVDD

AVDD_MPLL

AVDD_DVI

BYPASS

AVDD_DVI

VDDP

VDDP

VDDP

VDDP

VDDP

VDDP

VDDP

VDDC

VDDC

VDDC

VDDC

AVSS_DVI

AVSS

AVSS_MPLL

AVSS_LPLL

AVSS_PLL

AVSS_DVI

GNDP

GNDP

GNDP

GNDP

GNDP

GNDP

GNDC

GNDC

GNDC

GNDP

GNDC

XIN

XOUT

RA1P
RA1N
RA2P
RA2N
RA3P
RA3N

GA1P
GA1N
GA2P
GA2N
GA3P
GA3N

BA1P

BA1N

BA2P

BA2N

BA3P

BA3N

RB1P
RB1N
RB2P
RB2N
RB3P
RB3N
GB0P
GB0N
GB1P
GB1N
GB2P
GB2N
GB3P
GB3N

BB0P

BB0N

BB1P

BB1N

BB2P

BB2N

BB3P

BB3N

CLKAP
CLKAN

CLKBP
CLKBN

ESP

OSP
EINV
OINV

GPO0
GPO1
GPO2
GPO3
GPO4

DDC1_CLK/GPO8
DDC1_DAT/GPO7

DDCROM_CLK/GPO6
DDCROM_DAT/GPO5

AVDD_PLL

AVDD

AVSS

AVSS_DVI

AVSS

C21

0.1U/6

C96

0.1u/6/NC

12

C22

0.1U/6

C97

0.1u/6/NC

12

C23

0.1U/6

R51 22/6

C24

0.1U/6

L9

CX601T02001/8

C37

0.1U/6

C98

0.1u/6/NC

12

C38

0.1U/6

R110

10K/NC

C39

0.1U/6

C34

0.1U/6

C40

0.1U/6

L10

CX601T02001/8

C26

0.1U/6

C27

0.1U/6

L12

CX601T02001/8

C25

22U

C42

22P/6

12

C28

22U

L11

CX601T02001/8

C30

22U

L8

CX601T02001/8

R28 100/6

C41

22P/6

12

C33

22U

C29

0.1U/6

C36

22U

R30 22/6/NC

R34 22/6/NC

ViewSonic Corporation

Confidential - Do Not Copy

54

Model

Title

Date Rev:

ViewSonic Corporation

MCU / BOTTON CONTROL

VA702-3_VA702b-3

TO BUTTON BOARD

DEBUG PORT

PARAMETER

EEPROM

2.0mm pitch
90° E&T

modify debug port

CPU

G

VR

MCP810M3X-2.93

12

3

PWR_O MENU_O

INVCTRL

SDA-VGA

SDA_O

SCL_O

SCL-VGA

LED_G

LED_R

SS0003

DOWN_O

INVCTRL

PW0005

PW0006

PW0007

PW0004

PWR_SEL

LED_G

LED_R

SEL_O UP_O DOWN_O

PWR_O
MENU_O
SEL_O
UP_OSCL_1

SDA_1

UP

DOWN

MH0001

MH0003

MH0002

PWR
MENU
SEL
SCL_1
SDA_1

PWR_SEL

RIGHT_O
LEFT_O

RIGHT
LEFT

PWR
MENU
SEL
UP
DOWN

RIGHT

LEFT

RIGHT_O LEFT_O

PW0003

PC5V_OFF

PC5V_OFF

INT4

RESET 4

CSZ4
SDA4
SCL4

HP-MCU 3

BRIGHTNESS 4

XTAL4

VGA_CON 3

VDDCTRL_2 6

VDDCTRL_1 6

SCL-VGA3
SDA-VGA3

DDC_VS3

VDD3V3

VDD2V5

VDD3V3 VDD3V3

VCPU

VCPU

VDD3V3
VDD3V3

VDD3V3

VDD3V3

VCPU

VCPU

VCPU

12V

VDD3V3

VCC12

VDD3V3

GND

GND

GND

GND GND

GND

VDD3V3

GND

VCC12

VDD3V3

VCPU

DSUB_5V

VDD3V3

GND

GND

VDD3V3

VDD3V3 VDD3V3 VDD3V3

VCPU

VDD3V3 VDD3V3

VDD3V3

VCPU

VCPU

VDD3V3

VDD3V3

VCC12

R59 22/6

L22

10K/6

12

C45

0.1U/6

12

C53

22P/6

12

D25

DAN217K

12

3

L19

0/8/NC

1 2

Q10

MMST3906

R69

10K/6/NC

D30

3.3V

2 1

U8

NC

1 2

3

VCC RESET

GND

R63

0.3/1206

Q4

AIC1739

3 1

2

VIN VOUT

GND

C62

330U/16V

R45

NC

R50 22/6

R39

33K/6

12

R90

10K/6

12

R112

2K/6

12

R61 10K/6

R40

33K/6

12

L17 330/6

1 2

C460.1U/6

12

R95

NC

C69

0.1U/6

C64

0.1U/6

Q3

MMST3906

C61

0.1U/6

12

Q5

SN7002E

3

2

1

C68

0.1U/6

R36

2K/6

R44

10K/6

R56 10K/6/NC

R99

33K/6

12

R88

10K/6

R57 0/6/NC

R91

4.7K/6

12

R100

33K/6

12

C101

1U/6

R101

33K/6

12

R58 NC

R37

10K/6

L40 1K6/NC

1 2

X2

11.0592MHz

R43

NC

L41 1K/6/NC

1 2

R67

2.2K/F/6

C70

22U

R92

2K/6

12

CN4

4501-10-10P-R

1

2

3

4

5

6

7

8

9

10

R46 100/6

C54 0.1U/6/NC

12

R70
1K/6

R106

33K/1K/6/NC

12

D33

DAN217K

12

3

D26 EC10QS04

21

Q2

MMST3906

R105

33K/6/NC

12

R64

0/6

R98 100/6

C59

0.1U/6

12

L20

BC0610R6H-B246-2_5/NC

U4

24LC08B

1
2
3
4 5

6

7

8

A0
A1
A2
VSS SI

SCK

WP

VCC

R47 100/6

R55 10K/6/NC

D34

DAN217K

12

3

R66 3.6K/F/6

R41 82K/6

R97 4.7K/6

1 2

D35

DAN217K

12

3

R93

1K/6

1 2

D36

DAN217K/NC

12

3

R49 22/6

R113 2K/6

C56

0.1u/6

D37

DAN217K/NC

12

3

C50

22P/6

12

R52

10K/6

R19 100/6

L21

47UH

1 2

C60

470P/6

12

R71 10K/6

R42 NC

C920.1U/6

C100

0.1u/6/NC

12

L15 1K/6

1 2

C470.1U/6

12

C52

22P/6

12

C930.1U/6

C99

0.1u/6/NC

12

R681K/6

C44

0.1U/6

1

2

FUSE1
0/1206

1 2

Q12
2N3904

2

31

R54 2K/6

R94

6.8K/6

12

C55

0.1u/6

C48

0.1U/6

12

R18 100/6

R111 47/6

1 2

L14 1K/6

1 2

R108 0/1206

C57
330u/16V/NC

L16 330/6

1 2

C51

22P/6

12

D24

DAN217K

12

3

R38

10K/6

R96 4.7K/6

1 2

C820.1U/6

C49

22U

12

R35

2K/6

R48 22/6

D23

1N4148/NC

R89 100/6

1 2

L39 1K/6

1 2

L18 0/8

1 2

L37 1K/6

1 2

CN5

JWT-A2001WV2-06/NC

1

2

3

4

1

2

3

4

Q11

MMST3906

CN6 CONN 4x2-R

4

5 6

1 2
3

8

L38 1K/6

1 2

R53 2K/6

Q1

MMST3906

U6

MC34063

1

2

3

45

6

7

8

SWITCH

EMITTER

TIMING

GNDCII

VCC

SENSE

DRIVE

L23

0/6

12

C58

330U/16V

R114

3.3/6

12

C950.1U/6/NC

C940.1U/6/NC

R65

10K/6

U5

MTV312

17
18
20
21
22
23

24
25

7

29
28

19

4

13

14

5
6

11

12 10

43
44

30
31

32

33

37
36

41

15

40

42

1

2

3

9
16

26

27

8

39

38

35

34

P1.0
P1.1
P1.2
P1.3
P1.4
P1.5

P1.6
P1.7

RST

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

P3.2/INT0

VDD3

P3.4/T0/ISDA

P3.5/T1/ISCL

NC
NC

X2

X1 VSS

HSYNC
VSYNC

P6.4/DA10
P6.5/DA11

P6.6/DA12

P6.7/DA13

P4.1/HBLANK
P4.0/VBLANKK

P5.4/DA4

P4.2/STOUT

P5.5/DA5

P5.3/DA3

P5.2/DA2

P5.1/DA1

P5.0/DA0

P6.3/AD3
P6.2/AD2

P6.1/AD1

P6.0/AD0

VDD

HALFV/DA8

HLFHO/DA9

HCLAMP/DA7

P5.6/DA6

C65

1U/8

R60

100/6

C63

330U/16V/NC

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Model

Title

Date Rev:

ViewSonic Corporation

Panel interface

VA702-3_VA702b-3

1

D

E

2

1

S

1

3

2

3

B

G

C

C

E

2

B

2

G

3

3

D

S

1

LCD

LCDVCC

FCLKN

BCLKP

LCDVCC

LCDVDD

LVB2P

POL

BR0P

LVACKP

LVB2M

FG0P

FB0P

LCDVDD

FB1P

LCDVCC

FB0N

BCLKN
FCLKP

BR1P

BR0N

GND

LVACKM

GND

FG0N

LCDVCC

LCDVCC

FB2P

FB1N
FB2N

BR1N

GND

GND

GND

FB2N4

VDDCTRL_1 5

FG0N4

YCLK4

BR1P4

FB1N4

BCLKP4

BG2N4

BB0N4

BB1N4

BB2N4

YOE4

FR0P4

FR2P4

FR0N4

FXDIO4

BR2P4

FR1N4

VDDCTRL_2 5

BG1N4

FB0N4

FG2N4

FG1P4

FCLKP4

FG0P4

BR0P4

BG0N4

FB1P4

BXDIO4

FB2P4

POL4

BCLKN4

BG1P4

BG2P4

BB0P4

BB1P4

BB2P4

YDIO4

XSTB4

BR0N4

BR1N4

FB0P4

BR2N4

FCLKN4

FG2P4

FR2N4

FR1P4

BG0P4

FG1N4

LVB2M4

LVACKP 4

LVB2P 4

LVACKM4

VCC12

VDD3V3

GNDGND GNDGND GND GND

LCDVCC5GND

GND

LCDVCC

LCDVDD

GND

LCDVCC

GND

GND

VCC12

LCDVCC5

R82

1.2K/F/6/NC

R76

10K/6/NC

R85 3.6K/F/6

C89

0.1U/6

12

C78

0.1U/6

12

Q9

DTC144EUA

2

31

C80

0.1U/6/NC

12

C87

470P/6

12

1

H1

MTH276D126

2
3
4
5 6

7

8

9

C81

0.1U/6/NC

12

C74

0.1U/6/NC

12

L26 0/8/NC

R83

0/1206

C76

2200P/6

12

R87

33K/6

C73

2200P/6/NC

1 2

1

1

C77

2200P/6

1 2

R75

10K/6

Q8

DTC144EUA/NC

2

31

U7

MC34063/NC

1

2

3

45

6

7

8

SWITCH

EMITTER

TIMING

GNDCII

VCC

SENSE

DRIVE

CN7

AF750B-A2G1T/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

R74

82K/6

C72

2200P/6/NC

12

L30 0/8/NC

R73

10K/6/NC

Q7 SI2301DS

3

2

1

1

H2

MTH276D126

2
3
4
5 6

7

8

9

L27 0/8/NC

D29 EC10QS04

21

1

H3

MTH276D126

2
3
4
5 6

7

8

9

C88

0.01U/6

12

C79

330U/16V

Q6 SI2301DS

3

2

1

L29 0/8/NC

CN9

1841 30P

1
3
5
7

9
11
13
15
17
19
21
23
25
27
29

2
4
6
8
10
12
14
16
18
20
22
24
26
28
30

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

2
4
6

8
10
12
14
16
18
20
22
24
26
28
30

CN8

AF730B-A2G1T/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

C86

1U/8

12

R77

82K/6

R72

82K/6/NC

R103

0/8/NC

R104

0/8

R81

3.6K/F/6/NC

1

1

C75

330U/16V/NC

R86

1.2K/F/6

C90

330U/16V

L32

47UH

1 2

1

H4

MTH276D126

2
3
4
5 6

7

8

9

L28 0/8/NC

ViewSonic Corporation

Confidential - Do Not Copy

56

Model

Title

Date Rev:

ViewSonic Corporation

BUTTON-BOARD

VA702-3_VA702b-3

green

orange

LED1

SW1SW2SW3SW4SW5

CN1

SW1

HDK632A

1
3

2
4

SW3

HDK632A

1
3

2
4
5

CN1

4500-10-8P-R

1

2

3

4

5

6

7

8

SW5

HDK632A

1
3

2
4
5

SW2

HDK632A

1
3

2
4
5

LED1

EL-209-2EGW

A1

C

A2

SW4

HDK632A

1
3

2
4
5

11. PCB Layout Diagrams

BUTTON 0

BUTTON 1

L 0

L 1

L 2

ViewSonic Corporation

Confidential - Do Not Copy

57VA702-3_VA702b-3

ViewSonic Corporation Confidential - Do Not Copy VA702-3_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

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?

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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])