Viewsonic VG1930wm-3 Service Manual

Service Manual

ViewSonic VG1930wm-3

Model No. VS11419

19” Color TFT LCD Display

(VG1930wm-3_SM Rev. 1a Jan. 2007)

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

Copyright

Copyright © 2007 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

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

Revision History

Revision SM Editing Date ECR Number Description of Changes Editor

1a 1/12/2007 Initial Release Jamie Chang

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TABLE OF CONTENTS

1. Precautions and Safety Notices 1

2. Specification 5

3. Front Panel Function Control Description 15

4. Circuit Description 21

5. Adjusting Procedure 28

6. Trouble Shooting Flow Chart 64

7. Block Diagrams 72

8. Schematic Diagrams 73

9. PCB Layout Diagrams 78

10. Exploded Diagram And Spare Parts List 84

11. Recommended Spare Parts List 86

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1. Precautions and Safety Notices

1. Appropriate Operation

(1) Turn off the product before cleaning.

(2) Use only a dry soft cloth when cleaning the LCD panel surface.

(3) Use a soft cloth soaked with mild detergent to clean the display housing.

(4) Use only a high quality, safety approved AC/DC power cord.

(5) Disconnect the power plug from the AC outlet if the product will not be used for a long period of time.

(6) If smoke, abnormal noise, or strange odor is present, immediately switch the LCD display off.

(7) Do not touch the LCD panel surface with sharp or hard objects.

(8) Do not place heavy objects on the LCD display, video cable, or power cord.

(9) Do not use abrasive cleaners, waxes or solvents for your cleaning.

(10) Do not operate the product under the following conditions:

- Extremely hot, cold or humid environment.

- Areas containing excessive dust and dirt.

- Near any appliance generating a strong magnetic field.

- In direct sunlight.

2. Caution

No modification of any circuit should be attempted. Service work should only be performed after you are thoroughly

familiar with all of the following safety checks and servicing guidelines.

3. Safety Check

Care should be taken while servicing this LCD display. Because of the high voltage used in the inverter circuit, the voltage is

exposed in such areas as the associated transformer circuits.

4. LCD Module Handling Precautions

4.1 Handling Precautions

(1) Since front polarizer is easily damaged, pay attention not to scratch it.

(2) Be sure to turn off power supply when connecting or disconnecting input connector.

(3) Wipe off water drops immediately. Long contact with water may cause discoloration or spots.

(4) When the panel surface is soiled, wipe it with absorbent cotton or other soft cloth.

(5) Since the panel is made of glass, it may break or crack if dropped or bumped on hard surface.

(6) Since CMOS LSI is used in this module, take care of static electricity and ensure human earth when handling.

(7) Do not open or modify the Module Assembly.

(8) Do not press the reflector sheet at the back of the module in any direction.

(9) In the event that a Module must be put back into the packing container slot after it was taken out of the container, do

not press the center of the CCFL Reflector edge. Instead, press at the far ends of the CFL Reflector edge softly.

Otherwise the TFT Module may be damaged.

(10) At the insertion or removal of the Signal Interface Connector, be sure not to rotate or tilt the Interface Connector of

the TFT Module.

(11) After installation of the TFT Module into an enclosure (LCD monitor housing, for example), do not twist or bend the

TFT Module even momentarily. When designing the enclosure, it should be taken into consideration that no

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bending/twisting forces may be applied to the TFT Module from outside. Otherwise the TFT Module may be

damaged.

(12) The cold cathode fluorescent lamp in the LCD contains a small amount of mercury. Please follow local ordinances

or regulations for disposal.

(13) The LCD module contains a small amount of materials having no flammability grade. The LCD module should be

supplied with power that complies with the requirements of Limited Power Source (IEC60950 or UL1950), or an

exemption should be applied for.

(14) The LCD module is designed so that the CCFL in it is supplied by a Limited Current Circuit (IEC60950 or

UL1950). Do not connect the CCFL to a Hazardous Voltage Circuit

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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 form carton.

Take out the monitor by grasping the LCD panel.

That may cause “ MURA“.

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Correct methods : Incorrect Methods :

Place the monitor on a clean & soft foam pad . Place the monitor on foreign objects .

That could scratch the surface of panel

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2. Specification

Introductions

FEATURES VG1930wm-3

Size 19 “W

Luminance (Typ)

Contrast Ratio (Typ) 700:1

TFTLCD PANEL

Input Signal

Sync Compatibility

Compatibility

Power Voltage AC 100-240V, 50/60Hz Yes

Power Consumption

Colors 16.2 M colors

Response Time (Typ) 5 ms

Viewing Angle (H/V) 150/130(degrees;type)@CR>10

Recommend resolution 1440 X 900 @60Hz

Analog (75ohms, 0.7/1.0 Vp-p) Yes

Digital Yes

Separate Sync Yes

Composite Sync Yes

Sync on Green Yes

PC Yes

Power Mac Yes

TV Box (NextVision 6) No

On Mode(Max / Typ) 36 W

Active Off Mode (Max)

300 cd/㎡

＜2 W

Audio W 1.5w X 2

Tilt -5 ° ~ 20 °

Ergonomics

OSD Control [ ] [ 1 ] [ 2 ] [▲] [▼] [; X] Yes

Dimension

Weight

Operating Condition

Storage Condition

Swivel ( -xx ° - xx °) 360

Pivot ( XX ° - XX °) No

Height Adjust ( XX-XX mm) 0-80mm

Physical (W x H x D)

Package (W x H x D)

Physical (lbs / Kg) 5.5 Kg (12.13 lbs)

Package (lbs / Kg) 7.3 Kg (16.10 lbs)

Temperature (℉/℃)

Humidity (%) 10% to 90% (no condensation)

Temperature (℉/℃)

Humidity (%) 10% to 90% (no condensation)

460 mm (W) x 434 mm (H) x 230 mm (D)

18.1" (W) x 17.1" (H) x 9.1" (D)

560 mm (W) x 525 mm (H) x 282 mm (D)

22" (W) x 20.7" (H) x 11.1" (D)

32°F to 104°F (0°C to 40°C)

-4°F to 140°F (-20°C to 60°C)　

UL, CUL, FCC-B (ICES), CB, CE, TCO'03, ICES-003B, ISO13406-2, TUV/GS, TUV ERGO(covers ISO13406-2 &

Regulation

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MPRII), TUV-S, VCCI, NOM, GOST-R, HYGIENIC (20 copies), ENERGY, Energy Star, CCC, BSMI, PSB,

C-TICK, KTL/MIC, SASO, WEEE, RoHS

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Product definition and specification

A

Product Name ViewSonic VG1930wm

Oracle P/N VG1930WM-3

Model Number VS11419

English, French, German, Italian, Spanish,

OSD Languages

Finnish, Japanese, Traditional Chinese,
Simplified Chinese

TFT LCD Panel and Model # CMO M190A1-L02

Scalar MST TSUM56AL-LF-1

Input Signal Analog x1 / Digital x1

Sync Compatibility Separate Sync / Composite Sync / SOG

Adapter Internal Power Board

Power Cable

nalog Cable (1.8 m, black), with PC 2001 and

refer to APPENDIX B: Power Cable

Yes ,

Yes

Hot Plug Detect &DDC

(Detached cable; refer the Appendix A)

DVI-D Cable(1.8m, black) with PC 2001 For Region code = P/A/J/K/S units only

Audio Cable(1.8m, black) with PC 2001 Yes

MIC Cable(1.8m, black) with PC 2001 No

USB Cable (V2.0) No

ViewSonic CD Wizard

Arabic, English, Finnish, Spanish,

German, Italian, Japanese, Swedish,

Polish, Korean, Portuguese, Russian,

ViewSonic Quick Start Guide

Turkish , French, Czech, Hungarian,

Simplified Chinese, Traditional Chinese

PerfectSuite CD No

Screen Protector Mylar Yes

Foot Protector plastic No

Service Insert For Region code = M units only

Warranty Sticker For Region code = G units only

Warranty Card For Region code = G units only
Carton Sticker For Region code = G units only
PE bag of Carton For Region code = G units only

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2.2 GENERAL specification

Test Resolution & Frequency “1440 X900” @ 60Hz

Test Image Size Full Size

Contrast and Brightness Controls

Contrast = 70%, Brightness = 100%

Factory Default:

2.3 VIDEO INTERFACE

Input Connector(refer the appendix A) Analog : D-sub 15 ,

Digital: DVI-D

Default Input Connector

Defaults to the first detected input

Equal to twice the weight of the monitor for five

Video Cable Strain Relief

minutes

Video Cable Connector DB-15 Pin out

Refer to Appendix A; Compliant DDC/CI

Video RGB (Analog)

Video Signals

Separate Sync / Composite Sync / SOG

TMDS (Digital)

Video Impedance

Maximum PC Video Signal

Maximum Mac Video Signal

75 Ohms (Analog), 100 Ohms (Digital)

950 mV with no damage to monitor

1250 mV with no damage to monitor

Sync Signals TTL

DDC 1/2B

Sync Compatibility

Compliant with version 1.1

Separate Sync / Composite Sync / SOG

Shall be compatible with all PC type computers,

Video Compatibility

Macintosh computers, and after market video cards

Resolution Compatibility

Exclusions

Refer to Segment 4-5

Not compatible with interlaced video

2.4 POWER SUPPLY

Internal Power Supply

Input Voltage Range

Input Frequency Range

Short Circuit Protection

Over Current Protection

Leakage Current

Efficiency(at 115VAC Full Load)

Fuse

Power Dissipation

Max Input AC Current

Inrush Current (Cold Start)

Mirage 860-AB0-190DTLB-PVH

90 to 264 VAC

47 to 63 Hertz

Output can be shorted without damage

5A typical at 14.0 VDC

3.5mA (Max) at 254VAC / 60Hz

Typical: 80%

Minimum: 75%
Internal and not user replaceable

39 Watts (typ) / 49.2W (max)

1.5 Arms @ 90VAC, 0.75 Arms @180VAC

50 A (max) @ 115VAC
90 A (max) @ 230VAC

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Power Supply Cold Start

Power Supply Transient Immunity

Power Supply Line Surge Immunity

Shall start and function properly when under full load, with all
combinations of input voltage, input frequency, and operating
temperature.
Shall be able to withstand an ANSI/IEEE C62.41-1980 6000V 200
ampere ring wave transient test with no damage.

Shall be able to withstand 1.5 times nominal line

voltage for one cycle with no damage.

Shall be able to function properly, without reset or

Power Supply Missing Cycle Immunity

Power Supply Acoustics

Power Saving Operation(Method)

Power Consumption

Recovery Time

visible screen artifacts, when ½ cycle of AC power is

randomly missing at nominal input.

The power supply shall not produce audible noise that

would be detectable by the user. Audible shall

defined to be in compliance with ISO 7779 (DIN

EN27779:1991) Noise measurements of machines

acoustics. Power Switch noise shall not be

considered.

VESA DPMS Signaling

Power

Mode LED

Consumption

On Blue 34W (typ)

36W (max)

Active off Amber <2W

Off Off <1W

ON Mode = N/A, ACTIVE OFF < 3 sec

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2.5 ELECTRICAL REQUIREMENT

Horizontal / Vertical Frequency

Horizontal Frequency

Vertical Refresh Rate

30 – 82 kHz

56– 76 Hz.

Maximum Pixel Clock

Sync Polarity

135 MHz

Independent of sync polarity

Timing Table

Analog

Composite

Separated

Item Timing

1 640 x 350 @ 70 Hz, 31.5 KHz 　 　 　 　 DMT

2 640 x 400 @ 60 Hz, 31.5 KHz 　 　 　 　

3 640 x 400 @ 70 Hz, 31.5 KHz 　 　 　 　

4 640 x 480 @ 50 Hz, 24.7 KHz 　

5 640 x 480 @ 60 Hz, 31.5 KHz 　 　 　 　 DMT

6 640 x 480 @ 67 Hz, 35 KHz 　 　 　 　 For MAC

7 640 x 480 @ 72 Hz, 37.9 KHz 　 　 　 　 DMT

8 640 x 480 @ 75 Hz, 37.5 KHz 　 　 　 　 DMT

Digital - TMDS

SOG

Remark

9 720 x 400 @ 70 Hz, 31.5 KHz 　 　 　 　

10 720 x 480 @ 60 Hz, 31.5 KHz 　 DTV

11 720 x 576 @ 50 Hz, 31.3 KHz 　 DTV

12 800 x 600 @ 56 Hz, 35.1 KHz 　 　 　 　 DMT

13 800 x 600 @ 60 Hz, 37.9 KHz 　 　 　 　 DMT

14 800 x 600 @ 72 Hz, 48.1 KHz 　 　 　 　 DMT

15 800 x 600 @ 75 Hz, 46.9 KHz 　 　 　 　 DMT

16 832 x 624 @ 75 Hz, 49.7 KHz 　 　 　 　 MAC

17 1024 x 768 @ 60 Hz, 48.4 KHz 　 　 　 　 DMT

18 1024 x 768 @ 70 Hz, 56.5 KHz 　 　 　 　 DMT

19 1024 x 768 @ 75 Hz, 60 KHz 　 　 　 　 DMT

20 1152 x 864 @ 75 Hz, 67.5 KHz 　 　 　 　 DMT

21 1152 x 870 @ 75 Hz, 68.7 KHz 　 　 　 　 For MAC

22 1152 x 900 @ 67 Hz, 62.5 KHz 　 　 　 　 For SUN

23 1280 x 720 @ 50 Hz, 37.5 KHz 　 DTV

24 1280 x 720 @ 60 Hz, 45 KHz 　 DTV

25 1280 x 768 @ 60 Hz, 47.8 KHz 　 　 　 　 DMT;

26 1280 x 768 @ 75 Hz, 60.3 KHz 　 　 　 　 DMT;

27 1280 x 960 @ 60 Hz, 59.7 KHz 　 　 　 　 DMT

28 1280 x 960 @ 75 Hz, 75.2 KHz 　 　 　 　

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29 1280 x 1024 @ 60 Hz, 64 KHz 　 　 　 　 DMT

30 1280 x 1024 @ 75 Hz, 80 KHz 　 　 　 　 DMT

31 1440 x 900 @ 60 Hz 55.9 KHz 　 　 　 　 DMT

*1. Tolerance ≧ ±2KHz (if no overlapping issue)

*2. Any timing not in the list, it should display as normal or show on “OUT OF RANGE” OSD message without

blanking.

*3. The image quality of 50Hz mode might be worse than 60Hz.

Primary Presets

1440x900 @ 60Hz

User Presets

Number of User Presets (recognized timings) Available: 10 presets total in FIFO configuration

Changing Modes

● Maximum Mode Change Blank Time for image stability : 5 seconds (Max), excluding “Auto

Adjust” time

● Under DOS mode (640 x 350, 720 x 400 & 640 x 400), it should recall factory setting when

execute “Auto Adjust”

● The monitor needs to do “Auto Adjust” the first time a new mode is detected

(see section “0-Touch™ Function Actions”)

● While running Change Mode, Auto Adjust or Memory Recall, the image shall blank

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2.6 FRONT PANEL CONTROLS AND INDICATORS

Front Panel Hardware Controls

Power Switch (Front Head)

Power LED (Front Head)

Front Panel Controls (Head)

[;X] [ 1 ] [▲] [▼] [ 2 ] [

Reaction Time

]

Power Control, soft Power Switch.

Blue – ON

Orange – Power Saving Mode

Dark = Soft Power Switch OFF

;X] Mute

[ ] Power
[ 1 ] BUTTON 1
[ 2 ] Button 2
[▲] UP ARROW BUTTON

[▼] DOWN ARROW BUTTON

Note: Power Button, Button 1 and Button 2 must be

one-shot logic operation. (i.e. there should be no

cycling)

OSD must fully appear within 0.5s after pushing Button

1

Short Cuts Function from the button(s)

[2] Input toggle (Analog or Digital; refer to Appendix D)

[▼] or [▲] Brightness/Contrast adjust

[▼]+ [▲] recall both of Contrast and Brightness to default

[1] + [2] toggle 720x400 and 640x400 mode when input 720x400 or

640x400 mode (70Hz only)

[1] + [▼] + [▲] White Balance. (Not shown on user’s guide)

[1] + [▼] Power Lock

[1] + [▲] OSD Lock

No signal + [2] + [ ] Burning mode

Signal + [2] + [ ] Factory Mode

Remark : All the short cuts function are only available while OSD off

Function descriptions

Main Menu Controls

The Main Menu OSD includes most of control functions.

Please refer to APPENDIX C (Main Menu OSD Table) for the detail.

OSD Lock short cuts function for the buttons

The OSD lock will be activated by pressing the front panel control buttons "(1), & (▲)"

for 10 seconds. If the user then tries to access the OSD by pressing any of the buttons

"1", "▼", "▲", "2" a message will appear on the screen for 3 seconds showing "OSD

Locked". The OSD lock will be deactivated by pressing the front panel control buttons

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"(1), & (▲)" again for 10 seconds.

Note1: When the OSD is locked will lock all functions, including “Volume” and “Mute”

Note 2: Status bar indicating OSD Lock or Unlock is in progress and when complete

it will indicate “OSD Locked”

Note 3: OSD Lock should not lock Power Button and Power Lock function

Power Lock short cuts function for the buttons

The power button lock will be activated by pressing the front panel control buttons "(1),

& (▼)" for 10 seconds. Locking the power button means that the user won't be able to

turn off the LCD while the power button is locked. If the user presses the power button

while it is locked, a message will appear on the screen for 3 seconds showing "Power

Button Locked". It also means that with the power button locked, the LCD would

automatically turn back "On" when power is restored after a power failure. If the power

button is not in the locked mode, then power should return to it's previous state when

power is restored after a power failure. The power button lock will be deactivated by

pressing the front panel control buttons "(1), & (▼)" again for 10 seconds.

Note 1: Status bar indicating Power Button lock or unlock is in progress and when

complete it will indicate “Power Button Locked”

Note 2: Power should only be lockable in the “On State”

Memory Recall Actions

Memory Recall action on the analog and digital mode as below

1. Recall white balance to factory setting

2. Set the factory defaults as shown in Section 4-8

3. Clean all the mode setting buffer

4. Execute Auto Image Adjust

Note: Memory Recall should have no effect for Language, Power Lock, User Color

Settings or Input Priority

Input Signal Notice Actions

1. The Input Signal Notice OSD appears 3 seconds when power turns on or change

input signal.

2. The Input Signal Notice OSD position is on the right-bottom side of image. And the

OSD background shall be transparent. (OSD Background = off).

Resolution Notice Actions

1. Resolution Notice OSD should show on screen after changing to non-native mode

for 30 sec

2. For auto input select function, it shall meet the requirement in Appendix D.

3. The OSD should disappear after 10 sec or by pushing button [1] or [2]

Resolution Notice function should be disabled when push button [2] under Resolution

Notice OSD

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0-Touch™ Function Actions

1. Execute Auto Image Adjust when new mode detected, and save the settings to

buffer for further use

2. It should be reset by Memory Recall function

(Should not reset by power off, power unplug and others)

OSD Auto Save

The OSD shall save new settings when it is turned off by the user or when it times out.

There shall not be a separate save

Factory Defaults

Item Defaults Item Defaults

Contrast 70% Input Priority N/A

Brightness 100% Resolution Notice On

Color Temperature 6500K Volume 50%

Sharpness 100% Balance N/A

OSD H. Position 50% Treble N/A

OSD V. Position 50% Bass N/A

OSD Time Out 15 720x400 / 640x400 720x400
OSD Background On

2.7 AUDIO INTERFACE (SPEAKER SPECIFICATION)

Line input connection 3.5 mm stereo jack

Line input signal 1.0 Vrms

Line input impedance 10 kOhm

Maximum power output (Electric) 1.5 W / ch

Signal to Noise Ratio 50 dB

Frequency response 100 Hz – 20 Khz

Distortion < 10 % THD (@1kHz)

Vibration

Screen image

There should be no audible vibration with volume at 100% and

treble / bass at default.

There should be no affect on the screen image stability under any

conditions.

Connector PC99 requirement Audio in Lime Green pantone # 577C

Cable type / length 3.5mm stereo cable / 1.8m length

Audio DPMS

Speakers should be off when the rest of the monitor is in power

saving.

* No any sympathetic or abnormal noise allowed.

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TFT LCD PANEL

1st Source Panel

Model number CMO M190A1-L02

Type Active Matrix TFT, TN technology

Active Size 19” Wide (410.4mm x 256.5mm)

Pixel Arrangement RGB Vertical Stripe

Pixel Pitch 0.285 mm

Glass Treatment Anti-Glare, Hard coating (3H)

# of Backlights 4 CCFL

Backlight Life 40000 Hrs (Min)

300 cd/m2 (Typ after 30 minute warm up) Luminance (Center) –

CT = 6500K,

Contrast/ Brightness = Max

230 cd/m2 (Min after 30 minute warm up)

Brightness Uniformity (13 points) 77 % (Typ) / 67 % (Min)

Contrast Ratio 700 :1 (Typ)
500 : 1 (Min)

Color Depth 16.2 million colors (6+2 bit panel)

Horizontal Viewing Angle 150 degrees (Typ) / 130 degrees (Min) @ CR>10

Vertical Viewing Angle 130 degrees (Typ) / 120 degrees (Min) @ CR>10

Response Time

On-Off

10%-90% @ Ta=25°C 5ms (Typ) / 15ms (Max)

Mercury 3.0 mg per lamp

Panel Defects Please see Panel Quality Specifications.

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3. Front Panel Function Control Description

Adjusting the Screen Image

Main Menu

with OSD controls

Front Control Panel

shown below in detail

Standby Power On/Off
Power light
Blue = ON
Orange = Power Saving

Audio Mute button turns the sound off

Displays the Main Menu or exits the control screen and saves
adjustments.

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

Displays the control screen for the highlighted control.
Also toggles between two controls on some screens.
Also a shortcut to toggle analog and digital connection.

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Do the following to adjust the display setting:

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

NOTE: All OSD menus and adjustment screens disappear automatically after about 15

seconds. This is adjustable through the OSD timeout setting in the setup menu.

2. To select a control to adjust, pressSorTto scroll up or down in the Main Menu.

3. After the desired control is selected, press button [2]. A control screen like the one shown

below appears.

The command line at the bottom of the
control screen tells what to do next from
this screen. You can toggle between control
screens, adjust the selected option, or exit
the screen.

4. To adjust the setting, press the up S or down T buttons.

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

The following tips may help you optimize your display:

• Adjust the computer's graphics card so that it outputs a 1440 x 900 @ 60Hz video signal to
the LCD display. (Look for instructions on “changing the refresh rate” in the graphics card's
user guide.)

• If necessary, make small adjustments using H. POSITION and V. POSITION until the
screen image is completely visible. (The black border around the edge of the screen should
barely touch the illuminated “active area” of the LCD display.)

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Main Menu Controls

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

Control Explanation

Auto Image Adjust sizes and centers the screen image automatically.

Contrast adjusts the difference between the image background (black level)

and the foreground (white level).

Brightness adjusts background black level of the screen image.

Input Select toggles between inputs if you have more than one computer

connected to the VG1930wm.

Audio Adjust
Vol ume increases the volume, decreases the volume, and mutes the audio.
Mute temporarily silences audio output.

Color Adjust provides several color adjustment modes, including preset color

temperatures and a User Color mode which allows independent adjustment of
red (R), green (G), and blue (B). The factory setting for this product is 6500K
(6500 Kelvin).

sRGB-This is quickly becoming the industry standard for color management,
with support being included in many of the latest applications. Enabling this
setting allows the LCD display to more accurately display colors the way they
were originally intended. Enabling the sRGB setting will cause the Contrast and
Brightness adjustments to be disabled.

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Control Explanation

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

6500K-Adds red to the screen image for warmer white and richer red.

5400K-Adds green to the screen image for a darker color.

5000K-Adds blue and green to the screen image for a darker color.

User Color Individual adjustments for red (R), green (G), and blue (B).

1. To select color (R, G or B) press button [2].

2. To adjust selected color, pressSandT.

Important: If you select RECALL from the Main Menu when the product is

set to a Preset Timing Mode, colors return to the 6500K factory preset.

Information displays the timing mode (video signal input) coming from the
graphics card in the computer, the LCD model number, the serial number, and
the ViewSonic® website URL. See your graphics card’s user guide for
instructions on changing the resolution and refresh rate (vertical frequency).

NOTE: VESA 1680 x 1050 @ 60Hz (recommended) means that the resolution is

1680 x 1050 and the refresh rate is 60 Hertz.

Manual Image Adjust Sub-menu

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Control Explanation

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

H./V. Position (Horizontal/Vertical Position) moves the screen image left or

right and up or down.

Fine Tune sharpens the focus by aligning text and/or graphics with pixel
boundaries.

NOTE: Try Auto Image Adjust first.

Sharpness adjusts the clarity and focus of the screen image.

Setup Menu displays the menu shown below:

Language Select allows the user to choose the language used in the menus and

control screens.

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Control Explanation

Resolution Notice allows the user to enable or disable this notice.

If you enable the Resolution Notice shown above and your computer is set at a

resolution other than 1440 x 900, the following screen appears.

OSD Position allows the user to move the OSD menus and control screens.

with a “30 second” setting, if a control is not pushed within 30 seconds, the

OSD Timeout sets the length of time the OSD screen is displayed. For example,

display screen disappears.

OSD Background allows the user to turn the OSD background On or Off.

Memory Recall returns the adjustments back to factory settings if the display is

operating in a factory Preset Timing Mode listed in the Specifications of this
manual.

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4. Circuit Description

The TSUM56AL is total solution graphics processing IC for LCD monitors with panel resolutions up to SXGA. It is

configured with a high-speed integrated triple-ADC/PLL, an integrated DVI receiver, a high quality display processing engine,

and an integrated output display interface that can support LVDS panel interface format. To further reduce system costs, the

TSUM56AWHL-LF-1 also integrates intelligent power management control capability for green-mode requirements and

spread- spectrum support for EMI management.

The TSUM56AL incorporates the world’s first coherent oversampled RGB graphics ADC in a monitor controller system. The

oversampling ADC samples the input RGB signals at a frequency that is much higher than the signal source pixel rate. This

can preserve details in the video signal that ordinarily would be lost due to input signal jitter or bandwidth limitations in

non-oversampled systems. The TSUM56AL also incorporates a new Dynamic Frame Rate (DFR) generator

output video to the display panel that preserves the advantages of a fixed output clock rate, while eliminating the output end of

frame short-line.

for the digital

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Analog EDID

Time: 15:51:56
Date: Mon Oct 23, 2006
______________________________________________________________________
______________________________________________________________________
VIEWSONIC CORPORATION
EDID Version # 1, Revision # 3
DDCTest For: ViewSonic VG1930wm
______________________________________________________________________
______________________________________________________________________
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 | 1E 9D 01 01 01 01 01 10 01 03
20 | 0E 29 1A 78 2E E5 B5 A3 55 49
30 | 99 27 13 50 54 BF EF 80 95 00
40 | 95 0F 81 80 81 40 71 4F 01 01
50 | 01 01 01 01 9A 29 A0 D0 51 84
60 | 22 30 50 98 36 00 9A 00 11 00
70 | 00 1C 00 00 00 FF 00 51 43 36
80 | 30 36 30 31 30 30 30 30 31 0A
90 | 00 00 00 FD 00 32 4B 1E 52 0E
100 | 00 0A 20 20 20 20 20 20 00 00
110 | 00 FC 00 56 47 31 39 33 30 77
120 | 6D 0A 20 20 20 20 00 DD

(08-09) ID Manufacturer Name ________________ = VSC
(11-10) Product ID Code _____________________ = 9D1E
(12-15) Last 5 Digits of Serial Number ______ = Not Used
(16) Week of Manufacture _________________ = 01
(17) Year of Manufacture _________________ = 2006
(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, Composite Sync, Sync on Green
(21) Maximum Horizontal Image Size ________________ = 410 mm
(22) Maximum Vertical Image Size __________________ = 260 mm

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(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 - 0.640 Green X - 0.286 Blue X - 0.154 White X - 0.313
Red Y - 0.334 Green Y - 0.599 Blue Y - 0.077 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:
1440 X 900 @60Hz
1440 X 900 @75Hz
1280 X 1024 @60Hz
1280 X 960 @60Hz
1152 X 864 @75Hz
Not Used
Not Used
Not Used

(54-71) Detailed Timing / Descriptor Block 1:
1440x900 Pixel Clock: 106.50 MHz

Horizontal Image Size: 410 mm Vertical Image Size: 256 mm
Refreshed Mode: Non-Interlaced Normal Display - No Stereo

Horizontal:

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Active Time: 1440 pixels Blanking Time: 464 pixels
Sync Offset: 80 pixels Sync Pulse Width: 152 pixels
Border: 0 pixels Frequency: 55.93 KHz

Vertical:
Active Time: 900 lines Blanking Time: 34 lines
Sync Offset: 3 lines Sync Pulse Width: 6 lines
Border: 0 lines Frequency: 59.89 Hz

Digital Separate, Horizontal Polarity (-) Vertical Polarity (+)

(72-89) Detailed Timing / Descriptor Block 2:

Monitor Serial Number:
QC6060100001

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

Monitor Range Limits:
Min Vertical Freq - 50 Hz
Max Vertical Freq - 75 Hz
Min Horiz. Freq - 30 KHz
Max Horiz. Freq - 82 KHz
Pixel Clock - 140 MHz
Secondary GTF - Not Supported

(108-125) Detailed Timing / Descriptor Block 4:

Monitor Name:
VG1930wm

(126) No Extension EDID Block(s)
(127) CheckSum OK

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Digital EDID

Time: 15:52:31
Date: Mon Oct 23, 2006

VIEWSONIC CORPORATION
EDID Version # 1, Revision # 3
DDCTest For: ViewSonic VG1930wm

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 | 1E 9D 01 01 01 01 01 10 01 03
20 | 80 29 1A 78 2E E5 B5 A3 55 49
30 | 99 27 13 50 54 BF EF 80 95 00
40 | 95 0F 81 80 81 40 71 4F 31 0A
50 | 01 01 01 01 9A 29 A0 D0 51 84
60 | 22 30 50 98 36 00 9A 00 11 00
70 | 00 1C 00 00 00 FF 00 51 43 36
80 | 30 36 30 31 30 30 30 30 31 0A
90 | 00 00 00 FD 00 32 4B 1E 52 0E
100 | 00 0A 20 20 20 20 20 20 00 00
110 | 00 FC 00 56 47 31 39 33 30 77
120 | 6D 0A 20 20 20 20 00 32

(08-09) ID Manufacturer Name ________________ = VSC
(11-10) Product ID Code _____________________ = 9D1E
(12-15) Last 5 Digits of Serial Number ______ = Not Used
(16) Week of Manufacture _________________ = 01
(17) Year of Manufacture _________________ = 2006
(10-17) Complete Serial Number ______________ = See Descriptor Block
(18) EDID Version Number _________________ = 1
(19) EDID Revision Number ________________ = 3
(20) VIDEO INPUT DEFINITION:
Digital Signal
Non - VESA DFP 1.x Compatible

(21) Maximum Horizontal Image Size ________________ = 410 mm
(22) Maximum Vertical Image Size __________________ = 260 mm
(23) Display Gamma ________________________________ = 2.20
(24) Power Management and Supported Feature(s):

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Active Off/Very Low Power, Standard Default Color Space,
Preferred Timing Mode
Display Type = R/G/B Color
(25-34) CHROMA INFO:
Red X - 0.640 Green X - 0.286 Blue X - 0.154 White X - 0.313
Red Y - 0.334 Green Y - 0.599 Blue Y - 0.077 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:
1440 X 900 @60Hz
1440 X 900 @75Hz
1280 X 1024 @60Hz
1280 X 960 @60Hz
1152 X 864 @75Hz
640 X 400 @70Hz
Not Used
Not Used
______________________________________________________________________
(54-71) Detailed Timing / Descriptor Block 1:
1440x900 Pixel Clock: 106.50 MHz
______________________________________________________________________
Horizontal Image Size: 410 mm Vertical Image Size: 256 mm
Refreshed Mode: Non-Interlaced Normal Display - No Stereo

Horizontal:
Active Time: 1440 pixels Blanking Time: 464 pixels

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Sync Offset: 80 pixels Sync Pulse Width: 152 pixels
Border: 0 pixels Frequency: 55.93 KHz

Vertical:
Active Time: 900 lines Blanking Time: 34 lines
Sync Offset: 3 lines Sync Pulse Width: 6 lines
Border: 0 lines Frequency: 59.89 Hz

Digital Separate, Horizontal Polarity (-) Vertical Polarity (+)

______________________________________________________________________
(72-89) Detailed Timing / Descriptor Block 2:

Monitor Serial Number:
QC6060100001

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

Monitor Range Limits:
Min Vertical Freq - 50 Hz
Max Vertical Freq - 75 Hz
Min Horiz. Freq - 30 KHz
Max Horiz. Freq - 82 KHz
Pixel Clock - 140 MHz
Secondary GTF - Not Supported

______________________________________________________________________
(108-125) Detailed Timing / Descriptor Block 4:

Monitor Name:
VG1930wm

(126) No Extension EDID Block(s)
(127) CheckSum OK

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5. Adjustment Procedure

Function Test and Alignment Procedure

1. All Modes Reset
You should do “All Model Reset” (Refer to Chap 3. Hot Keys for Function Controls) first. This action will allow
you to erase all end-user’s settings and restore the factory defaults.

2. Auto Image Adjust
The Auto Adjust is aimed to offer a best screen quality by built-in ASIC. For optimum screen quality, the user
has to adjust each function manually.

A.Turn the computer and LCD monitor on.
B. Press the ‘Auto Image Adjust’ OSD function to Auto Adjust.
C. The LCD monitor will start the Auto Adjust process automatically and run for 10 consecutive seconds, during

which time you will notice the image change.

3. Firmware
Test Patten: Burn in Model (Refer to Chap3. Hot Keys for Function Control)

-Make sure the F/W is the latest version.

4. DCC
Test Patten: EDID program

-Make sure it can pass test program.

5. Window Shut Down
Test Signal:
Test Pattern:

1400*900@60Hz

Checkered Pattern Every One Pixel (50%Green & 50%Blue)
Inspection Item: Flicker, Mura

6. Window BG
Test Signal:
Test Pattern:

Window standard pattern
Inspection Item: Line Defect, Function Defect & Mura

7. 25 Gray
Test Signal:
Test Pattern:

Full Screen 25% White (Gray)
Inspection Item: Particle, Line Defect & Mura

8. 50 Gray
Test Signal:
Test Pattern:

1400*900@60Hz

1400*900@60Hz

1400*900@60Hz

Full Screen 50% White (Gray)
Inspection Item: Bright Dot, Particle, Line Defect & Mura

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9. White Box
Test Signal: 1400*900@60Hz
Test Pattern:

Window standard pattern
Inspection Item: Particle, Line Defect, Power, Image Remain & Mura

10. Black Box
Test Signal:
Test Pattern:

Window standard pattern
Inspection Item: Bright Dot, Line Defect & Power

11. RED
Test Signal:
Test Pattern:

Full Screen Red
Inspection Item: Bright Dot, Partial & Line Defect

12. Green
Test Signal:
Test Pattern:

1400*900@60Hz

1400*900@60Hz

1400*900@60Hz

Full Screen Green
Inspection Item: Bright Dot, Partial & Line Defect

13. Blue
Test Signal:
Test Pattern:

Full Screen Green
Inspection Item: Bright Dot, Partial & Line Defect

14. Gray_Scale_0-100_V64
Test Signal:
Test Pattern:

Vertical 64 (256) Gray Scale (Right → Left，From 0 to 100% White)
Inspection Item: Line Defect & Function Defect

1400*900@60Hz

1400*900@60Hz

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15. Function Test Display pattern

Item Pattern Description Remark

1

2

3

4

5

6

7

8

Gray_Scale_0-100_V

Gray_Scale_0-100_H

Black Full Screen Black Figure 3

Red Full Screen 50% Red Figure 4

Green Full Screen 50% Green Figure 5

Blue Full Screen 50% Blue Figure6

White Full Screen White Figure7

Black_Tile Black Tile Under White Background Figure 8

Vertical 64 (256) Gray Scale (右→左，From 0 to 100% White)

Horizontal 64 (256) Gray Scale (上→下，From 0 to 100% White)

Figure 1

Figure 2

Figure 1

Figure 2

Figure 3 Figure 4

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Figure 5 Figure 6

Figure 7 Figure 8

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BIOS update procedure

1. To setup ISP environment

Hardware:

PC or Notebook , Parallel(Printer) cable , ISP tool( Fig 1)

Software:

ISP driver .

If the O.S. was Win2000 or Win XP please have to install

PORT95NT.exe

Fig1

In order to ensure can execute ISP program, please set BIOS in PC or Notebook as Fig 2

Fig 2

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2. Install ISP

2.1 User could download ISP driver and PORT95NT install file from Myson Century website (http://www.myson.com.tw/)

2.2 After extracting the zip file, the total files list as Fig 2.2, and double click the file of setup.exe to install.

2.3 Press “Next＂ button to continue., see Fig 2.3

Fig 2.2

Fig 2.3

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2.4 Keep default setting or press “Change＂ button for selecting the path that you want , and then

press“Next＂button to continue, see Fig 2.4.

2.5 Press “Install＂ button to continue, see Fig 2.5

Fig 2.5

Fig 2.4

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2.6 The Installer Information shows package warning, press “Ignore＂ button to continue, see Fig 2.6.

Fig 2.6

2.7 Installation has finished, press “Finish＂ button, see Fig 2.7.

Fig 2.7

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3. ISP security code

3.1 After installation, we could find the shortcut in the setting path or the program bar (default setting),

see Fig 3.1.

Fig 3.1

2.2 Security file is a key to use ISP function, press “確定＂ button, see Fig 3.2.

Fig 3.2

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3.3 The warning is used to remind user of that different CPU rate may cause ISP function fail(it is limited by IIC protocol),

press “確定＂ button, see Fig 3.3.

Fig 3.3

2.4 Press“Create Security File＂ button to key in security code. Adjusting bar to decrease speed of IIC bus, see Fig 3.4.

Fig 3.4

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3.5 At least 2 Command No of security code, see Fig 3.5, and different security code between hardware ISP and software ISP.

The security code of software ISP is set by user while coding, but the security code of hardware ISP is set by Myson Century.

Fig 3.5

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3.6 Fig 3.6 shows the setting for security code of hardware ISP, it needs 4 Command No, and key in command sequentially

for 94, 94, AC, CA, 53.

Fig 3.6

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3.7 Fig 3.7 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 detail of setting, please

refer to Section 6 Boot code of ISP.

Fig 3.7

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4. Use ISP to program MCU

4.1 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 Fig 4.1.

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

4.3 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.

Step 2

Step 1

Step 3

Fig 4.1

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5 Use ISP to read MCU content

5.1 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 Fig 5.1.

Fig 5.1

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5.2 If user uses hardware ISP to read MCU content, it shows as Fig 5.2.

Fig 5.2

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6 Re-entry the ISP Mode

When you could not select or click ｀Reset MCU＇ button and enter ISP mode again, you refer 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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7. Boot code of ISP

7.1 Hardware ISP

(1) Without boot code

(2) Fixed security code: 94, 94, AC, CA, 53

(3) Attention to the pin of HSCL (1) and HSDA (1) should keep in enable

(4) MTV412M, MTV512M, CS8954 support hardware ISP

7.2 Software ISP

(1) With boot code

(2) User define the security code

(3) Attention to the pin of HSCL (1) and HSDA (1) should keep in enable

(4) Only software ISP could read the MCU content

(5) MTV212M, MTV312M, MTV230M, MTV412M, MTV512M, CS8954 support software ISP

7.3 Boot code of software ISP

(1) Initialize MCU

(a) Define the I/O pin to HSCL (1) and HSDA (1)

(b) Define the slave B address

(c) Enable 8051 INT1 (ISR 2)

(2) Coding for INT1 while get into ISP mode

(a) Clear watchdog to prevent reset during ISP period

(b) Disable all interrupt to prevent CPU wake-up

(c) Write ISP slave address

(d) Write 93h to ISP enable address to enable ISP

(e) Enter 8051 idle mode

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7.4 The followings show the relationship between the code and the security code.

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8. ISP Adaptor Schematic

9. Adaptor Linking

The Monitor Set

Connect with
VGA Cable
15Pins to 15Pins

ISP Adaptor

Connect with
Printer Cable
25Pins to 25Pins

PC/HOST

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Packing For Shipping And Disassembly Procedure

Packing For Shipping

1. Packing Procedure

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

1.2 Put the monitor in the PE bag and cover the small PE bag on the stand. (Figure 2)

Figure 1 Figure 2

1.3 Fold the left bottom of PE bag’s opening mouth to the back of the monitor. (Figure 3)

1.4 Take the left side cushion and fix it onto the left side of the monitor. (Figure 4)

Figure 3 Figure 4

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1.5 Fold the right side PE bag to the back of monitor, and pull the PE bag’s opening mouse to the back of the

monitor.(Figure5)

1.6 Take the left side cushion and fix it onto the left side of the monitor.( Figure 6)

Figure 5 Figure6

1.7 Put the monitor into the carton, panel screen should face to carton handle side, as last, close the carton. (Figure 7)

Figure 7

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Monitor Assembly and Disassembly

1 Separate Stand Assy

Step 1 :

Separate the Stand Cover.

Step 2 :

Loose the Stand 4 Screws

Step 3 :

Completed.

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2 Separate Bezel

Step 1 :

Loose Rear Cover 2 Screws.

Step 2 :

Separate the front Bezel hooks to

take Bezel and Panel apart.

Step 3:

Separate the side hooks of Bezel to

take Bezel and Rear Cover apart.

Step 4 :

Completed.

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3 Remove Panel

Step 1 :

Disassemble 2 screws of bottom of panel and

lift up Panel from Rear cover

Step 2 :

Remove 2 pieces Backlight Wires

and A/D Board connect Wire.

Step3 :

Completed.

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4 Remove Power key Board and function key Board

Step 1 :`

Remove 2 pieces Wires of Power Key

Board

Step 2 :`

Remove connect wire of Power Key Board

Step 3 :`

Remove Wire of Power Key Board

Step4:

Completed.

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5 Separate Metal Cover

Step1:`

Loose all Screws of support plate

and Metal Cover

Step2:`

Remove Support plate

Step3:`

Separate Metal Cover

Step4:`

Completed.

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6 Remove Lips Board And A/D Board

Step 1 :

Loose 4 Screws of Lips Board

Step 2 :

Loose 3 Screws of A/D Board

Step 3 :

Completed

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7 Change Lips Board and A/D Board

Step 1 :

Place new A/D Board and fasten

4 screws (wihte-Left,red-Right)

Step 2 :

Assemble Lips Board

`

Step 3 :

Completed

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8 Assemble Metal Cover and Support plate

Step 1 :

Assemble Metal Cover

Step 2 :

Assemble Support plate

Step 3 :

Completed

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9 Assemble Power key Board and function key Board

Step 2:

Insert the wire of Power key

Board

Step 2:

Place new Power key Board on

Bezel hooks

Step 3:

Insert 2 pieces Audio wires of

Power Key Board

Step 4:

Insert connect wire of

Power Key Board

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Step5:

Insert the connect wire of

Key Board

Step6:

Assemble Key Board of

Bezel hooks

Step7:

Completed

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10 Assemble Panel

Step 1 :

Insert 1 piece of Backlight

wires

Step 2 :

Insert Wires of A/D Board

Step 3 :

Insert another piece backlight

wire of Lips Board

Step 4 :

Completed.

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11 Assemble Bezel

Step 1 :

Place the rear cover and Assembly

the right hooks of the Bezel first .

Step 2 :

Assemble Bezel hooks

Bezel and Panel apart.

Step 3 :

Completed.

12 Assemble Stand and Hinge Cover

Step 1 :

Assemble Stand

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Step2 :

Assemble Hinge Cover

Step 3:

Completed.

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6. Troubleshooting Flow Chart

p

Defect Mode Failure Analysis Repair Testing

Light On Test

※ “ Panel Change” Should be Performed to Level 3 Repair

Flash Dots

Abnormal

Display

Bright Dot

Dark Dot

Backlight

Light Leakage

Mura

Image Sticking

Brightness spot

Particle

Dot Defect

Image Remain

Group Bright
Dots

Others Cosmetics

Check Panel

Panel Change

Defect

NG

Next Ste

A

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TEST

Completed

A

p

A

Defect Mode Failure Analysis Repair Testing

※ “ Panel Change” Should be Performed to Level 3 Repair

A

Display Noise

Power on
Display
Abnormal

Flicker

Beat Display
Flicker

Beat Display
Shut Down

Display Wave

Check PCB

Check Panel

Check PCB

AD/B Change

LIPS Change

CNT/B Change

Panel Change

AD/B Change

LIPS Change

CNT/B Change

Panel Change

LIPS Change

No Backlight

Check Panel

Check LIPS

NG

Next Ste

B

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TEST

Completed

A

p

A

A

A

A

Failure Analysis Repair Testing

※ “ Panel Change” Should be Performed to Level 3 Repair

B

Display White
Out

Booting Delay

Brightness
Even
Abnormal

Beat Display
No Backlight

Check PCB

Check PCB

Check PCB

Check Panel

AD/B Change

LIPS Change

AD/B Change
LIPS Change

Panel Change

No signal

R.G.B
Display
Abnormal

Gray Scale
Display

bnormal

Check LIPS

Check PCB

Check Wire

Check Panel

Next Ste

LIPS Change

AD/B Change

CNT/B Change

VGA cable

DVI cable

Panel Change

NG

TEST

C

Completed

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A

p

A

A

Defect Mode Failure Analysis Repair Testing

※ “ Panel Change” Should be Performed to Level 3 Repair

C

Horizontal
Line Defect

Vertical
Weak Line

Horizontal
Weak Line

Vertical
Band Defect

Horizontal
Band Defect

Power Saving
Display
Abnormal

Peculiar Smell

Check PCB

Check Panel

Check PCB

Check PCB

AD/B Change

Panel Change

AD/B Change

AD/B Change

LIPS Change

NG

Next Ste

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TEST

Complete

r

r

p

Defect Mode Failure Analysis Repair Testing

※ “ Panel Change” Should be Performed to Level 3 Repair

AD/B Change

LIPS Change

Power ON/OFF

Abnormal

LED Display

Abnormal

No Powe

Turn Off
Abnormal

LED Off

Check PCBA

Check PCBA

Check Wire

Check LIPS

Check PCBA

CNT/B Change

LED/B Change

CNT/B Cable

LIPS Change

AD/B Change

LIPS Change

LED Dark

LED/B Change

LED Abnormal

LED Loss

LED Flicke

Check Wire

CNT/B Cable

LIPS Change

NG

Next Ste

68

ViewSonic Corporation Confidential - Do Not Copy VG1930wm-3

TEST

Completed

p

p

Defect Mode Failure Analysis Repair Testing

※ “ Panel Change” Should be Performed to Level 3 Repair

Abnormal BIOS

&OSD

OSD Key
Unavailable

OSD Can’t
Input

OSD Can’t
Read

OSD No
Display

OSD Jiggle

OSD Display
Abnormal

Check PCB

Check Wire

Check BIOS

AD/B Change

CNT/B Change

LIPS Change

CNT/B cable

LVDS cable
VGA cable

DVI cable

BIOS Update

Abnormal

Louds

eaker

Voice Loss

Abnormal
Loud

L/R
Abnormal

No Voice

L/R Same
Volume

Loudspeaker
Noise

Check PCBA

Check Wire

Check Loudspeaker

Next Ste

AD/B Change
CNT/B Change

LIPS Change

C/B Cable Change

Loudspeaker
Change

NG

TEST

Completed

69

ViewSonic Corporation Confidential - Do Not Copy VG1930wm-3

Defect Mode Failure Analysis Repair Testing

A

p

※ “ Panel Change” Should be Performed to Level 3 Repair

Other Abnormal

Display

Display Shut
Down

Display Flicker
((tapping )

DVI Signal
Display
Abnormal

Check PCB

Check Panel

Check PCBA

Check Panel

Check PCB

AD/B Change

LIPS Change

CNT/B Change

Panel Change

AD/B Change

CNT/B Change

Panel Change

AD/B Change

EDID Update

NG

Next Ste

70

ViewSonic Corporation Confidential - Do Not Copy VG1930wm-3

TEST

Complete

Trouble Shooting Analysis

Check the information in this section to see if the problems can be solved before requesting repair.

Note： The consumers are only allowed to solve the problems described as below. Any unauthorized product

modification, or failure to follow instructions supplied with the product will end the warranty immediately.

z No image

 Make sure power button is ON.
 Check whether the LCD monitor and computer power cords are plugged and whether there is a supply of power.

z No Signal Input

 Check the signal connection between the computer and LCD monitor.

z “Out of Range”

 Check the computer image output resolution and frequency and compare the value with the preset values (Please

refer to [Appendix-Display Mode]).

z Fuzzy Image

 Adjust Phase.

z Image too bright

 Adjust brightness and contrast by OSD.

z Image too dark

 Adjust brightness and contrast by OSD.

z Irregular image

 Check the signal connection between the computer and LCD monitor.
 Perf orm Auto Adjust.

z Distorted image

 Reset the LCD monitor
 Take off extra accessories (such as signal extension cord).

z Image is not centered

 Use OSD Image Menu to adjust H_Position and V_Position.
 Check image size setting.
 Perf orm Auto Adjust.

z Size is not appropriate

 Use OSD Image Menu to adjust H_Position and V_Position.
 Check image size setting.
 Perform Auto Adjust.

z Uneven color

 Use OSD Color Menu to adjust color setting.

z Color too dark

 Use OSD Color Menu to adjust color setting.

z Dark area distorted

 Use OSD Color Menu to adjust color setting.

z White color is not white

 Use OSD Color Menu to adjust color setting.

71

ViewSonic Corporation Confidential - Do Not Copy VG1930wm-3

7. Block Diagram

VSC VG1930wm-3 A/D Board BLOCK DIAGRAM

VCC3.3

KEY PAD

AC TO DC POWER

+12V

+5V

+3V3

VCC3.3

+5V

VCC1.8

+5V

VCC1.8

VCC3.3

+12V

+5V

+5V

+12V

AUDIO_MUTE

B4

Volume

2.AUDIO

Volume

AUDIO_MUTE

PA[0..9]

B5

PA[0..9]

PA[0..9]

VLCD

VCC3V3

PB[0..9]

VCC_TEST&ODCTR L

VLCD

4.PANEL INTERFACE

PB[0..9]

LVDS OUTPUT

PB[0..9]

VCC_TEST&ODCTR L

RIN

B04

RIN

B03

GNDB

SDA_A

SCL_A

B+B-G+G-R+R-CLK+

CLK-

SDA_D

SCL_D

DET_DVI

DET_VGA

on_BACKLIGHT

VCTRL

adj_BACKLIGHT

on_PANEL

6.SCALER

B-

R-

G-

B+

R+

BIN

GIN

SOG

GNDB

GNDR

GNDG

VSYNC

HSYNC

DVI5V

G+

CLK-

SCL_A

SDA_A

DVI5V

VGA5V

CLK+

SDA_D

SCL_D

DET_DVI

DET_VGA

VCTRL

VGA5V

3.INPUT

on_Panel

on_BACKLIGHT

Adj_BACKLIGHT

+5V

DVI5V

VGA5V

B02

DVI5V

VGA5V

+5V

+12V

VCC1.8

VCC3.3

+12V

BACKLIGHT CONTROL

INVERTER

VLCD

5.POWER

HSYNC

GIN

SOG

VSYNC

GNDG

BIN

GNDR

VCC3.3

VCC1.8

VLCD

72

ViewSonic Corporation Confidential - Do Not Copy VG1930wm-3

8. Schematic Diagrams

CN2
SCJ-0356M5(B)

1
2
3
4
5

U_GND

CN13

3
2
1

PITCH 2.0 180

U_GND

+5Vau

+12V 6

度

U11

213

GIO

+

TC23

220uF/16V/NC

+5Vau +5V

FB10

120 OHM BEAD

Connect the net +5Vau & +5V

Vau

Vau

R11 4.7K

1

+5V

R7

22K

3

Q2

MMBT3904L

2

U_GND

CN14

PITCH 2.0 180

去掉得元件

+5V 4,6,7

1
2
3

U_GND

度

Shutdown

R9

NC -> 1K

U_GND

06/08/17

UTC7805/NC

RIGHTIN

LEFTIN VOL

VOR

L1

1 2

BW FCM1608K-300T07

L2

1 2

BW FCM1608K-300T07

Volume7

1uF

C2

C4 1uF

+5V

R8

10K

R2 20K

R4 20K

R10

4.7K

U_GND

R12

2K

Shutdown

+5V

1

R1

TC33

R5

R6

4.7K

3

Q1

MMBT3904L

2

R13

330

20K -> 33K

2.2uF/16V

+

20K -> 33K

U_GND

R126 300K

4

5

13

6

7

1
8

C1

0.1uF

U_GND

Vol

Vin1

By pass

Vin2

VO2

Shutdown
GND

2

10

15

Vcc

Vcc

PT2300

DC Vol

3

C71

0.1uF

U_GND

U2

Vcc

SE/BTL

C3 0.1uF

14

-OUT1

16

+OUT1

10K -> 100K

R3

12

9

+OUT2

11

-OUT2

Vau

Add the capacitor for balance the Vau & DC Vol

U_GND

CN1

2
1

Rout

CN5

1
2

Lout

Shutdown

TC2

+

+5V

R14

10K---4.7K

R17 4.7K--10K

AUDIO_MUTE7

R15

10K---22K

1

C5

0.1uF

U_GND

3

2

10uF/16V

U_GND

Q4

MMBT3904L

RA1

0R/NC

RA2

0R

Vau

Q3
AO3401

+

U_GND

RA3

TC3
10uF/16V

+5Vau

0R

R18

10K

U_GND

73

ViewSonic Corporation Confidential - Do Not Copy VG1930wm-3

120 OHM BEAD

FB11

U_GND

120 OHM BEAD

L0603 --> L0805

FB1

U_GNDU_GND

ViewSonic Corporation

Model

Title

AUDIO

Date Rev:

B

G

R

R23

R24

75Ω 1/16W

CN6

DB15

SDA_A

HSI

VSI

SCL_A

11

12

13

14

15

1
6
2
7
3
8
4
9
5
10

16

17

R_GND

G_GND

B_GND

R

G

B

VGA5V

HPDVGA

VGA5V

B_GND

G_GND

R_GND

VGA5V 6

3

C13 0.1uF

2

D2
BAV99

1

D3
BAV99

1

3

C15 0.1uF

2

D1
BAV99

1

3

0.1uF

C14

2

75Ω 1/16W

+5V

R29 0/1K

D4

NC/3.6V

R19 56Ω 1/16W

R20 56Ω 1/16W

R21 56Ω 1/16W

R22 470Ω 1/16W C9 1000pF

R25

75Ω 1/16W

R26 100Ω 1/16W

R27 100Ω 1/16W

R28 100Ω 1/16W

C6 0.047uF

C7 0.047uF

C8 0.047uF

C10 0.047uF

C11 0.047uF

C12 0.047uF

BIN 7

GIN 7

RIN 7

SOG 7

GNDB 7

GNDG 7

GNDR 7

GND

3

C23

D14

BAV99

1

120 OHM BEAD -> 0 ohm

D10

1N4148

D42

LL5232B 5.6V 5%

D13

LL5232B 5.6V 5%

3

D15

BAV99

C24

1

2

0.1uF

R32 1K 1/16W

R33 1K 1/16W

R34

2.2KΩ 1/16W

VGA5V

DVI5V

3

3

C25

2

0.1uF

D16

BAV99

1

D17

BAV99

C26

1

2

0.1uF

C18

33pF

R130 10KΩ 1/16W

C83

0.1uF

R36 10KΩ 1/16W

C22

0.1uF

3

D18

BAV99

C27

2

0.1uF

R35

2.2KΩ 1/16W

1

2

0.1uF

3

MMBT3904L

2

3

D19

BAV99

C28

Q13

1

1

C19

220pF -> 33pF

2

0.1uF

100Ω 1/16W

R131

R37 100Ω 1/16W

R141

4K7 -> 100K

HDCP FUNCTION

D20

BAV99

1

3

C30

2

0.1uF

3

C29

D21

BAV99

1

HPD_CTRL

1

4

1

4

1

4

1

4

5

HSYNC 7

VSYNC 7

DET_VGA 7

DET_DVI 7

23

L3

QTC24CE/4P2R 0

23

L4

QTC24CE/4P2R 0

23

L5

QTC24CE/4P2R 0

23

L6

QTC24CE/4P2R 0

+5VGND

R59

10K

D22

3.6V

R39 10Ω 1/16W

R41 10Ω 1/16W

R44 10Ω 1/16W

R46

10Ω 1/16W

R48 10Ω 1/16W

R50

10Ω 1/16W

R53 10Ω 1/16W

R58

10Ω 1/16W

SDA_A7
SCL_A7

LL5232B 5.6V 5%

SDA_D7
SCL_D7

LL5232B 5.6V 5%

G+ 7

R+ 7

R- 7

G- 7

B+ 7

B- 7

CLK+ 7

CLK- 7

SDA_A
SCL_A

D45

D44

C21

ESD

100pF

D47

D43

C82

ESD

100pF

D46

LL5232B 5.6V 5%

D48

D41

ESD

LL5232B 5.6V 5%

D12

ESD

C84

100pF

C20

100pF

SDA_D
SCL_D

ViewSonic Corporation

HSI

VSI

D7

MLL5232B 5.6V

VGA5V
HPDVGA

DVI5V
HPDDVI

CN8

32

Shell

1

RX2-

2

RX2+

3

GND

4

RX4-

5

RX4+

6

SCL

7

SDA

8

VS

9

RX1-

10

RX1+

11

GND

12

RX3-

13

RX3+

5V

GND

HP

RX0-

RX0+

GND
RX5-

RX5+

GND
RXC+
RXC-

RED

GRN

BLU

HS

GND

31

Shell

DVI5V

14
15
16

17
18
19
20
21
22
23
24

25
26
27
28
29

SCL_D
SDA_D

DVI5V

DATA2­DATA2+

DATA1­DATA1+

HPDDVI

DATA0­DATA0+

DCLK+
DCLK-

DVI5V 6

D8

1N4148

MLL5232B 5.6V

DATA0-

DATA1+

DATA1-

DATA2+

DATA2-

DCLK+

DCLK-

FB2

D9

D40

ESD

D11

ESD

DATA0+

DVI-I

2

0.1uF

Model

Title

INPUT

Date Rev:

74

ViewSonic Corporation Confidential - Do Not Copy VG1930wm-3

VLCD

JP1

1
2
3
4

VCC_TEST&ODCTRL

R60

0/NC

RXE3+
RXE3­RXEC+
RXEC-

PA[0..9]7

PA[0..9]

PA1
PA2
PA3
PA4
PA5
PA6
PA7

LVA3PPA0
LVA3M
LVACKP
LVACKM
LVA2P
LVA2M
LVA1P
LVA1M
LVA0PPA8
LVA0MPA9

RXE2+
RXE2-

RXE1+
RXE1-

RXE0+
RXE0­RXO3+
RXO3­RXOC+
RXOC-

PB[0..9]7

PB[0..9]

PB6

LVB3PPB0
LVB3MPB1
LVBCKPPB2
LVBCKMPB3
LVB2PPB4
LVB2MPB5
LVB1P

RXO2+
RXO2­RXO1+
RXO1­RXO0+
RXO0-

LVB1MPB7

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

CON30

RXO0-LVB0M

RXO1-LVB1M
LVB2M
LVBCKM

LVB3M

RXO2-

RXOC-

RXO3-

RXE0-LVA0M
LVA1M

LVA2M

RXE1-

RXE2­LVACKM RXEC-

LVA3M

RXE3-

VCC_TEST&ODCTRL

VLCD

JP2

12
34
56
78
910
11 12
13 14
15 16
17 18
19 20
21 22
23 24
25 26

HEADER 13X2

VLCD 6

RXO0+ LVB0P
RXO1+ LVB1P
RXO2+
RXOC+
RXO3+

LVB2P
LVBCKP

LVB3P
RXE0+ LVA0P
RXE1+ LVA1P
RXE2+ LVA2P
RXEC+ LVACKP
RXE3+ LVA3P

LVB0PPB8
LVB0MPB9

Modify 20050803: FPC LVDS

TC4

C31

VCC3.3

VCC3.3 6,7

R61

10K/NC

VCC_TEST&ODCTRL

FOR 19" FSC PANEL

VCC_TEST&ODCTRL 7

R62

0/NC

AGND

VCC_TEST&ODCTRL is used for OVER DRIVE function control.

100uF/16V/NC

0.1uF

ViewSonic Corporation

Model

Title

PANEL INTERFACE

Date Rev:

75

ViewSonic Corporation Confidential - Do Not Copy VG1930wm-3

+5V

VCC1.8

VCC1.8 7

CN10

10

9
8
7
6
5
4
3
2
1

HEADER5X2

F2

24V/5A/DIP/NC

DIP

BL_ON

BL_ADJ

F1

24V/5A/NC

+

TC20

220uF/16V

+

TC21

220uF/16V/NC

L10 L1206

1 2

MLB-201209-0220P-N2

C85

0.1uF

1 2

MLB-201209-0220P-N2/NC

C86

0.1uF/NC

L11 L1206

+12V

+5V

+12V 3

BL_ON

BL_ADJ

R74 4K7

C41

1uF

C38

0.1uF/NC

R67

10K

3

Q5

MMBT3904L

2

+5V

3

2

R68 0/NC

R70 4K7

1

R72

1K

Q7

1

MMBT3904L

R75 0/NC

R77 4K7 -> 100K

+5V

+5V

R69

10K

R73

10K

on_BACKLIGHT 7

Adj_BACKLIGHT 7

VCTRL 7

R71

50

+

TC9

4.7uF/50V

D25 1N4148

C

D26

1N4148

R78

100

Q6

B

CHT2907

E

R76

2K

VCC3.3

Recommond to used "Blue" parts circuit
for VCC1.8V if you want to suppoert DDC
function when system power off

VCC3.3 5,7

DVI5V

VGA5V

VLCDVCC_PANEL

R79

10K

on_Panel7

R82 4K7

1

C42

0.1uF

R80

10K

3

Q9

MMBT3904L

2

Q8

AO3401

+

10uF/16V

TC10

VLCD 5

VCC_PANEL

R81

0

R83

10K

DVI5V4 VGA5V 4

+5V

1

D28

SSM12L

VCC5V

2

D27

BAT54C-GS08

3

C43

0.1uF/NC

+5V3,4,7

T0-263

U5 1084-33CM/NC

3 2

VI VO

VO

ADJ

1

For 15" 3.3V Panel

4

TC11

+

100uF/16V/NC

VCC_3.3

C44

0.1uF/NC

03/21 MODIFY

L12 L1206

1 2

TC22

+

100uF/16V

MLB-201209-0220P-N2/NC

VCC3.3

VCC3.3 5,7

C80

0.1uF

VCC_3.3

+5V

+12V

S3

L1206

1 2

S5

L1206

1 2

S12

L1206

1 2

VCC_PANEL

C81

0.1uF

T0-252

U10

1

ADJ

1117-33

23

VOUTVIN

4

TAB

76

ViewSonic Corporation Confidential - Do Not Copy VG1930wm-3

ViewSonic Corporation

Model

Title

POWER (DC TO DC)

Date Rev:

SDA_A4
SCL_A4

SDA_D4
SCL_D4

BUZ_ON

2N3906/NC

BZ1

BUZZER

Q12

-

R107

10K

C_VCC

23

R86 100
R87 100

R90 100
R91 100

+5V

TC19

10uF/16V

R118

1K/NC

1

VCC5V

CN11

1
2
3
4

JWT-A2001WV2-04/NC

VCC5V

R88

R89

10K

10K

C60

0.1uF

C63

0.22uF

R115 1K/NC

R121 3K3/NC

R30 0/NC

R84

10K

VCC3.3

BUZ_CPU

R85

10K

RIN4

GNDR4

GIN4

GNDG4

SOG4

BIN4

GNDB4
HSYNC4
VSYNC4

B+4
B-4
G+4
G-4
R+4
R-4

CLK+4

CLK-4

R92

AVDD

U8

8
7
3
4 5

VDD
HOLD#
WP#
VSS SDI

PM25LV010

C64 22pF

C65 22pF

SDO

CE#
SCK

VCC3.3

VCC5V

390 1%

C58

1uF

2
1
6

X1

14.318MHZ

R113

10K

C67

0.1uF

U7

23

RIN0P

22

RIN0N

20

GIN0P

19

GIN0N

21

SOGIN0

18

BIN0P

17

BIN0N

27

HSYNC0

28

VSYNC0

30

DDCA_SDA/RS232_TX

31

DDCA_SCL/rs232_RX

3

RX2P

4

RX2N

6

RX1P

7

RX1N

9

RX0P

10

RX0N

12

RXCKP

13

RXCKN

100

DDCD_SDA

1

DDCD_SCL

15

REXT

26

REFP

25

REFM

37

SDO

38

SCZ

39

SCK

40

SDI

84

RST

96

XIN

97

XOUT

80

BYPASS

52

MODE[0]

53

MODE[1]

R114

10K

R122 0/NC

R123 0/NC

VMPLL

VPLL

98

AVDD_DVI

AVDD_MPLL

AVDD

24

16

AVDD_PLL

AVDD_ADC

32

VDDP

VDDP

49

VDDP

VDVI

8

AVDD_DVI

14

TSUM56AL/TSUM16AL

GND

GND

GND

GND

GND

5057767983

VCC3.3 VCC3.3

R124

10K

C_VCC

GND

2

5

GND

GND

112933

56

VDDP

GND

75

VDDP

GND

R125

10K

VDDC

C45

51

668234

VDDC

GPIO_P15/PWM0
PWM2/GPIO_P24
GPIO_P27/PWM1

PWM1/GPIO_P25

PWM0/GPIO_P26

GPIO_P16/PWM2

GPIO_P10/I2C_MCL

GPIO_P11/I2C_MDA

0.1uF

VCTRL

VDDC

VDDC

VDDC

LVA3P

LVA3M

LVACKP

LVACKM

LVA2P

LVA2M

LVA1P

LVA1M

LVA0P

LVA0M

LVB3P

LVB3M

LVBCKP

LVBCKM

LVB2P

LVB2M

LVB1P

LVB1M

LVB0P

LVB0M

GPIO_P23
GPIO_P22

GPIO_P12

RSTN
GPIO_P00/SAR1
GPIO_P01/SAR2
GPIO_P02/SAR3

GPIO_P06
GPIO_P07

GPIO_P13
GPIO_P14

VCC3.3

R110

10K

POWER

C68

0.1uF

NC
NC
NC

81

54
55
58
59
60
61
62
63
64
65

67
68
69
70
71
72
73
74
77
78

36
45
46

41

ENHANCE

42

35
47
48
85
86

87
88
89
90

91
92
93
94
95
99

44
43

LED_A
LED_G
DOWN
UP
MENU
AUTO

C_VCC
BUZ_ON

ENHANCE

PA0
PA1

PA2

PA3

PA4
PA5
PA6
PA7
PA8
PA9

PB0

PB1
PB2
PB3
PB4
PB5
PB6
PB7
PB8
PB9

VCC_TEST&ODCTRL5

R142

R95 100

R101 100
R102 100
R104 100/NC

R105 1K
R106 1K

MUTE

R108

10K

CN12

12

11

10

9
8
7
6
5
4
3

MUTE

2
1

Swap the pin

100

VCC3.3

R109

10K

VCTRL 6

PA[0..9]

PB[0..9]

HPD_CTRL4

R132 100

R133

R111 100
R112 100

C70

0.1uF

+5V

R93
10K

R94 20K

C59

POWER

KEY1
KEY2

BUZ_CPU

0R

D30

3.6V

VCC3.35,6

VCC3.35,6PA[0..9] 5

PB[0..9] 5

VCC3.35,6

+5V 3,4,6

0.1uF

DET_VGA 4

on_PANEL 6
on_BACKLIGHT 6
adj_BACKLIGHT 6

HDCP_SDA

HDCP_SCL

VCC3.3

Revised by worry

Volume 3
AUDIO_MUTE 3

DET_DVI 4

Revised by worry

C66

0.1uF

R116

3.9K

R119

1.5K

C16

0.1uF

U9 24C16

8

VCC

7

WP

6

SCL

UP

AUTO MENU

C69

0.1uF

A0
A1
A2

GNDSDA

KEY1

1
2
3
45

D29

3.6V

VCC3.3

R98

10K

1

VCC3.3

R117

3.9K

R120

1.5K

C17

0.1uF

VCC3.3

VCC3.3

VCC3.3

3

Q11

MMBT3904L

2

DOWNKEY2

FB4

600 OHM

FB5

600 OHM

R99

330

R103 47

FB6

600 OHM

10uF/16V

FB8

600 OHM

10uF/16V

VDDP

+

TC14

10uF/16V

TC15

TC17

AVDD

VMPLL

C49

0.1uF

+

C53

0.1uF

+

C56

0.1uF

LED_G

C62

0.1uF

C87

U12

1

A0

2

A1

3

A2

4 5

GND SDA

NC/24C04

HDCP Key (288Bytes)

VCC1.86

C50

C51

0.1uF

0.1uF

VCC3.35,6

VCC3.35,6

NC/0.1uF

VCC

WP

SCL

R140 NC/0

VCC1.8

600 OHM

C52

0.1uF

VCC3.3

VCC3.3

VCC3.3

R96

10K

8
7
6

1

VCC3.3

R97

330

R100 47

3

Q10
MMBT3904L

2

R134 NC/10K

R135 NC/10K

R136 NC/100
R137 NC/100

R138 NC/10K
R139 NC/0

VDDC

FB3

TC13

4.7uF/50V

FB7

600 OHM

FB9

600 OHM

Revised by worry

+

TC16

10uF/16V

TC18

10uF/16V

LED_A

HDCP_SCL

HDCP_SDA

C46

0.1uF

VDVI

VPLL

C61

0.1uF

+

+

JP?/NC1

1
2
3

C47

0.1uF

C54

0.1uF

C57

0.1uF

C48

0.1uF

C55

0.1uF

ViewSonic Corporation

Model

Title

SCALER

Date Rev:

77

ViewSonic Corporation Confidential - Do Not Copy VG1930wm-3

9. PCB Layout Diagrams

78

ViewSonic Corporation Confidential - Do Not Copy VG1930wm-3

79

ViewSonic Corporation Confidential - Do Not Copy VG1930wm-3

80

ViewSonic Corporation Confidential - Do Not Copy VG1930wm-3

81

ViewSonic Corporation Confidential - Do Not Copy VG1930wm-3

82

ViewSonic Corporation Confidential - Do Not Copy VG1930wm-3

83

ViewSonic Corporation Confidential - Do Not Copy VG1930wm-3

10. Exploded Diagram and Exploded Parts List

y

N

N

N

N

pp

N

N

N

N

84

ViewSonic Corporation Confidential - Do Not Copy VG1930wm-3

EXPLODED PARTS LIST (VG1930WM-3)

ViewSonic Model Number: VS11419
Rev: 1a

Serial No. Prefix: QC6

Item ViewSonic P/N Ref. P/N Description Q't

1 C-00008270
2
3 CB-00008111
4 HW-00008085
5
6 B-00008270
7
8 C-00008271

9 PL-00008091
10 CB-00008115
11
12 B-00008269
13 HW-00008084
14 HW-00008086
15 B-00008272
16
17 B-00008271
18
19
20 C-00008272
21 PL-00008090
22

/A

/A

/A

/A

/A

/A
/A

/A

151-MF1-KCIEUT9E-1H BEZEL 1
705-590-G14CH PANEL 1
631-030-VG1930H LVD LINE 1
107-005-3082H SCREW 5
123-002-CA787DGH METAL COVER 1
899-VLG-19A2D-AH AD BOARD 1
123-B0D-19A2DH Metal Case 1
151-MR1-KCIE9E-12H REAR COVER 1
107-010-3073H SCREW 7
631-013-VG1930-AH CONTROL WIRE 1
121-001-19A2DH Su
860-AB0-190DTLB-PVH POWER BOARD 1
107-005-3032H SCREW 5
108-305-4133H SCREW 5
899-40P-19A2DH POWER CONTROL BOARD 1
631-006-VG1930H CONNECT WIRE 1
899-400-19A2DH KEY BOARD 1
107-010-3071H SCREW 2
108-S10-4033H SCREW 4
154-001-19A2D9E-1H HINGE COVER 1
151-MS0-HASTANDH STAND ASSY 1
131-030-2110H STAND OFF 1

ort Bracket 1

y

N

r

g

N

N

N

N

PACKING PART LIST ( VG1930WM-3 )

ViewSonic Model Number: VS11419
Rev: 1a

Item ViewSonic P/N Ref. P/N Location Q't

1
2 P-00008272 170-002-19V38H PE Foam Ba
3 P-00008273 160-00L-19A2DH cushion（LEFT） 1

4 P-00008274 160-00R-19A2DH cushion（Right） 1
5
6
7
8 CB-00008112 610-181-15GMFH D-SUB Cable 1
9 CB-00008114 631-U03-17V28H Audio Cable 1

10

/A VG1930wm-3 LCD Monitio

/A 005-001-19A2D-BH Carton 1
/A 600-181-3400ICH(by bom) Power cord(by bom) 1
/A 610-181-19GCH DVI Cable 1

/A 002-M01-19A2D-AH Menu 1

1
1

85

V iewSonic Corporation Confidential - Do Not Copy VG1930wm-3

11. Recommended Spare Parts List

(

H

pply

S

H

d

H

y

d

H

d

H

H

S

H

g

S

H

g

S

H

y

S

H

S

H

p

I

H

y

S

H

S

4

H

S

H

S

H

p

m

H

g

S

H

t

H

ght

H

H

H

H

p

H

,

,

]

]

ViewSonic Model Number: VS11419

RECOMMENDED SPARE PARTS LIST (VG1930WM-3)

Rev: 1a
Serial No. Prefix: QC6

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

1

Accessories:

2

PC Board Assembly:

3

[All PCBA]

4
5 Power Supply Boar
6

Cabinets:

7

[Front Panel, All

8

Covers

9
10
11 Accessor
12
13
14
15
16
19
20
21
22
23
24
25
26
27
28
29
30

Base

Cables: [All Cables]

Documentation:

Hardware: [Screw,

Bracket, Hinge,
Washer

Miscellaneous:
Packing Material:

[Box, Foam, Bags]

Plastics: [Pedestal,

Plate, Rubber Foot,

etc.

Button

Remark 1:
Remark 2:

Power Cord
Power Su
Audio Control Boar
Ke

Front Panels
Back Cover RoH
Hin
Si
Accessory Cable,D-Sub,BLACK JV-4777 30AWG RoHS

Audio Cable - 28AWG 180cm,Blank,JVE RoH
Wire 13
User Manual + CD Wizard RoHS
Safet
Screw B3*5 RoH
Screw B M3xL5 TP6 RoH
Screw M4 5*4 1010 steel ROH
Ta
Generic Foam
Generic Box
PE Ba
Foam - Lef
Foam - Ri
Craft Box
Pedestal RoHS
B 3*10 TP4 E-Plate Ni RoHS
Panel

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.

Description

U.K) RoHS

Board+Inverter Board Assy RoH

Boar

e Cover RoH

nal Cable (connect A.D Board) RoH

Cable,D-Sub,BLACK JCE RoH

1.5-2.0 12p+2p*2 A0031460 CME ADD EM

label RoH

e OPP 900*50*0.045m

570*600*0.13 RoH

rotector film

A-00008092 600-181-5000IC
B-00008269
B-00008270
B-00008271
B-00008272 899-40P-19A2D
C-00008270 151-MF1-KCIEUT9E-1
C-00008271 151-MR1-KCIE9E-12

C-00008272 154-001-19A2D9E-1
CB-00008111
CB-00008112
CB-00008113
CB-00008114
CB-00008115
DC-00008223
DC-00008224 153-001-19A2D

HW-0000808
HW-00008085
HW-00008086

M-00008088

P-00001347

P-00002515

P-00008272

P-00008273

P-00008274

P-00008275 005-001-19A2D

PL-00008090 151-MS0-HASTAND
PL-00008091
PL-00008092

860-AB0-190DTLB-PV

899-VLG-19A2D-A

899-400-19A2D

631-030-VG1930

610-181-15GMFH

610-181-15GMC

631-U03-17V28

631-013-VG1930-AH

002-M01-19A2D

107-005-3032
107-005-3082
108-305-4133
831-950-0301

30833
20653

170-002-19V38
160-00L-19A2D
160-00R-19A2D

107-010-3073

154-002-19A25

86

ViewSonic Corporation Confidential - Do Not Copy VG1930wm-3

O

,

,

BOM LIST (VG1930WM-3)

ViewSonic Model Number: VS11419
Rev: 1a

Serial No. Prefix: QC6

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

1 DC-00008223 002-M01-19A2DH 19A2D MENU ASSY for TaiWan Jingpuze RoHS 1
2 N/A 003-401-19A2DH 19A2D Carton Label 合成紙 76.2*76.2 Sunway RoHS 1
3 N/A 003-H01-19A2DH 19A2D Small Barcode Label 合成紙 RoHS Sunway 1
4 N/A 003-P01-17V27H 17V27 pallet Label white paper75*40 RoHS SUNWAY 0.032
5 P-00008275 005-001-19A2DH 19A2D Carton 瓦楞紙 RoHS 1
6 N/A 005-H01-KA17H CORNER PROTECTOR PALLET 50mm*50mm*900mm RoHS 0.125
7 N/A 006-X01-KC17H Corner Protector 50mm*50mm*1850mm RoHS 0.125
8 DC-00008224 153-001-19A2DH 19A2D Safety label RoHS 1

9 PL-00008092 154-002-19A25H 19A25 Panel protector film XG-536 T=0.1 With_Print JsutEuter 1
10 N/A 170-000-PALLETH PE Sheet LDPE Transparent 1850*1600mm RoHS 0.032
11 P-00008272 170-002-19V38H 19V38 Pe Bag white LDPE 570*600*0.13 RoHS 1
12 P-00008273 160-00L-19A2DH 19A2D Folyform-L EPS MingChan RoHS 1
13 P-00008274 160-00R-19A2DH 19A2D Folyform-R EPS MingChan RoHS 1
14 N/A 831-410-0600H ALL LCD PP Belt 10*0.8 Yellow 10KG RoHS 0.002
15 M-00008088 831-950-0301H 19V3F Tape OPP 900*50*0.045mm Symbio RoHS 0.0725
16 N/A 836-045-0500SH VOLUBLE FILM 450mm*400m RoHS 0.008
17 N/A 841-001-19A2DH 19A2D PATTET Wooden RoHS 0.032
18 N/A 705-590-G14CH 19"CMO-W PANEL(M190A1-L02) time:5ms RoHS 1
19 N/A 932-000-HDCPH A HDCP Receiver key 1
20 HW-00008084 107-005-3032H SCREW B3*5 ISO E-PLATE WHITE Zn RoHS 5
21 HW-00008085 107-005-3082H SCREW B M3xL5 TP6 E-PLATE COLOR Zn RoHS 5
22 PL-00008091 107-010-3073H B 3*10 TP4 E-PLATE Ni RoHS 7
23 HW-00008086 108-305-4133H SCREW M4 5*4 1010 steel ROHS 1
24 N/A 123-002-CA787DGH CA787DG METAL COVER SECC=0.6t RoHS 1
25 N/A 123-B0D-19A2DH 19A2D METAL-CASE SECC T=1.0 DongFa/Wei yao RoHS 1
26 N/A 154-M00-8090H Mylar 80*90*0.3mm PET TRANSLUCENCY RoHS 1
27 N/A 154-M00-DA985DGH DA985DG MAYLER 173*115*0.3mm PET 1
28 CB-00008112 610-181-15GMFH Accessory Cable,D-Sub,BLACK JV-4777 30AWG RoHS 1
29 CB-00008113 610-181-15GMCH Accessory Cable,D-Sub,BLACK JCE RoHS 1
30 CB-00008115 631-013-VG1930-AH Wire 13p 1.5-2.0 12p+2p*2 A0031460 CME ADD EMI RoHS 1
31 B-00008269 860-AB0-190DTLB-PVH 19"POWER+INVERTER MOUSE 3PIN C201 100uf/400V REV:A+ RoHS 1
32 B-00008270 899-VLG-19A2D-AH PCBA,19A2D,A/D Board With Audio,REV:A RoHS 1
33 N/A 003-001-ADBIOSH ALL CMO LCD BIOS Label poly 40*8mm RoHS 1
34 N/A 330-100-16253-WH dispersing 10uF 16V 105C M TP 4*5 HUAWEI RoHS
35 N/A 330-100-16253-JH dispersing 10uf 16V 105C 4*5 jian long RoHS 7
36 N/A 330-101-16253-WH EC 100uF 16V 105D M TP MI 009 6*5 FOR RoHS dispersing sh
37 N/A 330-221-16203-W1H EC.220uF/16V 105°C Φ6*11 dispersing shorting,huawei 180
38 N/A 330-2R2-50253-WH 2.2uF 50V 105D 4*5 RoHS 180D dispersing shorting,huawei Roh
39 N/A 330-4R7-50253-WH EC 4.7uF 50V 105DEGREE MTP 4*5dispersing shorting,huawei RoH
40 N/A 409-005-0105BAH PHOE JACK GREEN+BLACK SCPRE RoHS
41 N/A 483-302-2388H FEMALE180D 2.5P 254FH15 1S H8.50mm TY RoHS
42 N/A 485-415-9001TH D-SUB 15P 8.89 PC99 90D FEMALE1285-15S-004-98F RoHS TEKC
43 N/A 485-D25-R001TH DVI-D/25P/90D(1241-440-054-32)TEKCON RoHS
44 N/A 485-D25-R001ZH DVI-D 25P 90D FEMALE NTK RoHS 1
45 N/A 504-A00-PT2300H AUDIO AMP IC FOR PTC PT2300 RoHS
46 N/A 531-143-49US-2H KTS QYSTAL 14.318MHZ. 20PF FOR RoHS
47 N/A 630-002-1009H BASE 2pin JWT A2001 PITCH=2mm Straight FOR RoHS
48 N/A 630-012-1009H BASE 12P PITCH 2.0 FOR RoHS
49 N/A 630-026-S2006H BASE 2.0 26P /JWTA2006 STRAIGHFOR ROHS 2 ARRAY
50 N/A 631-003-VG1930-AH Boand-in Wier 2.0 3p CME A0031459 RoHS 1
51 N/A 852-VLG-19A2D-AH SMD,19A2D,A/D Board With Audido,REV:A RoHS 1
52 N/A 200-100-VG1930-AH VSC VG1930 A/D B PCB,MST,TSUM56AWHL Rev:A RoHS 1
53 N/A 281-031-39004H SMD 390ohm +-1% 1/10W 0603 RoHS
54 N/A 281-031-47004H SMD 470ohm +-1% 1/10W 0603 RoHS
55 N/A 281-031-49R94H RES 49.9ohm 1% 1/10W 0603 SMD.RoHS
56 N/A 281-031-56R04H RES 56.OΩ +-1% 0603 SMD RoHS
57 N/A 281-031-75R04H RES 75 1% 1/10W 0603 SMD RoHS
58 N/A 281-035-0R04H SMD 0ohm +-5% 1/10W 0603 RoHS
59 N/A 281-035-0R04H SMD 0ohm +-5% 1/10W 0603 RoHS
60 N/A 281-035-0R04H SMD 0ohm +-5% 1/10W 0603 RoHS
61 N/A 281-035-1004H SMD,10ohm,+-5%,1/10W,0603 Green I
62 N/A 281-035-1014H SMD 100ohm +-5% 1/10W 0603 RoHS

63 N/A 281-035-1014H SMD 100ohm +-5% 1/10W 0603 RoHS

64 N/A 281-035-1024H SMD 1K +-5% 1/10W 0603 Green I

65 N/A 281-035-1034H SMD 10K +-5% 1/10W 0603 Green I

66 N/A 281-035-1044H Chip Resistor SMD +-5% 0603 1/10W 100K ohm Green I
67 N/A 281-035-1044H Chip Resistor SMD +-5% 0603 1/10W 100K ohm Green I
68 N/A 281-035-1214H RES 120 5% 1/10W 0603 SMD
69 N/A 281-035-1524H RES 1.5K 5% 1/10W 0603 SMD. RoHS
70 N/A 281-035-2024H SMD,2K,+-5%,1/10W,0603,RoHS
71 N/A 281-035-2034H SMD 20K +-5% 1/10W 0603 Green I RoHS
72 N/A 281-035-2224H SMD 2.2K +-5% 1/10W 0603 RoHS
73 N/A 281-035-2234H SMD R 22K 0603 RoHS
74 N/A 281-035-3034H SMD 30Kohm +-5% 1/10W 0603 Green I
75 N/A 281-035-3044H RES 300K 5% 1/10W 0603 SMD. RoHS
76 N/A 281-035-3314H RES 330 5% 1/10W 0603 SMD. FOR RoHS
77 N/A 281-035-3924H SMD 3.9K +-5% 1/10W 0603 RoHS
78 N/A 281-035-4704H RES 47ohm 5% 1/10W 0603 SMD. FOR RoHS
79 N/A 281-035-4724H SMD 4.7K +-5% 1/10W 0603 GreenII
80 N/A 285-056-B160CH SMD VARISTOR 0603 5.5V 10pF RoHS HongDe
81 N/A 330-221-16203-W1H EC.220uF/16V 105°C Φ6*11 dispersing shorting,huawei 180
82 N/A 381-101-032554H SMD CC NPO 100pF/25V 0603 +-5%RoHS
83 N/A 381-102-035054H NPO 1000P/50V +-5% 0603 SMD RoHS
84 N/A 381-220-032554H SMD CC 22pF 25V NPO 0603. for RoHS

TC14,TC15,TC10,TC16,TC17,TC18,

TC22
TC20
TC33
TC13,TC9
CN2
CN10
CN6
CN8

U2
X1
CN1,CN5
CN12
JP2

R92
R22
R71
R19,R20,R21
R23,R24,R25
RA1
R39,R41,R44,R46,R48,R50
R81,RA2,R29
R53,R58
R142
R27,R28,R78,R86,R26,R87,R112,R9
0,R91,R95,R101,R102,R111
R105,R106,R32,R33,R72
R108,R109,R110,R113,R114,R130,R
36,R59,R67,R69,R107,R73,R17,R79,
R8

R80,R83,R84,R85,R88,R89,R93
R3
R141
FB2
R119,R120
R76,R12
R2,R4,R94
R34,R35
R15
R1,R5
R126
R13,R97,R99
R116,R117
R100,R103
R6,R10,R77,R70,R74,R82,R14
D11,D12,D40,D41,D43,D44
TC23
C20,C21,C82,C84
C9
C65,C64

7

1
1
1
2
1
1
1
1

1
1
2
1
1

1
1
1
3
3
1
6
3
2
1

13

5

25

1
1
1
2
2
3
2
1
2
1
3
2
2
7
6
1
4
1
2

87

V iewSonic Corporation Confidential - Do Not Copy VG1930wm-3

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

,

,

85 N/A 381-330-032554H NPO 33PF/25V +-5% 0603 SMD RoHS
86 N/A 381-681-032554H SMD CC 680pF 25V NP0 0603 RoHS
87 N/A 382-222-032564H SMD CC 2200pF/25V X7R 0603. RoHS

88 N/A 385-104-032584H SMD CC Y5V 0.1uF/25V -20%~+80%0603 RoHS

89 N/A 385-105-031684H Y5V 1uF/16V +80-20% 0603. for RoHS
90 N/A 385-473-032584H Y5V 0.047u/25V +80%-20% 0603for RoHS
91 N/A 506-524-LC16-MH EEPROM,24LC16BT-I/SNG S08 RoHSMicrochip
92 N/A 506-525-L1005H MX25L1005 FLASH IC 1M 33Mhz RoHS
93 N/A 506-5PM-25LV010EH PMC SPI FLASH 25LV010E RoHS 1
94 N/A 506-CTS-M56AWHL-1H MSTAR TSUM56AWHL-LF-1 For RoHS
95 N/A 506-RAS-1117-33H LDO AS1117L 3.3V SOT-223 A1 RoHS
96 N/A 518-02N-3904H TR NPN PMBS3904 40V 100mA SOT-23 RoHS PHILIPS
97 N/A 518-02N-3904-FH TR NPN MMBT3904LT1 40V 100mA SOT HM RoHS 7
98 N/A 518-02N-3904H TR NPN PMBS3904 40V 100mA SOT-23 RoHS PHILIPS

99 N/A 518-02N-3904-FH TR NPN MMBT3904LT1 40V 100mA SOT HM RoHS 1
100 N/A 518-02N-3906H TR PNP PMBS3906 40V 100mA SOT-23 RoHS PHILIPS
101 N/A 518-02N-3906-FH TR PNP MMBT3906LT1 40V 100mA SOT23 HM RoHS 1
102 N/A 518-FAO-3401H Transistor P-MOS,SOT-23,AO3401,-30V/-4.2A AO RoHS
103 N/A 518-TCH-2907AH Transistor CHT2907A SOT-23 Chenmko RoHS

104 N/A 528-200-BAV99-CH Switching Diode,BAV99,SOT-23 PHILIPS RoHS

105 N/A 528-2BA-T54CH SMD DIODE BAT54C SOT23.FOR RoHS
106 N/A 528-DSS-M12LH schottky barrier 20~40V 1A D0-214AC SSM14LPT Chenmko RoHS
107 N/A 528-R1N-4148H DIODE 1N4148 SOT-34 SMD. for RoHS
108 N/A 529-350-03R6H ZENER BZT52C3V6 3.6V SOD123 Chang dian RoHS
109 N/A 529-350-05R6H SMD ZENER 5.6V BZT52C5V6 Changdian RoHS
110 N/A 780-103-300C04H BEAD 30ohm 400mA 0603 CHILISINRoHS
111 N/A 780-103-301C02H BEAD SMD 300ohm,200mA,+-25% CHILISIN RoHS
112 N/A 780-103-601C07H BEAD SMD 600ohm/1A,0603 +-25% CHILISIN RoHS
113 N/A 780-104-600C30H SMD BEAD 0805 60Ω/100MHz 3A CHILISIN FOR RoHS
114 N/A 780-104-600E30H SMD BEAD 0805 60Ω/100MHz 3A FOR ROHS 2
115 N/A 780-104-601C30H SMD BEAD 600ohm 3A 0805 100MHZ RoHS CHILISIN
116 N/A 780-107-121C50H BEAD SMD 120ohm/5A 1206 CHILISIN RoHS
117 N/A 780-107-121J50H BEAD 120ohm 1206 5A 1206 Jantek FOR RoHS 2
118 B-00008271 899-400-19A2DH PCBA,Control Key Board 19A2D(VG1930WM),RoHS 1
119 N/A 200-K00-VG1930H VSC VG1930wm CONTROL KEY PCB RoHS 1
120 N/A 403-720-PTCFH SMD TACT SW SIDE KEY PTCF ALTA RoHS
121 N/A 403-720-04TSCFAH SMD TACT SW SIDE KEYTSCF-31C HUA-JIE RoHS 180gf
122 N/A 638-006-2611H SMD Wafer P1.5 6P 90D 5W1.2611B ARC RoHS
123 B-00008272 899-40P-19A2DH PCBA,Power Key Board 19A2D(VG1930WM),RoHS 1
124 N/A 200-K01-VG1930AH VSC VG1930wm Power Control KeyPCB REV:A RoHS 1
125 N/A 403-720-02TSUYH SMD TACT SW 180D TSUY-2SL HUA-JIE RoHS
126 N/A 528-LPB-3227H SMD KED KPB-3227SYKQBCC (V1) BLU/Org KINGBRIGHT
127 N/A 638-002-2611H SMD Wafer P1.5 2P 90D 5W1.2611B ARC RoHS
128 N/A 638-006-2611H SMD Wafer P1.5 6P 90D 5W1.2611B ARC RoHS
129 N/A 638-013-2611H SMD Wafer P1.5 13Pin 90D 5W1.2611B ARC RoHS
130 C-00008270 151-MF1-KCIEUT9E-1H 19A2D BEZEL ASS'Y UT+9E ABS-PA757 VSC+ENERGY STAR Fuking 1
131 C-00008271 151-MR1-KCIE9E-12H 19A2D Rear ASS'Y EM-009E ABS-PA757 Black Fuking RoHS 1
132 PL-00008090 151-MS0-HASTANDH 19A2D HASTAND RoHS 1
133 C-00008272 154-001-19A2D9E-1H 19A2D Hing Cover EM-009E ABS HG Guan Yi RoHS 1
134 N/A 107-010-3071H SCREW B-Head 3.0*10 BLK RoHS 2
135 N/A 108-S10-4033H SCREW M4*10 P=0.7 Ni-Plate Fe RoHS SHYE CHing 4
136 N/A 121-001-19A2DH 19A2D SUPPORT PLATE SECC T=1.0 DongFa RoHS 1
137 N/A 126-030-ALM7H C9 insulating film AL FOIL 70*30mm EMI FOR RoHS 1
138 N/A 126-030-ALP1H AL FOIL 80*30mm RoHS 1
139 N/A 126-030-ALP6H AL FOIL 50*30mm RoHS 1
140 N/A 131-030-2110H signal cable Hex head screw 3.0 mm L=12mm RoHS 4
141 A-00008092 600-181-5000ICH P/C SP-60/IS-14,Black,U.K.,1.8M,I-sheng RoHS 1
142 N/A 600-181-5000NCH P/C LP-60L,H05VV-F,LS-60,Black1.8M,Linetek,RoHS 1
143 N/A 631-006-VG1930H Wier 6P1.5 A0031461 CME RoHS 1
144 CB-00008111 631-030-VG1930H LVDS 30P A0031458 CME RoHS 1
145 CB-00008114 631-U03-17V28H 17V28 AUDIO CABLE A170E1-H01 28AWG 180cm,Blank,JVE RoHS 1
146 N/A 631-U03-17V28CH Audio cable 28AWG 180cm Black RoHS JCE 1
147 N/A 831-B10-01013-ALZH AL CONDUCTIVE FOAM W10*H13*L10mm ZONGCHEN ROHS 1
148 N/A 831-B10-3502-ALZH AL CONDUCTIVE FOAM L40*W14*H2 mm ZONGCHEN ROHS 1
149 N/A 831-B14-3502-ALZH AL CONDUCTIVE FOAM L25*W14*H2 mm ALGK RoHS

C18,C19
C88,C89
C63
C1,C13,C14,C15,C16,C17,C22,C23,
C24,C25,C26,C27,C28,C29,C30,C31,
C42,C45,C46,C47,C48,C3,C49,C85,
C50,C51,C52,C53,C54,C55,C56,C57,
C59

C60,C61,C62,C66,C67,C68,C69
C2,C4,C41,C58
C6,C7,C8,C10,C11,C12
U9
U8

U7
U10
Q1,Q4,Q5,Q7,Q9,Q10,Q11

Q13

Q12

Q8
Q6
D1,D2,D3,D14,D15,D16,D17,D18,D
19,D20,D21
D27
D28
D8,D10,D26,D25
D22,D29,D30
D9,D7,D13,D42
L17,L18,L19
L13,L14,L15,L16
FB12
L1,L2

FB3,FB4,FB5,FB6,FB7,FB8,FB9,FB
S5,L10

SW2,SW3,SW4,SW5,SW6
SW2,SW3,SW4,SW5,SW6
CN5

SW1
D1
CN2,CN3
CN4
CN1

2
2
1

45

4
6
1
1

1
1
7

1

1

1
1

11

1
1
4
3
4
3
4
1
2

8
2

5
5
1

1
1
2
1
1

1

88

V iewSonic Corporation Confidential - Do Not Copy VG1930wm-3

* Reader’s Response*

Dear Readers:

Thank you in advance for your feedback on our Service Manual, which allows continuous improvement
of our products. We would appreciate your completion of the Assessment Matrix below, for return to
ViewSonic Corporation.

Assessment

A. What do you think about the content of this Service Manual?

Unit Excellent Good Fair Bad

1. Precautions and Safety Notices

2. Specification

3. Front Panel Function Control Description

4. Circuit Description

5. Adjustment Procedure

6. Troubleshooting Flow Chart

7. Recommended Spare Parts List

8. Exploded Diagram and Exploded Parts List

9. Block Diagrams

10. Schematic Diagrams

11.PCB Layout Diagrams

B. Are you satisfied with this Service Manual?

Item Excellent Good Fair Bad

1. Service Manual Content

2. Service Manual Layout

3. The form and listing

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

Reader’s basic dada:

Name:

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Add:

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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])

89

V iewSonic Corporation Confidential - Do Not Copy VG1930wm-3