ViewSonic VG1930wm 3 LCD display 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 - (800) 888-8583

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

2. Specification

3. Front Panel Function Control Description

6. Trouble Shooting Flow Chart

9. PCB Layout Diagrams

10. Exploded Diagram And Spare Parts List

11. Recommended Spare Parts List

78

84

86

28

64

72

73

1

5

15

21

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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 Surface of the panel is pressed by fingers & this may cover of the monitor.

Do not touch the surface of the polarizer . 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 :

Place the monitor on a clean & soft foam pad .

Incorrect Methods :

Place the monitor on foreign objects .

That could scratch the surface of panel

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2. Specification

Introductions

FEATURES VG1930wm-3

TFTLCD PANEL

Input Signal

Sync Compatibility

Compatibility

Power Voltage

Power Consumption

Audio

Ergonomics

OSD Control

Dimension

Weight

Operating Condition

Storage Condition

Regulation

Luminance (Typ)

Contrast Ratio (Typ)

Colors

Response Time (Typ)

Viewing Angle (H/V)

Recommend resolution

300 cd/㎡

700:1

16.2 M colors

5 ms

150/130(degrees;type)@CR>10

1440 X 900 @60Hz

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

Digital Yes

Separate Sync

Composite Sync

Yes

Yes

Sync on Green Yes

PC Yes

Power Mac

TV Box (NextVision 6)

AC 100-240V, 50/60Hz

On Mode(Max / Typ)

Active Off Mode (Max)

W

Tilt

Swivel ( -xx ° - xx °)

Yes

No

Yes

36 W

＜ 2 W

1.5w X 2

-5 ° ~ 20 °

Pivot ( XX ° - XX °)

Height Adjust ( XX-XX mm)

[ ] [ 1 ] [ 2 ] [▲] [▼] [; X]

360

No

0-80mm

Yes

Physical (W x H x D)

Package (W x H x D)

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)

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

Package (lbs / Kg)

Temperature (℉/℃)

Humidity (%)

Temperature (℉/℃)

Humidity (%)

7.3 Kg (16.10 lbs)

32°F to 104°F (0°C to 40°C)

10% to 90% (no condensation)

-4°F to 140°F (-20°C to 60°C)　

10% to 90% (no condensation)

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

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

Product Name

Oracle P/N

Model Number

OSD Languages

TFT LCD Panel and Model #

ViewSonic VG1930wm

VG1930WM-3

VS11419

English, French, German, Italian, Spanish,

Finnish, Japanese, Traditional Chinese,

Simplified Chinese

CMO M190A1-L02

Input Signal Analog x1 / Digital x1

Sync Compatibility

Adapter

Power Cable

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

Hot Plug Detect &DDC

Separate Sync / Composite Sync / SOG

Internal Power Board

Yes, refer to APPENDIX B: Power Cable

Yes

(Detached cable; refer the Appendix A)

DVI-D Cable(1.8m, black) with PC 2001

Audio Cable(1.8m, black) with PC 2001

MIC Cable(1.8m, black) with PC 2001

USB Cable (V2.0)

For Region code = P/A/J/K/S units only

Yes

ViewSonic CD Wizard

ViewSonic Quick Start Guide

No

No

Arabic, English, Finnish, Spanish,

German, Italian, Japanese, Swedish,

Polish, Korean, Portuguese, Russian,

Turkish , French, Czech, Hungarian,

Simplified Chinese, Traditional Chinese

PerfectSuite CD

Screen Protector Mylar

Foot Protector plastic

Service Insert

Warranty Sticker

Warranty Card

Carton Sticker

PE bag of Carton

No

Yes

No

For Region code = M units only

For Region code = G units only

For Region code = G units only

For Region code = G units only

For Region code = G units only

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2.2 GENERAL specification

Test Resolution & Frequency

Test Image Size

Contrast and Brightness Controls

2.3 VIDEO INTERFACE

Input Connector(refer the appendix A)

Default Input Connector

Video Cable Strain Relief

Video Cable Connector DB-15 Pin out

Video Signals

Video Impedance

Maximum PC Video Signal

Maximum Mac Video Signal

Sync Signals

DDC 1/2B

Sync Compatibility

Video Compatibility

Resolution Compatibility

Exclusions

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)

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“1440 X900” @ 60Hz

Full Size

Factory Default:

Contrast = 70%, Brightness = 100%

Analog : D-sub 15 ,

Digital: DVI-D

Defaults to the first detected input

Equal to twice the weight of the monitor for five minutes

Refer to Appendix A; Compliant DDC/CI

Video RGB (Analog)

Separate Sync / Composite Sync / SOG

TMDS (Digital)

75 Ohms (Analog), 100 Ohms (Digital)

950 mV with no damage to monitor

1250 mV with no damage to monitor

TTL

Compliant with version 1.1

Separate Sync / Composite Sync / SOG

Shall be compatible with all PC type computers,

Macintosh computers, and after market video cards

Refer to Segment 4-5

Not compatible with interlaced video

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

Power Supply Missing Cycle Immunity

Power Supply Acoustics

Power Saving Operation(Method)

Power Consumption

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 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

Active off Amber

36W (max)

<2W

Off Off <1W

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

Recovery Time

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2.5 ELECTRICAL REQUIREMENT

Horizontal / Vertical Frequency

Horizontal Frequency

Vertical Refresh Rate

Maximum Pixel Clock

Sync Polarity

Timing Table

30 – 82 kHz

56– 76 Hz.

135 MHz

Independent of sync polarity

Item Timing

Analog

Remark

10

11

12

13

6

7

8

9

3

4

5

1

2

640 x 350 @

640 x 400 @

640 x 400 @

640 x 480 @

640 x 480 @

640 x 480 @

640 x 480 @

640 x 480 @

720 x 400 @

720 x 480 @

720 x 576 @

800 x 600 @

800 x 600 @

14

15

800 x 600

800 x 600

@

@

16 832 x 624 @

17 1024 x 768 @

18 1024 x 768 @

19 1024 x 768 @

20

21

1152 x 864 @

1152 x 870 @

22 1152 x 900 @

23 1280 x 720 @

24 1280 x 720 @

25 1280 x 768 @

26 1280 x 768 @

27 1280 x 960 @

28 1280 x 960 @

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70 Hz, 31.5 KHz 　 　 　 　 DMT

60 Hz, 31.5 KHz 　 　 　 　

70 Hz, 31.5 KHz 　 　 　 　

50 Hz, 24.7 KHz 　

60 Hz, 31.5 KHz 　 　 　 　 DMT

67 Hz, 35 KHz 　 　 　 　 For MAC

72 Hz, 37.9 KHz 　 　 　 　 DMT

75 Hz, 37.5 KHz 　 　 　 　 DMT

70 Hz, 31.5 KHz 　 　 　 　

60 Hz, 31.5 KHz 　 DTV

50 Hz, 31.3 KHz 　 DTV

56 Hz, 35.1 KHz 　 　 　 　 DMT

60 Hz, 37.9 KHz 　 　 　 　 DMT

72 Hz, 48.1 KHz 　 　 　 　 DMT

75 Hz, 46.9 KHz 　 　 　 　 DMT

75 Hz, 49.7 KHz 　 　 　 　 MAC

60 Hz, 48.4 KHz 　 　 　 　 DMT

70 Hz, 56.5 KHz 　 　 　 　 DMT

75 Hz, 60 KHz 　 　 　 　 DMT

75 Hz, 67.5 KHz 　 　 　 　 DMT

75 Hz, 68.7 KHz 　 　 　 　 For MAC

67 Hz, 62.5 KHz 　 　 　 　 For SUN

50 Hz, 37.5 KHz 　 DTV

60 Hz, 45 KHz 　 DTV

60 Hz, 47.8 KHz 　 　 　 　 DMT;

75 Hz, 60.3 KHz 　 　 　 　 DMT;

60 Hz, 59.7 KHz 　 　 　 　 DMT

75 Hz, 75.2 KHz 　 　 　 　

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29 1280 x 1024 @

30 1280 x 1024 @

31 1440 x 900 @

60 Hz, 64 KHz 　 　 　 　 DMT

75 Hz, 80 KHz 　 　 　 　 DMT

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 Control, soft Power Switch.

Power LED (Front Head)

Front Panel Controls (Head)

[;X] [ 1 ] [▲] [▼] [ 2 ] [ ]

Reaction Time

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)

[▼]+ [▲]

[1] + [2]

[1] + [▼] + [▲] recall both of Contrast and Brightness to default toggle 720x400 and 640x400 mode when input 720x400 or

640x400 mode (70Hz only)

White Balance. (Not shown on user’s guide)

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

N/A

Color Temperature 6500K Volume 50%

OSD H. Position

OSD V. Position

OSD Time Out

OSD Background

50%

50%

15

On

Treble

Bass

720x400 / 640x400

2.7 AUDIO INTERFACE (SPEAKER SPECIFICATION)

Line input connection 3.5 mm stereo jack

Line input signal

Line input impedance

1.0 Vrms

10 kOhm

Maximum power output (Electric)

Signal to Noise Ratio

Frequency response

Distortion

Vibration

Screen image

Connector PC99 requirement Audio in

Cable type / length

Audio DPMS

N/A

N/A

720x400

1.5 W / ch

50 dB

100 Hz – 20 Khz

< 10 % THD (@1kHz)

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.

Lime Green pantone # 577C

3.5mm stereo cable / 1.8m length

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

1 st Source Panel

Model number

Type

Active Size

Pixel Arrangement

Pixel Pitch

Glass Treatment

# of Backlights

Backlight Life

Luminance (Center) –

CMO M190A1-L02

Active Matrix TFT, TN technology

19” Wide (410.4mm x 256.5mm)

RGB Vertical Stripe

0.285 mm

Anti-Glare, Hard coating (3H)

4 CCFL

40000 Hrs (Min)

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

230 cd/m2 (Min after 30 minute warm up) CT = 6500K,

Contrast/ Brightness = Max

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

Contrast Ratio 700 :1 (Typ)

500 : 1 (Min)

Color Depth

Horizontal Viewing Angle

Vertical Viewing Angle

Response Time

10%-90% @ Ta=25°C

Mercury

Panel Defects

16.2 million colors (6+2 bit panel)

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

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

On-Off

5ms (Typ) / 15ms (Max)

3.0 mg per lamp

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

Volume 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.

OSD Timeout sets the length of time the OSD screen is displayed. For example, with a “30 second” setting, if a control is not pushed within 30 seconds, the 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 for the digital 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.

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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: 1400*900@60Hz

Test Pattern:

Checkered Pattern Every One Pixel (50%Green & 50%Blue)

Inspection Item: Flicker, Mura

6. Window BG

Test Signal: 1400*900@60Hz

Test Pattern:

Window standard pattern

Inspection Item: Line Defect, Function Defect & Mura

7. 25 Gray

Test Signal: 1400*900@60Hz

Test Pattern:

Full Screen 25% White (Gray)

Inspection Item: Particle, Line Defect & Mura

8. 50 Gray

Test Signal: 1400*900@60Hz

Test Pattern:

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: 1400*900@60Hz

Test Pattern:

Window standard pattern

Inspection Item: Bright Dot, Line Defect & Power

11. RED

Test Signal: 1400*900@60Hz

Test Pattern:

Full Screen Red

Inspection Item: Bright Dot, Partial & Line Defect

12. Green

Test Signal: 1400*900@60Hz

Test Pattern:

Full Screen Green

Inspection Item: Bright Dot, Partial & Line Defect

13. Blue

Test Signal: 1400*900@60Hz

Test Pattern:

Full Screen Green

Inspection Item: Bright Dot, Partial & Line Defect

14. Gray_Scale_0-100_V64

Test Signal: 1400*900@60Hz

Test Pattern:

Vertical 64 (256) Gray Scale (Right → Left，From 0 to 100% White)

Inspection Item: Line Defect & Function Defect

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15. Function Test Display pattern

3

4

5

6

Item Pattern

1

2

Gray_Scale_0-100_V

Gray_Scale_0-100_H

Description

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

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

7

8

Black

Red

Green

Blue

Black_Tile

Full Screen Black

Full Screen 50% Red

Full Screen 50% Green

Full Screen 50% Blue

Black Tile Under White Background

Remark

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Screen

Figure6

Figure7

Figure 8

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

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

Fig1

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.

Fig 2.4

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

Fig 2.5

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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

Defect Mode

Light On Test

Failure Analysis Repair Testing

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

Abnormal

Display

Flash Dots

Bright Dot

Dark Dot

Backlight

Light Leakage

Mura

Image Sticking

Brightness spot

Particle

Dot Defect

Image Remain

Group Bright

Dots

Others Cosmetics

Defect

Check Panel

Panel Change

A

Next Step

NG

TEST

Completed

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Defect Mode Failure Analysis Repair Testing

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

A

Display Noise

Power on

Display

Abnormal

Check PCBA

AD/B Change

LIPS Change

Flicker

Beat Display

Flicker

Beat Display

Shut Down

Display Wave

Check Panel

CNT/B Change

Panel Change

No Backlight

Check PCBA

Check Panel

Check LIPS

AD/B Change

LIPS Change

CNT/B Change

Panel Change

LIPS Change

B

Next Step

NG

TEST

Completed

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Failure Analysis Repair Testing

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

B

Display White

Out

Check PCBA

AD/B Change

LIPS Change

Booting Delay

Check PCBA

Brightness

Even

Abnormal

Check PCBA

AD/B Change

LIPS Change

Beat Display

No Backlight Check Panel

Check LIPS

Panel Change

LIPS Change

No signal

Check PCBA

AD/B Change

CNT/B Change R.G.B

Display

Abnormal

Gray Scale

Display

Abnormal

Check Wire

Check Panel

VGA cable

DVI cable

Panel Change

Next Step

NG

TEST

C

Completed

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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

Check PCBA

Check Panel

Check PCBA

AD/B Change

Panel Change

AD/B Change

AD/B Change

Peculiar Smell Check PCBA

LIPS Change

Next Step

NG

TEST

Complete

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Defect Mode

Power ON/OFF

Abnormal

Failure Analysis Repair Testing

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

AD/B Change

LIPS Change

CNT/B Change

No Power

Turn Off

Abnormal

Check PCBA

Check PCBA

Check Wire

LED/B Change

CNT/B Cable

Check LIPS

LIPS Change

LED Display

Abnormal

LED Off

LED Dark

LED Abnormal

LED Loss

LED Flicker

Check PCBA

Check Wire

AD/B Change

LIPS Change

LED/B Change

CNT/B Cable

LIPS Change

NG

TEST Next Step

Completed

68

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Defect Mode

Abnormal BIOS

&OSD

Failure Analysis Repair Testing

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

OSD Key

Unavailable

OSD Can’t

Input

OSD Can’t

Read

OSD No

Display

Check PCB

AD/B Change

CNT/B Change

LIPS Change

OSD Jiggle

OSD Display

Abnormal

Check Wire

Check BIOS

CNT/B cable

LVDS cable

VGA cable

DVI cable

BIOS Update

Abnormal

Loudspeaker

Voice Loss

Abnormal

Loud

L/R

Abnormal

No Voice

L/R Same

Volume

Loudspeaker

Noise

Check PCBA

Check Wire

Check Loudspeaker

Next Step

AD/B Change

CNT/B Change

LIPS Change

C/B Cable Change

Loudspeaker

Change

NG

TEST

Completed

69

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Defect Mode Failure Analysis Repair Testing

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

Other Abnormal

Display

Display Shut

Down

Check PCBA

Display Flicker

((tapping )

Check Panel

Check PCBA

Check Panel

AD/B Change

LIPS Change

CNT/B Change

Panel Change

AD/B Change

CNT/B Change

Panel Change

DVI Signal

Display

Abnormal

Check PCB

Check EDID Code

AD/B Change

EDID Update

Next Step

NG

TEST

Complete

70

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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.

‹ Perform 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.

‹ Perform 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

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VG1930wm-3

7. Block Diagram

VSC VG1930wm-3 A/D Board BLOCK DIAGRAM

72

ViewSonic Corporation

Confidential - Do Not Copy VG1930wm-3

8. Schematic Diagrams

CN2

SCJ-0356M5(B)

1

2

3

4

5

Vau

7 AUDIO_MUTE

R11

U_GND

4.7K

1

+5V

R7

22K

Q2

MMBT3904L

U_GND

3

2

1

CN13

PITCH 2.0 180度

CN14

1

2

3

PITCH 2.0 180度

+5V 4,6,7

Shutdown

R9

NC -> 1K

U_GND

U_GND

U11

+5Vau

LEFTIN

去掉得元件06/08/17

UTC7805/NC

RIGHTIN VOR

VOL

U_GND

+12V 6

+ TC23

220uF/16V/NC

7 Volume

+5Vau

FB10

+5V

120 OHM BEAD

Connect the net +5Vau & +5V

1

L1

2

BW FCM1608K-300T07

C2 1uF R2

1

L2

2

BW FCM1608K-300T07

C4 1uF R4

+5V

R8

10K

R10 4.7K

C1

0.1uF

20K

20K

U_GND

U_GND

U2

R1

TC33

20K -> 33K

4

6

Vol

5

2.2uF/16V

13

Vin1 +OUT1

By pass

PT2300

SE/BTL

Vin2

-OUT1

14

16

12

R5

Shutdown

20K -> 33K

7

1

8

VO2

Shutdown

GND

+OUT2

-OUT2

9

11

+5V

U_GND

Vau

R6

4.7K

C3 0.1uF

R3

R126 300K

10K -> 100K

U_GND

CN1

2

1

Rout

CN5

1

2

Lout

Add the capacitor for balance the Vau & DC Vol

R12

2K

1

Q1

MMBT3904L

R13

330

Vau

C71

0.1uF

U_GND

+5V

+

TC2

10uF/16V RA1

Vau

Shutdown

RA3

+5Vau

U_GND

R14

10K---4.7K

R15

10K---22K

U_GND

0R/NC

RA2

0R

0R

Q3

AO3401

120 OHM BEAD

FB11

120 OHM BEAD

FB1

R17 4.7K--10K

1

C5

0.1uF

Q4

MMBT3904L

+

TC3

10uF/16V

R18

10K

U_GND U_GND

L0603 --> L0805

U_GND U_GND

U_GND

ViewSonic Corporation

Model

Title AUDIO

Date Rev:

73

ViewSonic Corporation

Confidential - Do Not Copy VG1930wm-3

B

G

R

HSI

VSI

SDA_A

SCL_A

11

12

13

14

15

CN6

DB15

4

9

3

8

2

7

1

6

5

10

R

R_GND

G

G_GND

B

B_GND

VGA5V

VGA5V

HPDVGA

B_GND

G_GND

R_GND

VGA5V 6

D2

BAV99

D3

BAV99

D1

BAV99

C13 0.1uF

C14 0.1uF

C15 0.1uF

R29

D4

NC/3.6V

0/1K

+5V

R19

R20

R21

R22

56Ω 1/16W

56Ω 1/16W

56Ω 1/16W

470Ω 1/16W

R26

R27

R28

100Ω 1/16W

100Ω 1/16W

100Ω 1/16W

C6 0.047uF

C7 0.047uF

C8 0.047uF

C9 1000pF

C10 0.047uF

C11 0.047uF

C12 0.047uF

BIN 7

GIN 7

RIN 7

SOG 7

GNDB 7

GNDG 7

GNDR 7

CN8

32

31

Shell

RX2-

RX2+

GND

RX4-

RX4+

SCL

SDA

VS

RX0-

RX0+

GND

RX5-

RX5+

GND

RXC+

RXC-

RX1-

RX1+

GND

RX3-

RX3+

5V

GND

HP

Shell

RED

GRN

BLU

HS

GND

21

22

23

24

17

18

19

20

25

26

27

28

29

13

14

15

16

9

10

11

12

7

8

5

6

3

4

1

2

GND

DVI-I

GND

DATA2-

DATA2+

SCL_D

SDA_D

DATA1-

DATA1+

DVI5V

DVI5V

DVI5V 6

HPDDVI

DATA0-

DATA0+

DCLK+

DCLK-

HSI

VSI

D7

MLL5232B 5.6V

D8

1N4148

D9

MLL5232B 5.6V

VGA5V

HPDVGA

DVI5V

HPDDVI

FB2

120 OHM BEAD -> 0 ohm

D10

1N4148

R32

R33

R34

2.2KΩ 1/16W

C18

33pF

R35

2.2KΩ 1/16W

C19

220pF -> 33pF

1K 1/16W

1K 1/16W

HSYNC 7

VSYNC 7

D40

ESD

D42

LL5232B 5.6V 5%

VGA5V

R130 10KΩ 1/16W

R131 100Ω 1/16W

C83

0.1uF

DET_VGA 7

DATA0-

DATA1+

DATA1-

DATA2+

DATA2-

DCLK+

DCLK-

D11

ESD

DATA0+

D13

LL5232B 5.6V 5%

D14

BAV99

C23

D15

BAV99

C24

0.1uF

0.1uF

DVI5V

R36

C22

0.1uF

10KΩ 1/16W

R37 100Ω 1/16W

Q13

1

MMBT3904L

R141

4K7 -> 100K

HDCP FUNCTION

HPD_CTRL

5

DET_DVI 7

D16

BAV99

C25

D17

BAV99

C26

D18

BAV99

C27

D19

BAV99

C28

D20

BAV99

C29

0.1uF

0.1uF

0.1uF

0.1uF

0.1uF

D21

BAV99

C30

0.1uF

R39

L3

QTC24CE/4P2R 0

R41

R44

10Ω 1/16W

10Ω 1/16W

10Ω 1/16W

L4

QTC24CE/4P2R 0

R46

R48

L5

QTC24CE/4P2R 0

10Ω 1/16W

10Ω 1/16W

10Ω 1/16W

10Ω 1/16W

+5V

R50

R53

L6

QTC24CE/4P2R 0

R58 10Ω 1/16W

R59

10K

D22

3.6V

7

7

SDA_A

SCL_A

7

7

LL5232B 5.6V 5%

SDA_D

SCL_D

LL5232B 5.6V 5%

D45

D44

ESD C21

100pF

D46

D12

ESD

C20

100pF

LL5232B 5.6V 5%

SDA_D

SCL_D

D47 D43

ESD C82

100pF

D48 D41 C84

ESD 100pF

LL5232B 5.6V 5%

R+ 7

R- 7

G+ 7

G- 7

B+ 7

B- 7

CLK+ 7

CLK- 7

SDA_A

SCL_A

ViewSonic Corporation

Model

Title INPUT

Date Rev:

74

ViewSonic Corporation

Confidential - Do Not Copy VG1930wm-3

7 PA[0..9]

7 PB[0..9]

PA[0..9]

PB[0..9]

PA0

PA1

PA2

PA3

PA4

PA5

PA6

PA7

PA8

PA9

PB0

PB1

PB2

PB3

PB4

PB5

PB6

PB7

PB8

PB9

LVA3P

LVA3M

LVACKP

LVACKM

LVA2P

LVA2M

LVA1P

LVA1M

LVA0P

LVA0M

LVB3P

LVB3M

LVBCKP

LVBCKM

LVB2P

LVB2M

LVB1P

LVB1M

LVB0P

LVB0M

RXE3+

RXE3-

RXEC+

RXEC-

RXE2+

RXE2-

RXE1+

RXE1-

RXE0+

RXE0-

RXO3+

RXO3-

RXOC+

RXOC-

RXO2+

RXO2-

RXO1+

RXO1-

RXO0+

RXO0-

VLCD

Modify 20050803: FPC LVDS

0/NC

JP1

19

20

21

22

23

24

13

14

15

16

17

18

25

26

27

28

29

30

7

8

9

10

11

12

4

5

6

1

2

3

CON30

VCC3.3

VCC3.3

6,7

R61

10K/NC

VCC_TEST&ODCTRL

FOR 19" FSC PANEL

R62

0/NC

VCC_TEST&ODCTRL 7

AGND

VCC_TEST&ODCTRL is used for OVER DRIVE function control.

75

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Confidential - Do Not Copy VG1930wm-3

LVB0M

LVB1M

LVB2M

LVBCKM

LVB3M

LVA0M

RXO0-

RXO1-

RXO2-

RXOC-

RXO3-

RXE0-

LVA1M

LVA2M

LVACKM

LVA3M

RXE1-

RXE2-

RXEC-

RXE3-

VCC_TEST&ODCTRL

JP2

11

13

15

17

19

21

23

25

1

7

9

3

5

HEADER 13X2

12

14

16

18

20

22

24

26

2

8

10

4

6

VLCD

VLCD 6

RXO0+

RXO1+

RXO2+

RXOC+

RXO3+

RXE0+

RXE1+

RXE2+

RXEC+

RXE3+

LVB0P

LVB1P

LVB2P

LVBCKP

LVB3P

LVA0P

LVA1P

LVA2P

LVACKP

LVA3P

TC4

100uF/16V/NC

C31

0.1uF

ViewSonic Corporation

Model

Title

Date

PANEL INTERFACE

Rev:

7 on_Panel

CN10

10

9

8

7

6

5

4

3

2

1

HEADER5X2

F2

24V/5A/DIP/NC

DIP

BL_ON

BL_ADJ

+

TC20

220uF/16V

C85

L10 L1206

1 2

MLB-201209-0220P-N2

0.1uF

+5V

F1

24V/5A/NC

+

TC21

220uF/16V/NC

C86

0.1uF/NC

+12V

1

L11 L1206

MLB-201209-0220P-N2/NC

+12V 3

BL_ON

+5V

C38

0.1uF/NC

R67

10K

R68

Q5

1 R70

MMBT3904L

0/NC

4K7

+5V

R69

10K on_BACKLIGHT 7

BL_ADJ R74

C41

1uF

+5V +5V

4K7

R72

1K

R75

Q7

1

MMBT3904L

R77

0/NC

4K7 -> 100K

R73

10K

Adj_BACKLIGHT 7

R79

10K

R82

VCC_PANEL

R80

10K

4K7

1

C42

0.1uF

Q9

MMBT3904L

VLCD

Q8

AO3401

VLCD 5

VCC_PANEL

R81

0

+

TC10

10uF/16V

R83

10K

VCC_3.3

+5V

+12V

1

S3

L1206

2

1

S5

L1206

2

1

S12

L1206

2

VCC_PANEL

DVI5V VGA5V

3,4,7 +5V

4 DVI5V

+5V

D28

SSM12L

D27

BAT54C-GS08

VGA5V 4

VCC5V

C43

0.1uF/NC

T0-263 For 15" 3.3V Panel

3

U5 1084-33CM/NC

VI VO

2

VO

4

+

TC11

100uF/16V/NC

C44

0.1uF/NC

VCC_3.3

C81

0.1uF

03/21 MODIFY

L12 L1206

1 2

MLB-201209-0220P-N2/NC

3

1

T0-252

U10

2

VIN VOUT

4

ADJ

1117-33

TAB

+

TC22 C80

100uF/16V

0.1uF

VCC3.3

VCC3.3 5,7

VCC1.8

VCC1.8 7

D26

1N4148

B

R78

100

R71

50

+

TC9

4.7uF/50V

D25 1N4148

Q6

CHT2907

R76

2K

VCTRL 7

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

ViewSonic Corporation

Model

Title POWER (DC TO DC)

Date Rev:

76

ViewSonic Corporation

Confidential - Do Not Copy VG1930wm-3

4

4

SDA_A

SCL_A

4

4

SDA_D

SCL_D

BUZ_ON

BZ1

Q12

2N3906/NC

VDVI VMPLL

VPLL

AVDD VDDP VDDC

VCC5V

R107

10K

R86

R87

R90

R91

+5V

CN11

1

2

3

4

JWT-A2001WV2-04/NC

100

100

VCC5V

R88

10K

100

100

TC19

10uF/16V

C63

0.22uF

R89

10K

C60

0.1uF

R84

10K

VCC3.3

R85

10K

4

4

4

4

4

4

4

4

B+

B-

G+

G-

R+

R-

CLK+

CLK-

4

4

4

4

4

4

4

RIN

GNDR

GIN

GNDG

SOG

4

4

BIN

GNDB

HSYNC

VSYNC

AVDD

U8

8

7

3

4

VDD

HOLD#

WP#

VSS

SDO

CE#

SCK

SDI

PM25LV010

C64 22pF

C65 22pF

R92

6

5

2

1

C58

1uF

12

13

100

1

9

10

6

7

3

4

18

17

27

28

30

31

23

22

20

19

21

390 1% 15

26

25

C45

0.1uF

U7

66 82

RIN0P

RIN0N

GIN0P

GIN0N

SOGIN0

BIN0P

BIN0N

HSYNC0

VSYNC0

DDCA_SDA/RS232_TX

DDCA_SCL/rs232_RX

RX2P

RX2N

RX1P

RX1N

RX0P

RX0N

RXCKP

RXCKN

DDCD_SDA

DDCD_SCL

REXT

REFP

REFM

VDDC VDDC

VCTRL

LVA3P

LVA3M

LVACKP

LVACKM

LVA2P

LVA2M

LVA1P

LVA1M

LVA0P

LVA0M

LVB3P

LVB3M

LVBCKP

LVBCKM

LVB2P

LVB2M

LVB1P

LVB1M

LVB0P

LVB0M

TSUM56AL/TSUM16AL

NC

NC

NC

GPIO_P23

GPIO_P22

37

38

39

40

84

96

SDO

SCZ

SCK

SDI

RST

XIN

GPIO_P15/PWM0

PWM2/GPIO_P24

GPIO_P27/PWM1

GPIO_P12

PWM1/GPIO_P25

RSTN

GPIO_P00/SAR1

GPIO_P01/SAR2

GPIO_P02/SAR3

GPIO_P06

GPIO_P07

PWM0/GPIO_P26

GPIO_P13

GPIO_P14

GPIO_P16/PWM2

87

88

89

90

35

47

48

85

86

91

92

93

94

95

99

X1

14.318MHZ

97

XOUT

67

68

69

70

71

72

73

74

77

78

81

54

55

58

59

60

61

62

63

64

65

36

45

46

41

42

C67

0.1uF

80

BYPASS

52

53

MODE[0]

MODE[1]

GPIO_P10/I2C_MCL

GPIO_P11/I2C_MDA

44

43

PA0

PA1

PA2

PA3

PA4

PA5

PA6

PA7

PA8

PA9

PB0

PB1

PB2

PB3

PB4

PB5

PB6

PB7

PB8

PB9

PB[0..9]

+5V

PB[0..9] 5

+5V 3,4,6

5 VCC_TEST&ODCTRL

ENHANCE

100

HPD_CTRL4

R142

R95 100

R93

10K

R94 20K

C59 0.1uF

POWER

5,6 VCC3.3

DET_VGA 4 on_PANEL 6 on_BACKLIGHT 6 adj_BACKLIGHT 6

R101

R102

R104

R105

R106

MUTE

R108

10K

100

100

100/NC

1K

1K

VCC3.3

R133

R109

10K

R111

R112

VCTRL 6

PA[0..9]

R132

PA[0..9] 5

5,6 VCC3.3

5,6 VCC3.3

KEY1

KEY2

100

BUZ_CPU

HDCP_SDA

Revised by worry

Volume 3

AUDIO_MUTE 3

0R

100

100

DET_DVI 4

HDCP_SCL

C66

0.1uF

Revised by worry

8

7

6

5

U9

VCC

WP

SCL

SDA

24C16

A0

A1

A2

GND

3

4

1

2

C_VCC

GND GND GND GND GND GND GND GND GND GND

2 5 11 29 33 50 57 76 79 83

VCC3.3

R115 1K/NC

R113

10K

R114

10K

VCC3.3

R118

1K/NC

KEY2

R116

3.9K

UP KEY1

1

R121 3K3/NC

R30 0/NC

BUZ_CPU

VCC3.3

VCC5V

R122

R123

0/NC

0/NC C_VCC

VCC3.3

VCC3.3

R124

10K

R125

10K

C68

0.1uF

R110

10K

POWER

LED_A

LED_G

DOWN

UP

MENU

AUTO

C_VCC

BUZ_ON

8

7

6

5

4

3

12

11

10

9

CN12

ENHANCE

1

C70

0.1uF

D30

R119

1.5K

3.6V

C16

AUTO

0.1uF

C69

0.1uF

D29

VCC3.3

R98

10K

1

VCC3.3

VCC3.3

R117

3.9K

R120

1.5K

3.6V

MENU

C17

0.1uF

R99

330

R103

DOWN

FB4

600 OHM

FB5

VDDP

600 OHM

TC14

10uF/16V

+

VCC3.3

FB6 AVDD

600 OHM

TC15

10uF/16V

+

VCC3.3

FB8 VMPLL

600 OHM

TC17

10uF/16V

+

Q11

MMBT3904L

47

6 VCC1.8

VCC1.8

FB3

C49

0.1uF

C50 C51

0.1uF

0.1uF

C52

0.1uF

C53

0.1uF

C56

0.1uF

LED_G

C62

0.1uF

5,6 VCC3.3

5,6 VCC3.3

R96

10K

1

C87

NC/0.1uF

U12

3

4

1

2

A0

A1

A2

GND

VCC

WP

SCL

SDA

8

7

6

5

NC/24C04

HDCP Key (288Bytes)

R140 NC/0

VCC3.3

VCC3.3

R97

330

R100

Q10

MMBT3904L

R134 NC/10K

VDDC

600 OHM

TC13

+

4.7uF/50V

VCC3.3

FB7

600 OHM

TC16

10uF/16V

+

VCC3.3

FB9

47

C46 C47 C48

0.1uF

0.1uF

0.1uF

VDVI

VPLL

600 OHM

TC18

10uF/16V

+

LED_A

C61

0.1uF

Revised by worry

C54

0.1uF

C55

0.1uF

C57

0.1uF

R135 NC/10K

R136

R137

NC/100

NC/100

R138 NC/10K

R139 NC/0

HDCP_SCL

HDCP_SDA

JP?/NC1

1

2

3

BUZZER

-

Swap the pin

ViewSonic Corporation

Model

Title SCALER

Date Rev:

77

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Confidential - Do Not Copy VG1930wm-3

9. PCB Layout Diagrams

78

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Confidential - Do Not Copy VG1930wm-3

79

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Confidential - Do Not Copy VG1930wm-3

80

ViewSonic Corporation

Confidential - Do Not Copy VG1930wm-3

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Confidential - Do Not Copy VG1930wm-3

82

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Confidential - Do Not Copy VG1930wm-3

83

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Confidential - Do Not Copy VG1930wm-3

10. Exploded Diagram and Exploded Parts List

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

1 C-00008270 151-MF1-KCIEUT9E-1H BEZEL

10

11

12

8

9

6

7

4

5

2

3

13

14

15

16

17

18

19

20

21

22

N/A 705-590-G14CH

CB-00008111 631-030-VG1930H

HW-00008085

N/A

107-005-3082H

123-002-CA787DGH

PANEL

LVD LINE

SCREW

METAL COVER

B-00008270 899-VLG-19A2D-AH

N/A 123-B0D-19A2DH

C-00008271 151-MR1-KCIE9E-12H

PL-00008091 107-010-3073H

AD BOARD

Metal Case

REAR COVER

SCREW

CB-00008115 631-013-VG1930-AH

N/A 121-001-19A2DH

CONTROL WIRE

Support Bracket

B-00008269 860-AB0-190DTLB-PVH POWER BOARD

HW-00008084

HW-00008086

B-00008272

107-005-3032H

108-305-4133H

899-40P-19A2DH

SCREW

SCREW 5

POWER CONTROL BOARD 1

1

5

1

1

1

7

Q'ty

1

1

1

1

1

5

1

N/A 631-006-VG1930H

B-00008271 899-400-19A2DH

N/A

N/A

107-010-3071H

108-S10-4033H

CONNECT WIRE

KEY BOARD

SCREW

SCREW

C-00008272 154-001-19A2D9E-1H HINGE COVER

PL-00008090 151-MS0-HASTANDH STAND ASSY

N/A 131-030-2110H STAND OFF

1

1

2

4

1

1

1

PACKING PART LIST ( VG1930WM-3 )

ViewSonic Model Number: VS11419

Rev: 1a

Item ViewSonic P/N Ref. P/N Location

1 N/A VG1930wm-3 LCD Monitior

Q'ty

1

2 P-00008272 170-002-19V38H PE Foam Bag 1

3 P-00008273 160-00L-19A2DH cushion（LEFT） 1

4 P-00008274

5

6

N/A

N/A

7 N/A

8 CB-00008112

9 CB-00008114

10 N/A

160-00R-19A2DH cushion（Right） 1

005-001-19A2D-BH Carton 1

600-181-3400ICH(by bom) Power cord(by bom) 1

610-181-19GCH

610-181-15GMFH

DVI Cable

D-SUB Cable

1

1

631-U03-17V28H Audio Cable 1

002-M01-19A2D-AH Menu 1

85

V iewSonic Corporation

Confidential - Do Not Copy VG1930wm-3

11. Recommended Spare Parts List

RECOMMENDED SPARE PARTS LIST (VG1930WM-3)

ViewSonic Model Number: VS11419

Rev: 1a

Serial No. Prefix: QC6

Item

1

Accessories:

2

3

PC Board Assembly:

[All PCBA]

Description

Power Cord (U.K) RoHS

Power Supply Board+Inverter Board Assy RoHS

Audio Control Board

ECR/ECN ViewSonic P/N

A-00008092

B-00008269 860-AB0-190DTLB-PVH

B-00008270

Ref. P/N

600-181-5000ICH

899-VLG-19A2D-AH

4 Key Board B-00008271 899-400-19A2DH

5

6

7

8

9

10

Cabinets:

[Front Panel, All

Covers, Base

Cables: [All Cables]

Power Supply Board

Front Panels

Back Cover RoHS

Hinge Cover RoHS

Signal Cable (connect A.D Board) RoHS

Accessory Cable,D-Sub,BLACK JV-4777 30AWG RoHS

B-00008272 899-40P-19A2DH

C-00008270 151-MF1-KCIEUT9E-1H

C-00008271

C-00008272

CB-00008111

CB-00008112

151-MR1-KCIE9E-12H

154-001-19A2D9E-1H

631-030-VG1930H

610-181-15GMFH

25

26

27

28

29

30

11

12

13

14

Documentation:

15

16

19

20

Hardware: [Screw,

Bracket, Hinge,

Washer]

21

Miscellaneous:

22

Packing Material:

23

[Box, Foam, Bags]

24

Plastics: [Pedestal,

Plate, Rubber Foot,

Button, etc.]

Accessory Cable,D-Sub,BLACK JCE RoHS

Audio Cable - 28AWG 180cm,Blank,JVE RoHS

Wire 13p 1.5-2.0 12p+2p*2 A0031460 CME ADD EMI

User Manual + CD Wizard RoHS

Safety label RoHS

Screw B3*5 RoHS

Screw B M3xL5 TP6 RoHS

Screw M4 5*4 1010 steel ROHS

Tape OPP 900*50*0.045mm

Generic Foam

Generic Box

PE Bag 570*600*0.13 RoHS

Foam - Left

Foam - Right

Craft Box

Pedestal RoHS

B 3*10 TP4 E-Plate Ni RoHS

Panel protector film

CB-00008113

CB-00008114

CB-00008115

DC-00008223

DC-00008224

HW-00008084

HW-00008085

HW-00008086

M-00008088

P-00001347

P-00002515

P-00008272

P-00008273

P-00008274

P-00008275

PL-00008090

PL-00008091

PL-00008092

610-181-15GMCH

631-U03-17V28H

631-013-VG1930-AH

002-M01-19A2DH

153-001-19A2DH

107-005-3032H

107-005-3082H

108-305-4133H

831-950-0301H

30833

20653

170-002-19V38H

160-00L-19A2DH

160-00R-19A2DH

005-001-19A2DH

151-MS0-HASTANDH

107-010-3073H

154-002-19A25H

Location Universal number#

Remark 1: Above listed items are examples, supplier can expand the rows to add more necessary items.

Remark 2: All revised RSPLs with newly added items or any change made should be highlighted and correlated with the ECN/ECR approved by ViewSonic

Corporation. This is to eliminate repeated cross checks of each item between this version and prior versions.

86

ViewSonic Corporation

Confidential - Do Not Copy VG1930wm-3

46

47

48

43

44

45

39

40

41

42

49

50

51

52

32

33

34

35

36

37

38

56

57

58

53

54

55

59

60

61

62

63

64

65

70

71

72

73

74

66

67

68

69

78

79

80

81

75

76

77

82

83

84

B-00008270

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

BOM LIST (VG1930WM-3)

6

7

8

2

3

4

5

9

10

11

12

22

23

24

25

19

20

21

16

17

18

13

14

15

29

30

31

26

27

28

Item

1

ViewSonic Model Number: VS11419

Rev: 1a

Serial No. Prefix: QC6

ViewSonic P/N Ref. P/N

DC-00008223 002-M01-19A2DH

N/A

N/A

N/A

P-00008275

N/A

N/A

P-00008274

N/A

M-00008088

N/A

N/A

N/A

003-401-19A2DH

003-H01-19A2DH

003-P01-17V27H

005-001-19A2DH

005-H01-KA17H

006-X01-KC17H

DC-00008224 153-001-19A2DH

PL-00008092

N/A

P-00008272

P-00008273

154-002-19A25H

170-000-PALLETH

170-002-19V38H

160-00L-19A2DH

160-00R-19A2DH

831-410-0600H

831-950-0301H

836-045-0500SH

841-001-19A2DH

705-590-G14CH

N/A 932-000-HDCPH

HW-00008084 107-005-3032H

HW-00008085 107-005-3082H

PL-00008091 107-010-3073H

HW-00008086 108-305-4133H

N/A

N/A

123-002-CA787DGH

123-B0D-19A2DH

Description

19A2D MENU ASSY for TaiWan Jingpuze RoHS

19A2D Carton Label 合成紙 76.2*76.2 Sunway RoHS

19A2D Small Barcode Label 合成紙 RoHS Sunway

17V27 pallet Label white paper75*40 RoHS SUNWAY

19A2D Carton 瓦楞紙 RoHS

CORNER PROTECTOR PALLET 50mm*50mm*900mm RoHS

Corner Protector 50mm*50mm*1850mm RoHS

19A2D Safety label RoHS

19A25 Panel protector film XG-536 T=0.1 With_Print JsutEuter

PE Sheet LDPE Transparent 1850*1600mm RoHS

19V38 Pe Bag white LDPE 570*600*0.13 RoHS

19A2D Folyform-L EPS MingChan RoHS

19A2D Folyform-R EPS MingChan RoHS

ALL LCD PP Belt 10*0.8 Yellow 10KG RoHS

19V3F Tape OPP 900*50*0.045mm Symbio RoHS

VOLUBLE FILM 450mm*400m RoHS

19A2D PATTET Wooden RoHS

19"CMO-W PANEL(M190A1-L02) time:5ms RoHS

A HDCP Receiver key

SCREW B3*5 ISO E-PLATE WHITE Zn RoHS

SCREW B M3xL5 TP6 E-PLATE COLOR Zn RoHS

B 3*10 TP4 E-PLATE Ni RoHS

SCREW M4 5*4 1010 steel ROHS

CA787DG METAL COVER SECC=0.6t RoHS

19A2D METAL-CASE SECC T=1.0 DongFa/Wei yao RoHS

Location

N/A

N/A

154-M00-8090H

154-M00-DA985DGH

CB-00008112 610-181-15GMFH

Mylar 80*90*0.3mm PET TRANSLUCENCY RoHS

DA985DG MAYLER 173*115*0.3mm PET

Accessory Cable,D-Sub,BLACK JV-4777 30AWG RoHS

CB-00008113 610-181-15GMCH

CB-00008115 631-013-VG1930-AH

B-00008269

Accessory Cable,D-Sub,BLACK JCE RoHS

Wire 13p 1.5-2.0 12p+2p*2 A0031460 CME ADD EMI RoHS

860-AB0-190DTLB-PVH 19"POWER+INVERTER MOUSE 3PIN C201 100uf/400V REV:A+ RoHS

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

899-VLG-19A2D-AH

003-001-ADBIOSH

330-100-16253-WH

330-100-16253-JH

330-101-16253-WH

330-221-16203-W1H

330-2R2-50253-WH

330-4R7-50253-WH

409-005-0105BAH

483-302-2388H

485-415-9001TH

485-D25-R001TH

485-D25-R001ZH

504-A00-PT2300H

531-143-49US-2H

630-002-1009H

630-012-1009H

630-026-S2006H

631-003-VG1930-AH

852-VLG-19A2D-AH

200-100-VG1930-AH

281-031-39004H

281-031-47004H

281-031-49R94H

281-031-56R04H

281-031-75R04H

281-035-0R04H

281-035-0R04H

281-035-0R04H

281-035-1004H

281-035-1014H

281-035-1014H

281-035-1024H

281-035-1034H

281-035-1044H

281-035-1044H

281-035-1214H

281-035-1524H

281-035-2024H

281-035-2034H

281-035-2224H

281-035-2234H

281-035-3034H

281-035-3044H

281-035-3314H

281-035-3924H

281-035-4704H

281-035-4724H

285-056-B160CH

330-221-16203-W1H

381-101-032554H

381-102-035054H

381-220-032554H

PCBA,19A2D,A/D Board With Audio,REV:A RoHS

ALL CMO LCD BIOS Label poly 40*8mm RoHS dispersing 10uF 16V 105C M TP 4*5 HUAWEI RoHS dispersing 10uf 16V 105C 4*5 jian long RoHS

EC 100uF 16V 105D M TP MI 009 6*5 FOR RoHS dispersing sh

EC.220uF/16V 105°C Φ6*11 dispersing shorting,huawei 180

2.2uF 50V 105D 4*5 RoHS 180D dispersing shorting,huawei Roh

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

TC22

TC20

TC33

EC 4.7uF 50V 105DEGREE MTP 4*5dispersing shorting,huawei RoH TC13,TC9

PHOE JACK GREEN+BLACK SCPRE RoHS CN2

FEMALE180D 2.5P 254FH15 1S H8.50mm TY RoHS CN10

D-SUB 15P 8.89 PC99 90D FEMALE1285-15S-004-98F RoHS TEKCOCN6

DVI-D/25P/90D(1241-440-054-32)TEKCON RoHS

DVI-D 25P 90D FEMALE NTK RoHS

AUDIO AMP IC FOR PTC PT2300 RoHS

KTS QYSTAL 14.318MHZ. 20PF FOR RoHS

BASE 2pin JWT A2001 PITCH=2mm Straight FOR RoHS

BASE 12P PITCH 2.0 FOR RoHS

CN8

U2

X1

CN1,CN5

CN12

BASE 2.0 26P /JWTA2006 STRAIGHFOR ROHS 2 ARRAY JP2

Boand-in Wier 2.0 3p CME A0031459 RoHS

SMD,19A2D,A/D Board With Audido,REV:A RoHS

VSC VG1930 A/D B PCB,MST,TSUM56AWHL Rev:A RoHS

SMD 390ohm +-1% 1/10W 0603 RoHS

SMD 470ohm +-1% 1/10W 0603 RoHS

RES 49.9ohm 1% 1/10W 0603 SMD.RoHS

RES 56.OΩ +-1% 0603 SMD RoHS

RES 75 1% 1/10W 0603 SMD RoHS

SMD 0ohm +-5% 1/10W 0603 RoHS

SMD 0ohm +-5% 1/10W 0603 RoHS

SMD 0ohm +-5% 1/10W 0603 RoHS

SMD,10ohm,+-5%,1/10W,0603 Green I

SMD 100ohm +-5% 1/10W 0603 RoHS

SMD 100ohm +-5% 1/10W 0603 RoHS

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

SMD 1K +-5% 1/10W 0603 Green I

SMD 10K +-5% 1/10W 0603 Green I

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,

Chip Resistor SMD +-5% 0603 1/10W 100K ohm Green I

Chip Resistor SMD +-5% 0603 1/10W 100K ohm Green I

RES 120 5% 1/10W 0603 SMD

RES 1.5K 5% 1/10W 0603 SMD. RoHS

SMD,2K,+-5%,1/10W,0603,RoHS

SMD 20K +-5% 1/10W 0603 Green I RoHS

SMD 2.2K +-5% 1/10W 0603 RoHS

SMD R 22K 0603 RoHS

SMD 30Kohm +-5% 1/10W 0603 Green I

R3

R141

FB2

R119,R120

R76,R12

R2,R4,R94

R34,R35

R15

R1,R5

R126 RES 300K 5% 1/10W 0603 SMD. RoHS

RES 330 5% 1/10W 0603 SMD. FOR RoHS

SMD 3.9K +-5% 1/10W 0603 RoHS

RES 47ohm 5% 1/10W 0603 SMD. FOR RoHS

SMD 4.7K +-5% 1/10W 0603 GreenII

SMD VARISTOR 0603 5.5V 10pF RoHS HongDe

EC.220uF/16V 105°C Φ6*11 dispersing shorting,huawei 180

SMD CC NPO 100pF/25V 0603 +-5%RoHS

NPO 1000P/50V +-5% 0603 SMD RoHS

SMD CC 22pF 25V NPO 0603. for RoHS

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

1

2

1

1

1

1

1

1

2

1

1

1

1

1

7

7

1

1

1

1

1

3

3

1

1

1

1

2

1

6

3

Universal number# Q'ty

1

1

1

0.032

1

0.125

0.125

1

1

0.032

1

1

1

0.002

0.0725

0.008

0.032

1

1

1

7

1

1

5

5

1

1

1

1

1

1

13

5

2

3

1

2

25

1

1

1

3

2

2

1

2

6

1

2

7

4

1

2

87

V iewSonic Corporation

Confidential - Do Not Copy VG1930wm-3

97

98

99

94

95

96

100

101

102

103

89

90

91

92

93

125

126

127

128

129

130

131

132

133

119

120

121

122

123

124

105

106

107

108

109

110

111

112

113

114

115

116

117

118

139

140

141

142

143

144

145

146

147

148

149

134

135

136

137

138

Item ViewSonic P/N

85

86

87

88

104

N/A

N/A

N/A

N/A

Ref. P/N

381-330-032554H

381-681-032554H

382-222-032564H

385-104-032584H

Description

NPO 33PF/25V +-5% 0603 SMD RoHS

SMD CC 680pF 25V NP0 0603 RoHS

SMD CC 2200pF/25V X7R 0603. RoHS

SMD CC Y5V 0.1uF/25V -20%~+80%0603 RoHS

Location

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,

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

B-00008271

N/A

N/A

N/A

N/A

B-00008272

N/A

385-105-031684H

385-473-032584H

506-524-LC16-MH

506-525-L1005H

506-5PM-25LV010EH

Y5V 1uF/16V +80-20% 0603. for RoHS

Y5V 0.047u/25V +80%-20% 0603for RoHS

EEPROM,24LC16BT-I/SNG S08 RoHSMicrochip

MX25L1005 FLASH IC 1M 33Mhz RoHS

PMC SPI FLASH 25LV010E RoHS

506-CTS-M56AWHL-1H MSTAR TSUM56AWHL-LF-1 For RoHS

506-RAS-1117-33H LDO AS1117L 3.3V SOT-223 A1 RoHS

518-02N-3904H

518-02N-3904-FH

518-02N-3904H

518-02N-3904-FH

518-02N-3906H

518-02N-3906-FH

518-FAO-3401H

518-TCH-2907AH

528-200-BAV99-CH

528-2BA-T54CH

528-DSS-M12LH

528-R1N-4148H

529-350-03R6H

529-350-05R6H

780-103-300C04H

780-103-301C02H

780-103-601C07H

780-104-600C30H

780-104-600E30H

780-104-601C30H

780-107-121C50H

780-107-121J50H

899-400-19A2DH

200-K00-VG1930H

403-720-PTCFH

403-720-04TSCFAH

638-006-2611H

899-40P-19A2DH

200-K01-VG1930AH

TR NPN PMBS3904 40V 100mA SOT-23 RoHS PHILIPS

TR NPN MMBT3904LT1 40V 100mA SOT HM RoHS

TR NPN PMBS3904 40V 100mA SOT-23 RoHS PHILIPS

TR NPN MMBT3904LT1 40V 100mA SOT HM RoHS

U7

U10

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

Q13

TR PNP PMBS3906 40V 100mA SOT-23 RoHS PHILIPS

TR PNP MMBT3906LT1 40V 100mA SOT23 HM RoHS

Transistor P-MOS,SOT-23,AO3401,-30V/-4.2A AO RoHS

Q12

Q8

Transistor CHT2907A SOT-23 Chenmko RoHS Q6

D1,D2,D3,D14,D15,D16,D17,D18,D

Switching Diode,BAV99,SOT-23 PHILIPS RoHS

SMD DIODE BAT54C SOT23.FOR RoHS

19,D20,D21

D27 schottky barrier 20~40V 1A D0-214AC SSM14LPT Chenmko RoHS D28

DIODE 1N4148 SOT-34 SMD. for RoHS

ZENER BZT52C3V6 3.6V SOD123 Chang dian RoHS

SMD ZENER 5.6V BZT52C5V6 Changdian RoHS

BEAD 30ohm 400mA 0603 CHILISINRoHS

BEAD SMD 300ohm,200mA,+-25% CHILISIN RoHS

BEAD SMD 600ohm/1A,0603 +-25% CHILISIN RoHS

SMD BEAD 0805 60Ω/100MHz 3A CHILISIN FOR RoHS

SMD BEAD 0805 60Ω/100MHz 3A FOR ROHS

SMD BEAD 600ohm 3A 0805 100MHZ RoHS CHILISIN

BEAD SMD 120ohm/5A 1206 CHILISIN RoHS

BEAD 120ohm 1206 5A 1206 Jantek FOR RoHS

PCBA,Control Key Board 19A2D(VG1930WM),RoHS

VSC VG1930wm CONTROL KEY PCB RoHS

SMD TACT SW SIDE KEY PTCF ALTA RoHS

C59,C60,C61,C62,C66,C67,C68,C69,

C2,C4,C41,C58

C6,C7,C8,C10,C11,C12

U9

U8

D8,D10,D26,D25

D22,D29,D30

D9,D7,D13,D42

L17,L18,L19

L13,L14,L15,L16

FB12

L1,L2

SMD TACT SW SIDE KEYTSCF-31C HUA-JIE RoHS 180gf SW2,SW3,SW4,SW5,SW6

SMD Wafer P1.5 6P 90D 5W1.2611B ARC RoHS

PCBA,Power Key Board 19A2D(VG1930WM),RoHS

VSC VG1930wm Power Control KeyPCB REV:A RoHS

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

S5,L10

SW2,SW3,SW4,SW5,SW6

CN5

N/A

N/A

N/A

403-720-02TSUYH

528-LPB-3227H

638-002-2611H

N/A

N/A

C-00008270

C-00008271

PL-00008090

C-00008272

N/A

N/A

N/A

N/A

N/A

N/A

N/A

A-00008092

151-MR1-KCIE9E-12H

151-MS0-HASTANDH

154-001-19A2D9E-1H

107-010-3071H

108-S10-4033H

121-001-19A2DH

126-030-ALM7H

126-030-ALP1H

126-030-ALP6H

131-030-2110H

600-181-5000ICH

N/A

N/A

600-181-5000NCH

631-006-VG1930H

CB-00008111 631-030-VG1930H

SMD TACT SW 180D TSUY-2SL HUA-JIE RoHS

SMD Wafer P1.5 2P 90D 5W1.2611B ARC RoHS

19A2D Rear ASS'Y EM-009E ABS-PA757 Black Fuking RoHS

19A2D HASTAND RoHS

19A2D Hing Cover EM-009E ABS HG Guan Yi RoHS

SCREW B-Head 3.0*10 BLK RoHS

SCREW M4*10 P=0.7 Ni-Plate Fe RoHS SHYE CHing

19A2D SUPPORT PLATE SECC T=1.0 DongFa RoHS

C9 insulating film AL FOIL 70*30mm EMI FOR RoHS

AL FOIL 80*30mm RoHS

AL FOIL 50*30mm RoHS signal cable Hex head screw 3.0 mm L=12mm RoHS

P/C SP-60/IS-14,Black,U.K.,1.8M,I-sheng RoHS

P/C LP-60L,H05VV-F,LS-60,Black1.8M,Linetek,RoHS

Wier 6P1.5 A0031461 CME RoHS

LVDS 30P A0031458 CME RoHS

SW1

SMD KED KPB-3227SYKQBCC (V1) BLU/Org KINGBRIGHT D1

CN2,CN3

638-006-2611H

638-013-2611H

SMD Wafer P1.5 6P 90D 5W1.2611B ARC RoHS

SMD Wafer P1.5 13Pin 90D 5W1.2611B ARC RoHS

CN4

CN1

151-MF1-KCIEUT9E-1H 19A2D BEZEL ASS'Y UT+9E ABS-PA757 VSC+ENERGY STAR Fuking

CB-00008114 631-U03-17V28H

N/A 631-U03-17V28CH

N/A

N/A

N/A

831-B10-01013-ALZH

831-B10-3502-ALZH

831-B14-3502-ALZH

17V28 AUDIO CABLE A170E1-H01 28AWG 180cm,Blank,JVE RoHS

Audio cable 28AWG 180cm Black RoHS JCE

AL CONDUCTIVE FOAM W10*H13*L10mm ZONGCHEN ROHS

AL CONDUCTIVE FOAM L40*W14*H2 mm ZONGCHEN ROHS

AL CONDUCTIVE FOAM L25*W14*H2 mm ALGK RoHS

Universal number# Q'ty

2

2

1

7

1

1

1

1

7

1

1

1

1

45

4

6

1

1

1

2

1

1

1

1

1

1

1

1

1

1

5

5

1

2

2

4

3

4

2

1

8

2

11

1

1

4

3

1

4

1

1

1

1

2

4

1

1

1

1

1

1

1

1

1

1

88

V iewSonic Corporation

Confidential - Do Not Copy VG1930wm-3

* Reader’s Response*

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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.

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

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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

1. Service Manual Content

2. Service Manual Layout

3. The form and listing

Excellent Good Fair

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V iewSonic Corporation

Confidential - Do Not Copy VG1930wm-3