ViewSonic VA1912w-2, VA1912wb-2, VS10866 Service Manual

ViewSonic VA1912w-2

VA1912wb-2

Model No. VS10866

19” Color TFT LCD Display

(VA1912w-2_VA1912wb-2_SM Rev. 1b Aug. 2006)

ViewSonic 381 Brea Canyon Road, Walnut, California 91789 USA - (800) 888-8583

Service Manual

ViewSonic Corporation

Copyright

Copyright © 2006 by ViewSonic Corporation. All rights reserved. No part of this publication may be reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any language or computer language, in any form or by any means, electronic, mechanical, magnetic, optical, chemical, manual or otherwise, without the prior written permission of ViewSonic Corporation.

Disclaimer

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

Revision History

Revision SM Editing Date ECR Number Description of Changes Editor

1b 8/09/2006 VS-E060210 Add VA1912wb-2 from VA1912w-2 Jamie Chang

1a 04/14/2006 Initial Release Jamie Chang

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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.

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TABLE OF CONTENTS

1. Precautions and Safety Notices 1

2. Specification 3

3. Front Panel Function Control Description 10

4. Circuit Description 16

5. Adjustment Procedure 17

6. Troubleshooting Flow Chart 37

7. Recommended Spare Parts List 45

8. Exploded Diagram and Exploded Parts List 50

9. Block Diagram 52

10. Schematic Diagrams 53

11. PCB Layout Diagrams 60

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1. Precautions and Safety Notices

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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 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

VA1912w-2_VA1912wb-2

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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 with cushion Take out the monitor by grasping the LCD panel.

That may cause “ MURA“.

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

That could scratch the surface of panel

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2. Specification

2.1 INSTRUCTION

FEATURES VA1912w-2 / VA1912wb-2

Size 19” wide

Luminance (Typ, cd/㎡) 300 cd/㎡

Contrast Ratio (Typ) 500:1

Colors ( 6 bit + 2 bit FRC) 16.2 M colors

Response Time (Typ) 8 ms

Viewing Angle (H/V) 150 ° / 130 °

TFTLCD PANEL

Recommend resolution 1440 x 900@60Hz

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

Input Signal

Digital No

Separate Sync Yes

Composite Sync No

Sync Compatibility

Sync on Green No

PC Yes

Power Mac Yes

Compatibility

TV Box (NextVision 6) Yes

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

On Mode(Max / Typ) 36W(max) / 32W(typ)

Power Consumption

Active Off Mode (Max) 2W

Audio Amplifier / Speaker 1.5 W / 2.5W x 2

Tilt ( 20 ° to -5 °)

Ye s

Swivel No

Pivot No

Ergonomics

Height Adjust No

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

Physical (W x H x D mm)

451 x 391 x 197 (mm)

17.8 x 15.4 x 7.8 (in)

Dimension

Package (W x H x D mm)

538 x 470 x 158 (mm)

21.2 x 18.5 x 6.2 (in)

Physical (Net kg/lb) 4.5kg (9.9lb)

Weigh t

Package (Gross Kg/lb) 6.2kg (13.7lb)

Temperature (℉/℃) 41℉-95℉/+5℃-+35℃

Operating Condition

Humidity (%) 20 % - 80 %

Temperature (℉/℃) -4℉-131℉/-20℃-55℃

Storage Condition

Humidity (%) 20 % - 85 %

Regulation

CB / TCO99 / UL/cUL / FCC-B / ICES 003 / Argentina-TUV/S / NOM / EPA Energy

Star / TUV/Ergo / ISO13406-2 / TUV/GS / CE / GOST-R / SASO / BSMI / PSB /

C-Tick / Korea (MIC) / CCC

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2.2 GENERAL SPECTION

Test Resolution & Frequency 1440 x 900 @ 60Hz

Test Image Size Full Size

Contrast and Brightness Controls

Factory Default:

Contrast = 70%, Brightness = 100%

2.3 VIDEO INTERFACE

Analog Input Connector DB-15 (Analog), refer the appendix A

Digital Input Connector N/A

Default Input Connector Defaults to the first detected input

Video Cable Strain Relief Equal to twice the weight of the monitor for five minutes

Video Cable Connector DB-15 Pin out Compliant DDC 2B

Video Signals

Video RGB (Analog)

Separate

Video Impedance 75 Ohms (Analog)

Maximum PC Video Signal 950 mV with no damage to monitor

Maximum Mac Video Signal 1250 mV with no damage to monitor

Sync Signals TTL

DDC 2B Compliant with Revision 1.3

Sync Compatibility Separate Sync

Video Compatibility

Shall be compatible with all PC type computers,

Macintosh computers, and after market video cards

Resolution Compatibility

640 x 350*, 640 x 480, 720 x 400* (640 x 400*), 800 x

600, 832 x 624, 1024 x 768, 1152 x 864, 1280 x 768,

1280 x 960, 1280 x 1024, 1440 x 900

* The image vertical size might not be full screen.

But the image vertical position should be at the center.

Exclusions Not compatible with interlaced video

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2.4 POWER SUPPLY

Power Supply (Adapter) Part Number: 27-D003247

Input Voltage Range

90 to 264 VAC

Input Frequency Range

47 to 63 Hertz

Short Circuit Protection

OUTPUT CAN BE SHORTED WITHOUT DAMAGE

Over Current Protection

FUSE 3.15A TYPI CAL AT 250 VA C

Leakage Current

75 MA (MAX) AT 240VAC / 50HZ

Efficiency 80 % TYPICAL AT 100VAC @60HZ

Fuse

INTERNAL AND NOT USER REPLACEABLE

Power Dissipation

36 WATT S

Max Input AC Current

1.6 ARMS @ nominal RANGE

Inrush Current (Cold Start) 80 A @ 240VAC , 50HZ

Power Supply Cold Start

SHALL START AND FUNCTION PROPERLY WHEN UNDER FULL LOAD, WITH ALL COMBINATIONS OF INPUT VOLTAGE, INPUT FREQUENCY, AND OPERATING TEMPERATURE

Power Supply Transient Immunity

SHALL BE ABLE TO WITHSTAND AN EN61000-4-4 ±2KV TRANSIENT TEST WITH NO DAMAGE

Power Supply Line Surge Immunity

Shall be able to withstand ±2KV (L-L) and ±2.3KV

(L-PE) with no damage

Power Supply Missing Cycle Immunity

Shall be able to function properly, without reset or visible

screen artifacts, when ½ cycle of AC power is randomly

missing at nominal input

Power Supply Acoustics

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

US Type Power Cable

Separate 3-prong NEMA 5-15P type plug. Length =

1.8m. Connects to display.

Color = Black

European Type Power Cable

Schuko CEE7-7 type plug.

Length = 1.8m, Connects to display.

Color = Black

CCC Type Power Cable

Separate 3-prong type plug.

Length = 1.8m. Connects to display.

Color = Black

PSE Type Power Cable

Separate 2-prong NEMA 1-15P type plug. Length =

1.8m. Connects to display.

Color = Black

Power Saving Operation(Method) VESA DPMS Signaling

Power Consumption

ON Mode < 36 W (max) / 32 W (typ)

ACTIVE OFF < 1 W

Recovery Time

ON Mode = N/A, ACTIVE OFF < 5 sec

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2.5 ELECTRICAL REQUIREMENT

Horizontal / Vertical Frequency

Horizontal Frequency

30 – 82 kHz

Vertical Refresh Rate

50 – 85* Hz.

Maximum Pixel Clock 135 MHz (EDID file is 140MHz)

Sync Polarity Independent of sync polarity.

Primary Presets

1440 x 900 @ 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 : 3 seconds (Max), excluding “Auto Adjust” time

● Under DOS mode (640 x 350, 720 x 400 & 640 x 400), there is no “Auto Adjust” feature.

● The monitor needs to do “Auto Adjust” the first time a new mode is detected but except the DOS mode 640 x 350, 720 x

400 & 640 x 400.(see section “0-Touch™ Function Actions”)

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

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Timing Table

Item Timing Analog Digital

1 640 x 3 50 @ 70Hz, 31.5kHz Yes No 2 640 x 400 @ 60Hz, 31.5kHz Yes* No 3 640 x 4 00 @ 70Hz, 31.5kHz Yes No

4 640 x 480 @ 60Hz, 31.5kHz Yes No 5 640 x 480 @ 67Hz, 35.0kHz Yes No 6 640 x 480 @ 72Hz, 37.9kHz Yes No 7 640 x 480 @ 75Hz, 37.5kHz Yes No

8 640 x 4 80 @ 85Hz, 43.27kHz Yes No

9 720 x 400 @ 70Hz, 31.5kHz Yes No 10 800 x 600 @ 56Hz, 35.1kHz Yes No 11 800 x 600 @ 60Hz, 37.9kHz Yes No 12 800 x 600 @ 75Hz, 46.9kHz Yes No 13 800 x 600 @ 72Hz, 48.1kHz Yes No

14 800 x 600 @ 85Hz, 53.7kHz Yes No

15 832 x 624 @ 75Hz, 49.7kHz Yes No 16 1024 x 768 @ 60Hz, 48.4kHz Yes No 17 1024 x 768 @ 70Hz, 56.5kHz Yes No

18 1024 x 768 @ 72Hz, 58.1kHz Yes No

19 1024 x 768 @ 75Hz, 60.0kHz Yes No

20 1024 x 768 @ 85Hz, 68.67kHz Yes No

21 1152 x 864@ 75Hz, 67.5kHz Yes No 22 1280 x 1024 @ 60Hz, 63.4kHz Yes No 23 1280 x 1024 @ 75Hz, 79.97kHz Yes No 24 1280x 768 @ 60Hz, 47.78kHz Yes No 25 1280 x 960 @60Hz, 60kHz Yes No 26 1440 x 900 @ 60Hz, 55.96kHz Yes No

*The image vertical size might not be full screen.

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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) Green – ON

Orange – Active Off

Dark = Soft Power Switch OFF

Front Panel Controls (Head)

[;X] [ 1 ] [▼] [▲] [ 2 ] [

]

[

] Power

[ 1 ] BUTTON 1

[ 2 ] Button 2

[▲] UP ARROW BUTTON [▼] DOWN ARROW BUTTON [; X] Audio Mute on/off

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

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

Reaction Time OSD must fully appear within 0.5s after pushing Button 1

Short Cuts Function from the button(s)

[1] Main Menu [2] Adjust Contrast / Brightness

[▼] or [▲]

To immediately activate Contrast menu. It should be change to Brightness OSD by

push button [2]

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

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

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

[1] + [▼] Power Lock

[1] + [▲] OSD Lock

[;X] Audio Mute on /off

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

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Main Menu Controls

Auto Image Adjust*

1

Contrast/Brightness*

2*4

Audio Adjust

Vo l u m e *

4

, Mute*4

Color Adjust

sRGB, 9300K, 6500K(default), 5400, 5000, User Color [R, G, B] Information H Frequency, V Frequency, Resolution, Pixel Clock, Serial Number,

Model Number, “www.ViewSonic.com

” Manual Image Adjust H. Size*

1

, H./V. Position*1, Fine Tune*1, Sharpness*3

Setup Menu

Language [English, French, German, Spanish, Italian, Finnish, Japanese, Traditional Chinese, Simplified Chinese],

Resolution Notice, OSD Position, OSD Timeout, OSD Background

Memory Recall

*

1

These functions are not available in Digital Mode

*

2

These functions are not available under sRGB Mode

*

3

These functions are not available under Native Resolution Mode

*

4

These functions setting can be recalled to default by [▼]+[▲]

[Remark] Please refer to the detail in the Appendix C

Function descriptions

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

2. Clean all the mode setting buffer

3. Execute Auto Image Adjust

Note: Memory Recall should have no effect for Language, Power Lock, User Color Settings or Input Priority

Resolution Notice Actions

1. Resolution Notice OSD should show on screen after changing to non-native mode for 30 sec

2. 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

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)

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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

2.7 AUDIO INTERFACE (SPEAKER SPECIFICATION)

Line input connection

3.5 mm stereo jack

Line input signal 1 Vrms

Line input impedance 20k ohms

Maximum power output (Electric)

1.5W / CH

Signal to Noise Ratio 72 dB

Frequency response 300 TO 20KHZ

Distortion 8%@1kHz

Vibration

There should be no audible vibration with volume at 100%. (Input

signal within 1 Vrms)

Screen image

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

NOTE: THERE IS NO GUARANTEE <1 W POWER CONSUMPTION IN ACTIVE OFF MODE, WHEN THE AUDIO CABLE IS CONNECTED

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3. Front Panel Function Control Description

Adjusting the Screen Image

Use the buttons on the front control panel to display and adjust the OSD controls which display on the screen. The OSD

controls are explained at the top of the next page and are defined in “Main Menu Controls” on page 10.

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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 you want to adjust, press or to scroll up or down the Main Menu.

3. After the 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 or down 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 and down 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.

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).

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, press and . .

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 pr

eset.

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Control Explanation

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 1440 x 900 @ 60Hz (recommended) means that the resolution is 1440 x 900 and the

refresh rate is 60 Hertz.

Manual Image Adjust Sub-menu

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.

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Control Explanation

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.

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.

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Control Explanation

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

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The TSUM17AK 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,, a high quality display processing engine, and an integrated output display interface that can support RSDS panel interface format. To further reduce system costs, the TSUM17AK also integrates intelligent power management control capability for green-mode requirements and spread- spectrum support for EMI management.

The TSUM17AK 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-o versampled systems. The TSUM17AK 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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5. Adjustment Procedure

A. 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’ button on monitor keypad 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: 1280*1024@60Hz Test Pattern:

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

6. Window BG Test Signal: 1280*1024@60Hz Test Pattern:

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

7. 25 Gray Test Signal: 1280*1024@60Hz

Test Pattern:

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

8. 50 Gray Test Signal: 1280*1024@60Hz Test Pattern:

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

9. White Box Test Signal: 1280*1024@60Hz Test Pattern:

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

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10. Black Box Test Signal: 1280*1024@60Hz Test Pattern:

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

11. RED Test Signal: 1280*1024@60Hz Test Pattern:

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

12. Green Test Signal: 1280*1024@60Hz Test Pattern:

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

13. Blue Test Signal: 1280*1024@60Hz Test Pattern:

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

14. Gray_Scale_0-100_V64 Test Signal: 1280*1024@60Hz Test Pattern:

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

15. Function Test Display pattern

Item Pattern Description Remark

1

Gray_Scale_0-100_V

Vertical 64 (256) Gray Scale (right→left，From 0 to 100% White)

Figure 1

2

Gray_Scale_0-100_H

Horizontal 64 (256) Gray Scale (up→down，From 0 to 100% White)

Figure 2

3

Black Full Screen Black Figure 3

4

Red Full Screen 50% Red Figure 4

5

Green Full Screen 50% Green Figure 5

6

Blue Full Screen 50% Blue Figure6

7

White Full Screen White Figure7

8

Black_Tile Black Tile Under White Background Figure 8

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Figure 1 Figure 2

Figure 3 Figure 4

Figure 5 Figure 6

Figure 7 Figure 8

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BIOS update procedure

Mstar ISP Tool User Manual

Setp1:

Take the cable of Print Port to connect Print Port of PC and Print Port of fixture(and EDID burn in the same fixture) to connect VGA Cable between D-sub of fixture and D-sub of AD Board of monitor，the monitor must be turned on the power。

Step 2 :

Open ISP Tool

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ViewSonic Corporation

Step 3 :

Press ”connect” into ISP mode，display the model of Flash，The dialog of figure is displayed “Device Type is Pm25LV512” then press ”確定”。

Step 4:

Press ”Read” then enter as below figure，then press

to down load the program of BIOS (*.bin)。

If down load BIOS that is successful as below figure then press”確定”。

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ViewSonic Corporation

Step 5 :

Press ”Auto” into below figure that display the value of BIOS Checksum below figure is displayed “0x1626” then press ”Run” to execute the BIOS procedure。

The BIOS procedure is displayed the message ”Verify OK” that the BIOS procedure is successful。

Step 6 :

Press ”Dis Con” then leave the mode of ISP。

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ViewSonic Corporation

Step 7 ：

When select ”ReConnect” and press “Run” then repeat to connect the mode of ISP into next the action of BIOS procedure

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ViewSonic Corporation

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 seal the bag with tape. (Figure 2)

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

1.4 Place the monitor into the carton and then put all the accessories into the carton. As last, close the carton and seal it with

tape. (Figure 4)

Figure 1

Figure 2

Figure 3

Figure 4

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Monitor Assembly and Disassembly 1 Separate Stand Assy

1.1 Remove Stand Cover

Step 2 :

Remove the Stand Cover.

Step 5 :

Completed.

Step 3 :

Loose and remove 4 screws

Step 1 :

Remove the Seat Assy

Step4 :

Remove the Stand Assy

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2 Separate Rear Cover (Rear Case Assy) Separate Bezel hooks to take Bezel and Rear Cover apart.

Step 1 :

Loose and remove 2 screws.

Step 2 :

Separate Bezel hooks to take Bezel and Rear Cover apart.

Step 3 :

Remove Rear Cover.

Step 4 :

Completed.

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3 Remove Power Board and AD Board

3.1 Remove Metal Cover

Step 1 :

Remove FFC from OSD Board.

Step 2 :

Loose and remove 4 screws.

Step 4 : Remove 2 pieces of Backlight wires.

Step 3 : Lift up LCD module and remove bezel.

Step 5 : Remove 2 pieces of Backlight wires.

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Step 6 : Loose and remove 2 screws.

Step 7 : Loose and remove 2 screws.

Step 8 : Loose and remove 4 screws.

Step 9 : Remove the PCBA Cover

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3.2 Remove Power Board and AD Board

Step 1 : Loose and remove 4 screws.

Step 2 : Remove Lips Board

Step 3 : Remove 2 pieces of FFCs.

Step 4 : Remove the FFC.

Step 5 : Loose and remove 4 screws.

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4 Change New AD Board and Power Board

Step 1 :

Place new AD Board. And fasten 4 fixed screws.

Step 3 :

Insert FFC.

Step7 :

Completed.

Step 4 :

Insert 2 pieces of FFCs .

Step 6 : Remove AD PCBA.

Step 2 :

Fasten 4 fixed screws.

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Step 5 : Insert new Lips Board.

Step 6 :

Fasten 4 fixed screws.

Step 7 :Completed.

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5. Remove OSD Board

Step 1 :

Separate both Audio Cable.

Step 2 :

Take OSD Board apart.

Step 3:

Completed.

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6.Change New OSD Board

7. Add Cover to AD PCB Heatsink

Step 1 :

Place New OSD Board.

Step 2 :

Insert Audio cable to connectors of New OSD Board.

Step 1 :

Join the PCB Cover.

Step 2 :

Fasten 4 fixed screws.

Step 3:

Completed.

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Step 3 :

Fasten 2 fixed screws

Step 4 :

Fasten 2 fixed screws.

Step 5 :

Insert 2 pieces of Backlight wires.

Step 6 :

Insert 2 pieces of Backlight. wires.

Step 7 : Join LCD module and remove bezel.

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8. Rear Assy & Stand Assembly

Step 10 :

Completed.

Step 1 :

Place Rear Cover.

Step 2 :

Fasten 2 fixed screws.

Step 3 :

Place the Stand Assy.

Step 8 :

Fasten 4 fixed screws.

Step 9 :

Insert FFC.

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Step 5 :

Join the Stand Cover.

Step 6 :

Join the Seat Assy

Step 7 :

Completed.

Step 4 :

Fasten 4 fixed screws.

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6. Troubleshooting Flow Chart

Defect Mode Failure Analysis Repair Testing

Flash Dots

Bright Dot

Dark Dot

Backlight

Light Leakage

Mura

Image Sticking

Brightness spot

Particle

Dot Defect

Check Panel

Light On Test

Next Ste

p

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

Abnormal

Display

TEST

NG

A

Completed

Image Remain

Group Bright Dots

Others Cosmetics Defect

Panel Change

Defect Mode Failure Analysis Repair Testing

Check PCBA

Power on

Display

Abnormal

Flicker

Next Step

TEST

NG

A

Completed

AD/B Change

CNT/B Change

Inverter/B Change

Power/B Change

Check Panel

Display Noise

Beat Display

Shut Down

Beat Display

Flicker

No Backlight

Display Wave

B

Panel Change

Adapter Change

Check Adapter

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

Check PCBA

AD/B Change

Power/B Change

CNT/B Change

Check Panel

Panel Change

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Failure Analysis Repair Testing

Gray Scale

Display

Abnormal

R.G.B

Display

Abnormal

No signal

Display White

Out

Brightness

Even

Abnormal

Next Ste

p

TEST

NG

Completed

B

Booting Delay

C

Beat Display

No Backlight

Check PCB

A

AD/B Change

Inverter/B Change

Power/B Change

Check Panel

Check PCB

A

Panel Change

Power/B Change

Inverter/B Change

CNT/B Change

AD/B Change

Check PCB

A

VGA cable

DVI cable

Check Wire

Check Panel

Panel Change

OSD/B Change

Check PCB

A

Adapter Change

Check Adapter

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

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Defect Mode Failure Analysis Repair Testing

Horizontal

Line Defect

Vertical

Weak Line

Peculiar Smell

Check PCBA

Check Panel

Horizontal

Weak Line

Next Step

TEST

NG

AD/B Change

Panel Change

Horizontal

Band Defect

C

Vertical

Band Defect

Power Saving

Display

Abnormal

Check PCBA

AD/B Change

Inverter/B Change

Power/B Change

Check PCBA

AD/B Change

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

Complete

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Defect Mode Failure Analysis Repair Testing

LED Off

No Power

LED Dark

LED Abnormal

LED Flicke

r

Power ON/OFF

Abnormal

LED Display

Abnormal

Check PCBA

Check Wire

AD/B Change

CNT/B Change

OSD Cable

Inverter/B

Power/B Change

OSD/B Change

AC Power Change

DC Power CNT

Cable Chan

g

e

Adapter Change

Check Adapter

Check PCBA

Check Wire

OSD Cable

Inverter/B

Power/B Change

OSD/B Change

DC Power CNT

Cable Chan

g

e

Adapter Change

AD/B Change

LED Loss

Turn Off

Abnormal

Check PCBA

Check Wire

Next Ste

p

TEST

NG

Completed

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

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Defect Mode Failure Analysis Repair Testing

Abnormal BIOS

&OSD

Check PCB

Check Wire

AD/B Change

CNT/B Change

OSD cable

OSD No

Display

OSD Key

Unavailable

OSD Can’t

Input

OSD Can’t

Read

OSD Jiggle

OSD Display

Abnormal

Check BIOS

Inverter/B

Power/B Change

OSD/B Change

D-sub cable

VGA cable

DVI cable

BIOS Update

Abnormal

Louds

peaker

Check PCBA

Check Wire

AD/B Change

CNT/B Change

No Voice

Voice Loss

Abnormal

Loud

L/R

Abnormal

L/R Same

Volume

Check Loudspeaker

Inverter/B Change

Power/B Change

OSD/B Change

OSD Cable Change

Loudspeaker

Change

Loudspeaker

Noise

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

Completed

Next Step

TEST

NG

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Defect Mode Failure Analysis Repair Testing

Display Shut

Down

Check PCB

A

Check Panel

Display Flicker

((tapping )

Check PCBA

Check Panel

AD/B Change

Power/B Change

Panel Change

CNT/B Change

Other Abnormal

Display

Next Ste

p

TEST

NG

Complete

TV Function

Display

Abnormal

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

Panel Change

Check PCBA

Check Wire

TV /B Change

AV Cable Change

Remote controller

Change

Check Controller

DVI Signal

Display

Abnormal

Check PCB

AD/B Change

EDID Update

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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.

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ViewSonic Corporation

7. Recommended Spare Parts List

Rev: 1b

Ite

m

ECR/ECN ViewSonic P/N Ref. P/N Location Universal number#Q't

y

1

Accessories:

Power Code, UL, SVT#18/3C, 75C, LP-30B+LS-13, L=1830+/50mm, Black, Linetek, 18AWG, No Ba

g

, Green I

A-00000458

32E1818015

(

AJ0A2T3A25

)

1

2

PCBA for , A190A2-A02-T, A190A2-A02-H-S1, 1206-04, Rev.04, ODM, Green II

B-00005599 35-D005694 1

3

PCBA for , A190A2-H, A190A2-H-K3, 106-02, Rev.02, USI/ITC, ODM, Green II

B-00005600 35-D005166 1

4

Lips With Audio, DAC-12M030 A, Ver:0F, 5 V/3 A, 12 V/0.7 A,

I

TYPE, 7 mA, 1710 V, Delta Dongguan_Inverter/Delta Jian

gsu_

Adaptor, RoHS

B-00006040 27-D003247 1

5

Bezel Assy, A190A2-H05, ABS PA757N, Silver(Pantone877C), Fukin

g

C-00004281 40-D004255 1

6 Rear Assy, A190A2-H05, ABS PA757N, Black(J91A11B5), Fuking C-00004282 40-D004257 1

7

Cover Hinge, A190A2-H05, ABS PA757N, Black(J91A11B5), Fukin

g

C-00004284 40-D004250 1

8

Seat Assy, A190A2-H05, ABS PA757N, Black(J91A11B5), Hontech Precisio

n

C-00004285 40-D004259 1

9 Audio Cable, A150X2, 18AWG, 180cm, Black, JCE, Green I CB-00000544 32F2818004 1

10

Accessory Cable, D-Sub, BLACK, Johnson Components & E

quip

ments, A150X2, Green

I

CB-00004287 32F3018003 1

11 FFC, A190A2-H05, 15 Pins, Tennsure/Young Shin, L=108.5 CB-00004288 32-D004533 1 12 FFC, FFCX816, 36 Pins, Tennsure, package AL_Foil, Green I

I

CB-00005742 32-D005773 1

13 Label, Pallet Barcode Label, 75x40, A190E2-H03, VSC, Non Green DC-00000586 7741999141 1

14

Safety Label for , A190A2-H05, 120 mmx50 mm, Chang Huang, VSC

_

VA1912w-2, Green I

I

DC-00005602 77-D008324 1

15

Carton Label for , A190A2-H05, 76.2 mmx76.2 mm, Chang Huang, VSC

_

VA1912w-2, Green I

I

DC-00005604 77-D008326 1

16

MENU for A190E2-H05, Complex, 1C, Yi Ching, VSC_VA1912w2+Caution Card, Green I

I

DC-00005606

76-D008373

(

AJ0A2T3A25

)

1

17

SCREW, M3, P=0.5 mm, L=4 mm, Pan Head, Phillips Cross Recess, Green I

HW-00000554 42A9930008 2000

18 Screw, M3*P1.27*12, φ5.5*2, Steel, Green

I

HW-00000556 42A9990005 2000

19

SCREW, M4, P=0.7 mm, L=15 mm, Pan Head, Phillips Cross Recess, Green I

HW-00000590 42A9930013 2000

20

SCREW, M4, P=0.7 mm, L=8 mm, Round Head, Phillips Cros

s

Recess, plate color Zn, Screw_with_Washer, Shye Ching/Hama Naka Moto

g

awa, head D8, Green I

HW-00004042 42-D000649 2000

21

SCREW, M4, P=0 mm, L=11.8 mm, Hexagon Stand Off, Socket, Green I

HW-00006042 42A9940007 2000

22

Miscellaneous:

Tape, Security Tape, OPP, L900xW50x0.045mm, VSC, Non Green M-00000560 7345511002 1

23 Bag, 570 mmx600 mmx0.13 mm, White, Non Gree

n

P-00000595 7841919921 1

24

Cushion, A190A2-T05, EPS, WHITE, 450 mmx160 mmx145 mm, Sin

g

Home, PS FOAM (Left), Green I

I

P-00004295 78-D004392 1

25

Cushion, A190A2-T05, EPS, WHITE, 450 mmx160 mmx145 mm, Sin

g

Home, PS FOAM (Right), Green I

I

P-00004296 78-D004388 1

26

Carton, A190A2-H05, 538 mmx158 mmx470 mm, Chen Ti Paper, VSC

_

VA1912w-2, Green I

I

P-00005607 78-D008325 1

Remark 1:

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

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

Cabinets:

Cables:

Documentation:

Hardware:

Packing Material:

RECOMMENDED SPARE PARTS LIST (VA1912W-2)

Description

Serial No. Prefix: Q90

PC Board Assembly:

ViewSonic Model Number: VS10866

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ViewSonic Model Number: VS10866 Serial No. Prefix: QBM Rev: 1a

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

1

Accessories:

Power Cord 0.75mm2, 3C, A-00002058 32E1818013 1 2 Audio Board (Rev.02) B-00005600 35-D005166 1 3 Power Supply Board, Ver:0F B-00006039 27-D003247 1 4 Main Board - A190A2-A02-T, A190A2-A02-T-S1,Rev.04 B-00006727 35-D008185 1 5 Front Panel, Bezel Assy C-00004276 40-D004254 1 6 Back Cover C-00004277 40-D004253 1 7 Cover Hinge C-00004279 40-D004258 1 8 Base Assembly C-00004280 40-D004256 1 9 Audio Cable, A150X2, 18AWG, 180cm, Black CB-00000544 32F2818004 1

10 Accessory Cable, D-Sub CB-00004287 32F3018003 1 11 Flat Cable, (FFC, A190A2-H05) CB-00004288 32-D004533 1 12 Flat Cable FFCX816,36 CB-00005742 32-D005773 1 13 Safety Label 120 mmx50 mm Ver.3 DC-00008016 77-D012194 1 14 Carton Label 76.2 mmx76.2 mm DC-00008020 77-D011732 1 15 SN Label 50 mmx25 mm DC-00008021 77-D011737 1 16 User's Guide MENU Complex, 1C DC-00008022 76-D011747 1 17 SCREW, M3, P=0.5 mm, L=4 mm HW-00000553 42A9930008 2000 18 Screw, M3*P1.27*12, φ5.5*2, Steel HW-00000556 42A9990005 2000 19 SCREW, M4, P=0.7 mm, L=15 mm HW-00000590 42A9930013 2000 20 SCREW, M4, P=0.7 mm, L=8 mm HW-00004042 42-D000649 2000 21 SCREW, M4, P=0 mm, L=11.8 mm HW-00006041 42A9940007 2000 22

Miscellaneous:

Tape, Security Tape, OPP, L900xW50x0.045mm M-00000560 7345511002 1

23 PE Bag, 570 mmx600 mmx0.13 mm P-00000595 7841919921 1 24 FOAM (Left) P-00004295 78-D004392 1 25 FOAM (Right) P-00004296 78-D004388 1 26 Generic Foam Set P-00001347 30833 27 Generic Box P-00002515 20653 28 Craft Box 538 mmx158 mmx470 mm P-00008015 78-D011688 1

Remark 1: Remark 2:

Documentation:

Hardware:

Packing Material:

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.

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

RECOMMENDED SPARE PARTS LIST (VA1912WB-2)

PC Board Assembly:

Cabinets:

Cables:

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ViewSonic Corporation

ViewSonic Model Number: VS10866 Rev: 1b

Serial No. Prefix: Q90

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

1 E-00005747 MJ0A10AK01 19" Wide Semi Product,A190A2,1440X900,TN 1 2 N/A 36X8636401 Driver IC,Scan,HX8636APD400(TSMC),300Channel,,RoHS,Green I 3 3 N/A L3J009XXXX 19" wide PS TN Asahi 0.7mm glass Cr BM(Panel Base) 1

4 N/A 74-D002212

Polarizer,TFT,Degree 135,414 mmx259.7 mmx0.215 mm,NWF-LESEG,M190A1,Green I

1

5 N/A 74-D002213

Polarizer,CF,Degree 135,415.84 mmx262.15 mmx0.215 mm,NWFLESEGAGS1,M190A1,Green I

1

6 N/A 73-C000047 ACF,COG,AC-8405Z-23 1.5mmX100M,100000 mmx1.5 mm,COG-ACF,Green I 0.00168 7 N/A 7344191017 ACF,AC-4251FY-16,100M/RL,Green I 0.0044

8 N/A 36-D002378

Driver IC,COF,Data,M190A1-L01,HX8018-A050CBAK,Reel,6 bit,432Channel,RoHS,Green I

10

9 N/A 73-D002676 ACF,PCB,AC-9825R-35,100000 mmx1.5 mm,PCB-ACF,Green I 0.0044

10 N/A 35-D004361 PCBA for ,A190A2-H,A190A2-A02-H-X,1206-01,Rev.01,Green I 1 11 N/A 7349951002 Silicone,TORAY/-9187L,330g 0.4 12 HW-00000533 42A9930008 SCREW,M3,P=0.5 mm,L=4 mm,Pan Head,Phillips Cross Recess,Green I 16 13 HW-00006041 42A9940007 SCREW,M4,P=0 mm,L=11.8 mm,Hexagon Stand Off,Socket,Green I 2 14 N/A 41-D000643 Metal Frame Front,M190A1-L01/A190A2/M190A1-L03,SECC 0.6t,19"wide 1

15 HW-00004042 42-D000649

SCREW,M4,P=0.7 mm,L=8 mm,Round Head,Phillips Cross Recess,plate color Zn,Screw_with_Washer,head D8,Green I

1

16 N/A 73-D002886

Conductive Tape,PET+Adhesive,409 mmx58.55 mmx0.05 mm,Mylar_Cover_PcbaX_a190a2,Green I

1

17 B-00006039 27-D003247

Lips With Audio,DAC-12M030 A,Ver:0F,5 V/3 A,12 V/0.7 A,I TYPE,7 mA,1710 V,RoHS

1

18 N/A 44-D003584 Backlight Unit,A190A2,Green I 1 19 C-00005686 41-D003772 Cover AD Assy,A190A2,SECC,without Dvi-D Hole,Green II 1 20 B-00005599 35-D005694 PCBA for ,A190A2-A02-T,A190A2-A02-H-S1,1206-04,Rev.04,ODM,Green II 1 21 CB-00005742 32-D005773 FFC,FFCX816,36 Pins,package AL_Foil,Green II 2 22 CB-00000544 32F2818004 Audio Cable,A150X2,18AWG,180cm,Black,JCE,Green I 1 23 CB-00004287 32F3018003 Accessory Cable,D-Sub,BLACK,A150X2,Green I 1

24 A-00002058 32E1818013

Power Cord,CCC,300/500V,0.75mm2,3C,PC-323+COC-01,L=1830+/50mm,Black,Linetek,18AWG,No Bag,Green I

1

25 HW-00000590 42A9930013 SCREW,M4,P=0.7 mm,L=15 mm,Pan Head,Green I 4 26 HW-00000555 42A9930014 Screw,M3*P0.5*6,Green I 4 27 HW-00000556 42A9990005 Screw,M3*P1.27*12,φ5.5*2,Steel,Green I 2 28 C-00004284 40-D004250 Cover Hinge,A190A2-H05,ABS PA757N,Black(J91A11B5) 1 29 C-00004282 40-D004257 Rear Assy,A190A2-H05,ABS PA757N,Black(J91A11B5) 1 30 C-00004281 40-D004255 Bezel Assy,A190A2-H05,ABS PA757N,Silver(Pantone877C) 1 31 CB-00004288 32-D004533 FFC,A190A2-H05,15 Pins,L=108.5 1 32 B-00005600 35-D005166 PCBA for ,A190A2-H,A190A2-H-K3,106-02,Rev.02,ODM,Green II 1 33 C-00004283 40-D004252 Stand Assy,A190A2-H05,ABS PA757N,Black(J91A11B5) 1 34 PL-00006048 73-D005900 Panel Protector Film,A190A2-H05,XG-536 T=0.1,With_Print,Green II 1 35 DC-00005602 77-D008324 Safety Label for ,A190A2-H05,120 mmx50 mm,VSC_VA1912w-2,Green II 1 36 N/A 77-D008330 SN Label for ,A190A2-H05,50 mmx25 mm,VSC_VA1912w-2 for China,Green II 1 37 HW-00002076 7841595111 Corner Protector,paper,50 mmx50 mmx1850 mm,Green I 1 38 N/A 7841595191

Separator,紙板(AA),1120*820*11mm,A150X2-T01,Non Green

0.025

39 P-00000595 7841919921 Bag,570 mmx600 mmx0.13 mm,White,Non Green 1 40 DC-00000586 7741999141 Label,Pallet Barcode Label,75x40,A190E2-H03,VSC,Non Green 0.021 41 M-00000560 7345511002 Tape,Security Tape,OPP,L900xW50x0.045mm,VSC,Non Green

0.3

42 N/A 77-D000114 Customer Label,A170E1-H0G,180 mm,100 mm,Green I 1 43 N/A 77-D000118 Customer Label,A170E1-H0G,130 mm,80 mm,Green I 1 44 N/A 78-D000275 Warranty Card,A170E1-H0G,143 mmx210 mm,VSC_VA712,Green I 1 45 DC-00005603 77-D000576 Carton Label for ,A190E2-H06,20 mmx20 mm,VSC_VA912_for Europe,Green I 1

46 N/A 77-D001323

Customer Label for ,A170E1-H0G,15 mmx15 mm,QC Pass Label_VSC_for China,Green I

1

47 N/A 78-D001492 Pallet,A150X2-T01,Wooden,1150 mmx840 mmx138 mm,Green I 0.02 48 C-00004285 40-D004259 Seat Assy,A190A2-H05,ABS PA757N,Black(J91A11B5) 1

49 P-00004295 78-D004392

Cushion,A190A2-T05,EPS,WHITE,450 mmx160 mmx145 mm,PS FOAM (Left),Green II

1

50 P-00004296 78-D004388

Cushion,A190A2-T05,EPS,WHITE,450 mmx160 mmx145 mm,PS FOAM (Right),Green II

1

51 N/A 79-D004425 Shipping Package Information for ,A190A2-H05,ViewSonic 1 52 DC-00005604 77-D008326 Carton Label for ,A190A2-H05,76.2 mmx76.2 mm,VSC_VA1912w-2,Green II 1 53 P-00005607 78-D008325 Carton,A190A2-H05,538 mmx158 mmx470 mm,VSC_VA1912w-2,Green II 1 54 DC-00005605 76-D008375 MENU for A190E2-H05,Complex,1C,VSC_VA1912w-2,CD-ROM,Green II 1

BOM LIST (VA1912W-2)

47

Confidential - Do Not Copy VA1912w-2_VA1912wb-2

ViewSonic Corporation

ViewSonic Model Number: VS10866 Rev: 1a

Serial No. Prefix: QBM

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

1 E-00005747 MJ0A10AK01 19" Wide Semi Product, A190A2, 1440X900, TN 1

2 N/A 36X8636401

Driver IC, Scan, HX8636APD400(TSMC), 300Channel, , RoHS, Green I

3

3 N/A L3J009XXXX 19" wide PS TN Asahi 0.7mm glass Cr BM(Panel Base) 1

4 N/A 74-D002212

Polarizer, TFT, Degree 135, 414 mmx259.7 mmx0.215 mm, NWF-LESEG, M190A1, Green I

1

5 N/A 74-D002213

Polarizer, CF, Degree 135, 415.84 mmx262.15 mmx0.215 mm, NWF-LESEGAGS1, M190A1, Green I

1

6 N/A 73-C000047

ACF, COG, AC-8405Z-23 1.5mmX100M, 100000 mmx1.5 mm, COG-ACF, Green I

0.00168

7 N/A 7344191017 ACF, AC-4251FY-16, 100M/RL, Green I 0.0044

8 N/A 36-D002378

Driver IC, COF, Data, M190A1-L01, HX8018A050CBAK, Reel, 6 bit, 432Channel, RoHS, Green I

10

9 N/A 73-D002676

ACF, PCB, AC-9825R-35, 100000 mmx1.5 mm, Hitachi Chemical(日立化成), PCB-ACF, Green I

0.0044

10 N/A 35-D004361

PCBA for , A190A2-H, A190A2-A02-H-X, 1206-01, Rev.01, Green I

1

11 N/A 7349951002 Silicone, TORAY/-9187L, 330g 0.4

12 N/A PJ0AFT0Q04

Olympic, 19"W, Function BOM, D-sub+Audio, Morning Star, TSUM17AK

1

13 HW-00000553 42A9930008

SCREW, M3, P=0.5 mm, L=4 mm, Pan Head, Phillips Cross Recess, Green I

16

14 HW-00006041 42A9940007

SCREW, M4, P=0 mm, L=11.8 mm, Hexagon Stand Off, Socket, Green I

2

15 N/A 41-D000643

Metal Frame Front, M190A1-L01/A190A2/M190A1L03, SECC 0.6t, 19"wide

1

16 HW-00004042 42-D000649

SCREW, M4, P=0.7 mm, L=8 mm, Round Head, Phillips Cross Recess, plate color Zn, Screw_with_Washer, head D8, Green I

1

17 N/A 73-D002886

Conductive Tape, PET+Adhesive, 409 mmx58.55 mmx0.05 mm, Mylar_Cover_PcbaX_a190a2, Green I

1

18 B-00006039 27-D003247

Lips With Audio, DAC-12M030 A, Ver:0F, 5 V/3 A, 12 V/0.7 A, I TYPE, 7 mA, 1710 V, RoHS

1

19 N/A 44-D003584 Backlight Unit, A190A2, Green I 1

20 C-00005686 41-D003772

Cover AD Assy, A190A2, SECC, without Dvi-D Hole, Green II

1

21 B-00006727 35-D008185

PCBA for , A190A2-A02-T, A190A2-A02-T-S1, 120805, Rev.04, Green II

1

22 CB-00005742 32-D005773 FFC, FFCX816, 36 Pins, package AL_Foil, Green II 2

23 N/A

PJ0EACS000

Olympic, 19", Accessory BOM, D-sub+Audio, China 3 pin, Black, Power built-in;RoHS

1

24 CB-00000544 32F2818004

Audio Cable, A150X2, 18AWG, 180cm, Black, JCE, Green I

1

25 CB-00004287 32F3018003 Accessory Cable, D-Sub, BLACK, A150X2, Green I 1

26 A-00002058 32E1818013

Power Cord, CCC, 300/500V, 0.75mm2, 3C, PC323+COC-01, L=1830+/-50mm, Black, Linetek, 18AWG, No Bag, Green I

1

27 N/A PJ0AI15100

Olympic, 19"W, ID BOM, D-sub+Audio, China, Black, VSC, VA1912wb-2

1

28 HW-00000590 42A9930013 SCREW, M4, P=0.7 mm, L=15 mm, Pan Head, Green I 4 29 HW-00000555 42A9930014 Screw, M3*P0.5*6, Green I

4

30 HW-00000556 42A9990005 Screw, M3*P1.27*12, φ5.5*2, Steel, Green I 2 31 C-00004279 40-D004258 Cover Hinge, A190A2-H05, ABS PA757N, Green I 1 32 C-00004277 40-D004253 Rear Assy, A190A2-H05, ABS PA757N, Green I 1 33 C-00004276 40-D004254 Bezel Assy, A190A2-H05, ABS PA757N, Green I 1 34 CB-00004288 32-D004533 FFC, A190A2-H05, 15 Pins, L=108.5 1

35 B-00005600 35-D005166

PCBA for , A190A2-H, A190A2-H-K3, 106-02, Rev.02, ODM, Green II

1

36 C-00004278 40-D004251 Stand Assy, A190A2-H05, ABS PA757N, Green I 1

37 PL-00006048 73-D005900

Panel Protector Film, A190A2-H05, XG-536 T=0.1, With_Print, Green II

1

38 DC-00008016 77-D012194

Safety Label for , A190A2-H05, 120 mmx50 mm, VA1912wb Ver.3, Green II

1

39 DC-00008021 77-D011737

SN Label for , A190A2-H05, 50 mmx25 mm, _VA1912wb-2 for Analog for China, Green II

1

40 HW-00002076 7841595111

Corner Protector, paper, 50 mmx50 mmx1850 mm, Green I

1

41 N/A 7841595191

Separator, 紙板(AA), 1120*820*11mm, A150X2-T01, Non Green

0.025

42 P-00000595 7841919921 Bag, 570 mmx600 mmx0.13 mm, White, Non Green 1

BOM LIST (VA1912WB-2)

48

Confidential - Do Not Copy VA1912w-2_VA1912wb-2

ViewSonic Corporation

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

43 DC-00000586 7741999141

Label, Pallet Barcode Label, 75x40, A190E2-H03, VSC, Non Green

0.021

44 M-00000560 7345511002

Tape, Security Tape, OPP, L900xW50x0.045mm, VSC, Non Green

0.3

45 N/A 77-D000114

Customer Label, A170E1-H0G, 180 mm, 100 mm, Green I

1

46 N/A 77-D000118 Customer Label, A170E1-H0G, 130 mm, 80 mm, Green I

1

47 N/A 78-D010933

Warranty Card, A170E1-H0G, 143 mmx210 mm, VA712 Ver.2, Green II

1

48 DC-00008020 77-D011732

Carton Label for , A190A2-H05, 76.2 mmx76.2 mm, VA1912wb-2 for Analog, Green II

1

49 N/A 77-D000114

Customer Label for , A170E1-H0G, , Green IVA712 Ver.2, Green II

1

50 N/A 78-D001492

Pallet, A150X2-T01, Wooden, 1150 mmx840 mmx138 mm, Green I

0.02

51 C-00004280 40-D004256 Seat Assy, A190A2-H05, ABS PA757N, Green I 1

52 P-00004295 78-D004392

Cushion, A190A2-T05, EPS, WHITE, 450 mmx160 mmx145 mm, PS FOAM (Left), Green II

1

53 P-00004296 78-D004388

Cushion, A190A2-T05, EPS, WHITE, 450 mmx160 mmx145 mm, PS FOAM (Right), Green II

1

54 N/A 79-D004425

Shipping Package Information for , A190A2-H05, ViewSonic

1

55 P-00008015 78-D011688

Carton, A190A2-H05, 538 mmx158 mmx470 mm, VA1912wb-2 for Analog, Green II

1

56 DC-00008022 76-D011747

MENU for A190A2-H05, Complex, 1C, VA1912wb-2, Green II

1

49

Confidential - Do Not Copy VA1912w-2_VA1912wb-2

ViewSonic Corporation

Model

Title

Date Rev:

ViewSonic Corporation

8. Exploded Diagram and Exploded Parts List

ViewSonic Corporation

ViewSonic Model Number: VS10866 Rev: 1b

Serial No. Prefix: Q90

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

1 N/A 44-D003584

BACKLIGHT UNIT

1

2 N/A L3J009XXXX

PANEL ASSY

1

3 N/A

41-D000643 BACKLIGHT FRONT COVER

1

4 HW-00000533 42A9930008

SCREW M3*4L

2

5 B-00006039

27-D003247 POWER PCB ASSY

1

6 B-00005599

35-D005694 AD PCB ASSY

1

7 HW-00000533

42A9930008 SCREW M3*4L

7

8 C-00005686

41-D003772 AD COVER

1

9 C-00004281

40-D004255 BEZEL ASSY

1

10 C-00004282 40-D004257

REAR ASSY

1

11 N/A 42A9230001

SCREW D3*8L

4

12 C-00004283 40-D004252

STAND ASSY

1

13 C-00004284 40-D004250

COVER HINGE

1

14 C-00004285

40-D004259 SEAT ASSY

1

EXPLODED PARTS LIST (VA1912W-2)

EXPLODED PARTS LIST (VA1912WB-2)

ViewSonic Model Number: VS10866 Rev: 1a

Serial No. Prefix: QBM

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

1 N/A 44-D003584 BACKLIGHT UNIT 1 2 N/A L3J009XXXX PANEL ASSY 1 3 N/A 41-D000643 BACKLIGHT FRONT COVER 1 4 HW-00000553 42A9930008 SCREW M3*4L 2 5 B-00006039 27-D003247 POWER PCB ASSY 1 6 B-00005599 35-D005694 AD PCB ASSY 1 7 HW-00000553 42A9930008 SCREW M3*4L 7 8 C-00005686 41-D003772 AD COVER 1

9 C-00004281 40-D004255 BEZEL ASSY 1 10 C-00004282 40-D004257 REAR ASSY 1 11 N/A 42A9230001 SCREW D3*8L 4 12 C-00004283 40-D004252 STAND ASSY 1 13 C-00004284 40-D004250 COVER HINGE 1 14 C-00004285 40-D004259 SEAT ASSY 1

50

Confidential - Do Not Copy VA1912w-2_VA1912wb-2

ViewSonic Corporation

ViewSonic Model Number: VS10866 Rev: 1b

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

1 N/A

VA1912W-2

LCD Monitior 1

2 P-00000595

7841919921

PE Foam Bag 1

3 P-00004295

78-D004392

PS Foam (Left) 1

4 P-00004296

78-D004388

PS Foam(Right) 1

5 N/A

Different region

(refer to BOM)

Carton 1

6 N/A

Different region

(refer to BOM)

Power Cord 1

7 N/A

Different region

(refer to BOM)

Power Cord 1

8 CB-00004287

32F3018003

Monitor Cable 1

9 CB-00000544

32F2818004

Audio Cable 1

10 N/A

N/A

DVI Cable (N/A) 1

11 N/A

Different region

(refer to BOM)

Menu (Quick Setup) 1

12 N/A

Different region (refer to BOM )

Menu (CD-ROM) 1

13 N/A

Different region

(refer to BOM)

Warranty Registration card 1

14 C-00004285

40-D004259

Seat 1

15 N/A

Different region

(refer to BOM)

Customer Label 1

PACKING PART LIST ( VA1912W-2 )

ViewSonic Model Number: VS10866 Rev: 1a

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

1 N/A

VA1912W-2

LCD Monitior 1

2 P-00000595

7841919921

PE Foam Bag 1

3 P-00004295

78-D004392

PS Foam (Left) 1

4 P-00004296

78-D004388

PS Foam(Right) 1

5 N/A

Different region

(refer to BOM)

Carton 1

6 N/A

Different region

(refer to BOM)

Power Cord 1

7 N/A

Different region

(refer to BOM)

Power Cord 1

8 CB-00004287

32F3018003

Monitor Cable 1

9 CB-00000544

32F2818004

Audio Cable 1

10 N/A

N/A

DVI Cable (N/A) 1

11 N/A

Different region

(refer to BOM)

Menu (Quick Setup) 1

12 N/A

Different region

(refer to BOM )

Menu (CD-ROM) 1

13 N/A

Different region

(refer to BOM)

Warranty Registration card 1

14 C-00004285

40-D004259

Seat 1

15 N/A

Different region

(refer to BOM)

Customer Label 1

PACKING PART LIST ( VA1912WB-2 )

51

Confidential - Do Not Copy VA1912w-2_VA1912wb-2

ViewSonic Corporation

9. Block Diagram

OSD Key Pad / Audio Out

D-sub

Analog Video

Speaker

AC Power

LDO

Main Board

LIPS

Backlight

LCD Module

DC-5V

5V

Signal

Audio In

DC-12V

12V

3.3V

52

Confidential - Do Not Copy VA1912w-2_VA1912wb-2

V18C

RIGHT

CLK+

AUTO

CLK-

PANEL_ON/OFF

V33C

INV_ON/OFF

V5A_ESD

INV_ON/OFF

BSTH

STB POL

CPV STV OE

GVOFF

BG2N BG2P BG1N BG1P BG0N BG0P

BB2N BB2P BB1N BB1P BB0N BB0P

FR2N FR2P

BR2N

FR1N

BR2P

FR1P

BR1N

FR0N

BR1P

FR0P

FG2N

BR0N

FG2P

BR0P

FG1N FG1P FG0N FG0P

FB2N FB2P FB1N FB1P FB0N FB0P

FCKN FCKP FSTH

BCKN BCKP

INV_ADJ

VOL_ADJ

AUDIO_ON

AUDIOL+

AUDIOL-

AUDIOR+

V5A

LED_GL

POWER

LEFT

TURBO

LED_OR

MENU

AUDIOR-

V12A

DCDC_ON/OFF

V12A

V5A

PANEL_ON/OFF

VCM_PWM

V33P V33P

AUD_DET

INV_ADJ

B-

B+

G-

G+

R-

R+

DDCD_DAT

DDCD_CLK

VSYNC

HSYNC

GNDB

BIN

GNDG

GIN

GNDR

RIN

DDCA_DAT DDCA_CLK

VCM_PWM

VOL_ADJ

AUD_DET

SOG

VGA_5V

DVI_5V

DSUB_DET

V12A

Vref

B8

PANEL_INTERFACE

STB POL

GVOFF

STV OE

CPV

V33P

V12A

V5A

BR2N BR2P BR1N BR1P BR0N BR0P

BG2N BG2P BG1N BG1P BG0N BG0P

BB2N BB2P BB1N BB1P

BB0P

BB0N

FR2N FR2P FR1N FR1P FR0N FR0P

FG2N FG2P FG1N FG1P FG0N FG0P

FB2N FB2P FB1N FB1P FB0N FB0P

FCKN FCKP FSTH

BCKN BCKP BSTH

VCM_PWM

DCDC_ON/OFF

PANEL_ON/OFF

INVERTER I/F

B2

V12A

INV_ADJ

INV_ON/OFF

V33C

V5A

VOL_ADJ

AUDIO_ON

AUDIOR-

AUDIOR+

AUDIOL-

AUDIOL+

AUD_DET

LED_GL

B3

VGA

RIN

GIN

BIN

VSYNC

GNDR

GNDG

GNDB

DDCA_DAT DDCA_CLK

HSYNC

V5A

V5A_ESD

SOG

VGA_5V

DSUB_DET

B6

SCALER

R-

BR1N

RIN GNDR GIN GNDG BIN GNDB HSYNC VSYNC

G+

R+

GB+ BCLK+ CLK-

INV_ADJ

VOL_ADJ

V18C V33C

BR2P

BR1P BR0N BR0P

BG2N BG2P BG1N BG1P BG0N BG0P

BB2N BB2P BB1N BB1P BB0N BB0P

FR2N FR2P

BR2N

LED_OR LED_GL TURBO MENU LEFT RIGHT AUTO POWER

DDCD_DAT

DDCD_CLK

DDCA_DAT DDCA_CLK

BSTH

AUDIO_ON INV_ON/OFF DCDC_ON/OFF PANEL_ON/OFF VCM_PWM

AUD_DET

STB

V5A

FR1N FR1P FR0N FR0P

FG2N FG2P FG1N FG1P FG0N FG0P

FB2N FB2P FB1N FB1P FB0N FB0P

FCKN

BCKP

BCKN

FSTH

FCKP

POL

CPV STV

OE

GVOFF

SOG

DSUB_DET

DVI_5V

VCTRL

V12A

Vref

B5

POWER

V5A

V18C

V33C

V33P

DVI_5V

VGA_5V

VCTRL

Vref

B4

DVI

G+

R+

B-

R-

B+

G-

CLK+

CLK-

V5A

V5A_ESD

DDCD_DAT

DDCD_CLK

DVI_5V

OSD

B1

LED_GL

POWER

AUTO

LEFT

RIGHT

MENU

TURBO

LED_OR

AUDIOR-

AUDIOR+

AUDIOL-

AUDIOL+

V33C

ViewSonic Corporation

Model

Title

Date Rev:

ViewSonic Corporation

53

Confidential - Do Not Copy VA1912w-2_VA1912wb-2

System Diagram

FB0N FB0P FB1N FB1P FB2N FB2P

FG0N FG0P FG1N FG1P FG2N FG2P

FR0N FR0P FR1N FR1P FR2N FR2P

BB0N BB0P BB1N BB1P BB2N BB2P

BG0N BG0P BG1N BG1P BG2N BG2P

BR0N BR0P BR1N BR1P BR2N BR2P

FCKP FCKN BCKP BCKN

BSTH FSTH GVOFF STB STV CPV OE

POL

SAR1 SAR2

LED_GL

LED_OR

DCDC_ON/OFF

GNDR

RIN

GNDG

GIN

GNDB

BIN

SOG

VSYNC

HSYNC

DDCA_CLK

R+ RG+ GB+ BCLK+ CLK-

DDCD_DAT

SAR2SAR2

SAR1

DDCA_DAT

DDCD_CLK

WP WP

WP

DVI

DSUB

DVI

FB0N FB0P FB1N FB1P FB2N FB2P

FG0N FG0P FG1N FG1P FG2N FG2P

FR0N FR0P FR1N FR1P FR2N FR2P

BB0N BB0P BB1N BB1P BB2N BB2P

BG0N BG0P BG1N BG1P BG2N BG2P

BR0N BR0P BR1N BR1P BR2N BR2P

FCKP FCKN BCKP BCKN

BSTH FSTH GVOFF STB STV CPV OE

POL

AUD_DET

VCM_PWM PANEL_ON/OFF

INV_ON/OFF INV_ADJ

LED_GL LED_OR VOL_ADJ

DCDC_ON/OFF

GNDR

RIN GIN

GNDG

BIN

GNDB

SOG

VSYNC

HSYNC

DDCA_DAT DDCA_CLK

R+ RG+ GB+ B-

CLK+

CLKDDCD_DAT DDCD_CLK

V33C

V18C

V5A

AUDIO_ON

RIGHT

POWER

AUTO

LEFT

MENU

TURBO

VCTRL

AUTO POWER

MENU LEFT RIGHT

TURBO

V12A

DVI_5V

DSUB_DET

Vref

AVDD

VDDCVDPPAVDDVPLLVDVI VMPLL

GND

VDPP

VMPLL

VDVI

GND

VPLL

GND

AVDD

GND

VDDC

VCC18

VCC33

V5A

GND

VCC33

GND

VCC33

GND

VCC33

GND

VCC33

GND

VCC33

GND

Close to respective power Pins

MENU

TURBO

RIGHT +LEFT +POWER

1.77V

1.24V

0.47V

AUTO

VOLTAGEPIN

0.47V

POWER

1.77V

LEFT

RIGHT

1.24V

SR1(1.77) SR2(0.93)

need to modify, the SAR is 6 bits and the max voltage is 1.8V

C89 0603/100n/25V/7

R114

0603/10K/5%

R114

0603/10K/5%

Y1

14.31818MHzY114.31818MHz

C74

1206/10u/16V/X/PbF

C74

1206/10u/16V/X/PbF

C59 0603/100n/25V/7

R108

0603/10K/5%

R108

0603/10K/5%

TP

1

VDDC1 VDDC1

C87 0603/100n/25V/7

R112

0603/10K/5%/OPEN

R112

0603/10K/5%/OPEN

R118 R0603/OPENR118 R0603/OPEN

C55

1206/10u/16V/X/PbF

C55

1206/10u/16V/X/PbF

C66 0603/100n/25V/7

C75 0603/100n/25V/7

1 2

L13L13

C91

0603/100n/25V/7

C91

0603/100n/25V/7

R214

0603/0R/5%/open

R214

0603/0R/5%/open

C84 1206/4.7u/16V/Y

C90

0603/100n/25V/7

C90

0603/100n/25V/7

C81 0603/100n/25V/7

R113

0603/10K/5%

R113

0603/10K/5%

C78

1206/10u/16V/X/PbF

C78

1206/10u/16V/X/PbF

R213

0603/0R/5%/open

R213

0603/0R/5%/open

C80

1206/10u/16V/X/PbF

C80

1206/10u/16V/X/PbF

RIN0P

59

GIN0P

56

SOGIN0

57

BIN0P

54

RIN0N

58

GIN0N

55

BIN0N

53

HSYNC0

63

VSYNC0

64

REXT

51

REFP

62

REFM

61

SDO

70

SCK

72

SCZ

71

SDI

73

GPIO_P27/PWM1

79

PWM1/GPIO_P25

21

NC/LVACKM/NC

108

XIN

32

XOUT

33

RA1P/LVA2P/RA2

109

RA1N/LVA2M/RA3

110

RA2P/LVA1P/RA4

111

RA2N/LVA1M/RA5

112

RA3P/LVA0P/RA6

113

RA3N/LVA0M/RA7

114

CLKAP/LVB3P/LHSYNC

118

CLKAN/LVB3M/LVSYNC

119

CLKBP/LVBCKP/LCK_ODD

120

CLKBN/LVBCKM/LDE

121

NC/LVB2P/NC

122

NC/LVB2M/NC

123

BB1P/LVB1P/BB2

124

BB1N/LVB1M/BB3

125

BB2P/LVB0P/BB4

126

BB2N/LVB0M/BB5

127

NC/LVACKP/NC

107

GA3N/LVA3M/GA7

106

GA3P/LVA3P/GA6

105

GND41GND

47

RX2P

39

RX2N

40

RX1P

42

RX1N

43

AVDD_DVI

44

RX0P

45

RX0N

46

RXCKP

48

RXCKN

49

GND38GND96GND

116

VDDP

67

VDDC

12

MODE[1]

104

MODE[0]

102

VCTRL

11

VDDP

14

VDD_OTP

68

DDCA_SDA/RS232_Tx

65

DDCA_SCL/RS232_Rx

66

DDCD_SDA

36

DDCD_SCL

37

PWM0/GPIO_P26

29

AVDD_DVI

50

VDDC

97

GPIO_P15/PWM0

69

PWM2/GPIO_P24

78

GPIO_P12

20

RSTN

22

GPIO_P00/SAR1

23

GPIO_P01/SAR2

24

GPIO_P06

27

GPIO_P07

28

GPIO_P13

30

GPIO_P14

31

GPIO_P16/PWM2

35

DDCROM_SDA

76

DDCROM_SCL

77

RST

19

GA2P/NC/GA4

100

GA2N/NC/GA5

101

GA1P/NC/GA2

98

GA1N/NC/GA3

99

BA3P/NC/BA6

93

BA3N/NC/BA7

94

BA2P/NC/BA4

91

BA2N/NC/BA5

92

BA1P/NC/BA2

89

BA1N/NC/BA3

90

RB1P/NC/RB2

9

RB1N/NC/RB3

10

RB2P/NC/RB4

15

RB2N/NC/RB5

16

RB3P/NC/RB6

17

RB3N/NC/RB7

18

GB1P/NC/GB2

2

GB1N/NC/GB3

3

GB2P/NC/GB4

5

GB2N/NC/GB5

6

GB3P/NC/GB6

7

GB3N/NC/GB7

8

BB3P/NC/BB6

128

BB3N/NC/BB7

1

ESP

80

OSP

81

GPO0

88

GPO1

87

GPO2

86

GPO3

85

GPO4

84

GPO5

83

GPO6

82

GPIO_P02/SAR3

25

GPIO_P03

26

GPIO_P22

75

GPIO_P23

74

AVDD_PLL

52

AVDD_MPLL34AVDD_MPLL

4

VDDP95VDDP

103

VDDP

115

VDDC

117

AVDD_ADC

60

GND

13

TSUM57AK

U1

TSUM57AK

U1

C92 0603/100n/25V/7

R201

0603/10M/5%/RoHS/OPEN

R201

0603/10M/5%/RoHS/OPEN

R200

0603/10M/5%/RoHS/OPEN

R200

0603/10M/5%/RoHS/OPEN

C56 0603/100n/25V/7

C77 0603/100n/25V/7

R110 0603/100R/5%R110 0603/100R/5%

C79 0603/100n/25V/7

TP

1

VPLL1 VPLL1

C68

0603/100n/25V/7

C68

0603/100n/25V/7

1 2

L10L10

R105 0603/100R/5%R105 0603/100R/5%

R107

0603/10K/5%

R107

0603/10K/5%

C152

0805/10u/6.3V/5/open

C152

0805/10u/6.3V/5/open

R124 0603/390R/1%R124 0603/390R/1%

C93 0603/22p/50V/NC93 0603/22p/50V/N

R209OPEN/R0603 R209OPEN/R0603

C70

0603/10n/25V/7/RoHS

C70

0603/10n/25V/7/RoHS

TP

1

VDPP1 VDPP1

TP

1

GPO51 GPO51

R109

0603/10K/5%

R109

0603/10K/5%

R115

0603/10K/5%

R115

0603/10K/5%

R116

0603/10K/5%

R116

0603/10K/5%

R127 0603/20K/1%/OPEN

R138

0603/23.2K/1%/OPEN

R138

0603/23.2K/1%/OPEN

C94 0603/22p/50V/NC94 0603/22p/50V/N

R111

0603/10K/5%

R111

0603/10K/5%

C85 0603/100n/25V/7

R67

0603/12.1K/1%/OPEN

R67

0603/12.1K/1%/OPEN

1 2

L12 HCB2012KF-420T40L12 HCB2012KF-420T40

R212 0603/1K/5%

1 2

L14L14

C65

1206/10u/16V/X/PbF

C65

1206/10u/16V/X/PbF

C76

1206/10u/16V/X/PbF

C76

1206/10u/16V/X/PbF

R140

0603/3.3K/1%/OPEN

R140

0603/3.3K/1%/OPEN

C58 0603/100n/25V/7

C86 0603/100n/25V/7

1

2 3

Q7 MMBT3904-FQ7MMBT3904-F

C88 0603/100n/25V/7C880603/100n/25V/7

R117 0603/100R/5%R117 0603/100R/5%

TP

1

VMPLL1 VMPLL1

CE#

1

SDO

2

WP#

3

VSS4SDI

5

SCK

6

HOLD#

7

VDD

8

U2

Pm25LV512U2Pm25LV512

R101 0603/100R/5%R101 0603/100R/5%

TP

1

SAR11 SAR11

TP

1

AVDD1 AVDD1

R1000603/100R/5%R1000603/100R/5%

R128

0603/23.2K/1%/OPEN

R128

0603/23.2K/1%/OPEN

C67 0603/100n/25V/7

R137 0603/20K/1%/OPEN

C150

0805/10u/6.3V/5/open

C150

0805/10u/6.3V/5/open

VCC

8

A12WP

7

SCL

6

SDA5GND

4

A2

3

A0

1

U7

AT24C16AN-10SU-2.7/RoHS

U7

AT24C16AN-10SU-2.7/RoHS

TP

1

VDVI1TPVDVI1

TP

R119 R0603/OPENR119 R0603/OPEN

R103 0603/100R/5%R103 0603/100R/5%

R210

0603/30K/5%

R210

0603/30K/5%

C60 0603/100n/25V/7

R120 0603/10K/5%R120 0603/10K/5%

C57 0603/100n/25V/7

1 2

L11L11

R102 0603/4.7K/0.1%/RoHS

R122

0603/10K/5%/open

R122

0603/10K/5%/open

R104 0603/100R/5%R104 0603/100R/5%

R79

0603/20K/1%/OPEN

R79

0603/20K/1%/OPEN

OUT

1

VDD

2

VSS3NC

4

CD

5

U5

RN5VD40AA/RoHS

U5

RN5VD40AA/RoHS

R139

0603/12.1K/1%/OPEN

R139

0603/12.1K/1%/OPEN

R106

0603/10K/5%

R106

0603/10K/5%

TP

1

SAR21 SAR21

1 2

L17L17

R121 0603/100R/5%R121 0603/100R/5%

R134

0603/3.3K/1%/OPEN

R134

0603/3.3K/1%/OPEN

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Model

Title

Date Rev:

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Confidential - Do Not Copy VA1912w-2_VA1912wb-2

Scalar

V5A

VIN_12V

INV_ADJ

INV_ON/OFF

VOL

MUTE

AUD_DET

MUTE

AUD_Shutdown

INV_ADJ

INV_ON/OFF

V33C

V5A

V12A

VOL_ADJ

AUDIORAUDIOR+ AUDIOLAUDIOL+

AUDIO_ON

AUD_DET

LED_GL

GND_INV

V33C

GND

GNDGNDGND

GND

VIN_12V

GND

V5A

GND

V5A

V12A

GND

V5A

GND

V5A

GNDGND

GND

[GND_INV]

Low: MUTE OFF

R181

0603/10K/5%/RoHS

R181

0603/10K/5%/RoHS

C8

0603/0.1u/25V/open

C8

0603/0.1u/25V/open

R16 0603/1K/5%/RoHS

R10

0603/4.7K/5%/RoHS

R10

0603/4.7K/5%/RoHS

C161

0603/100n/25V/Y/RoHS

C161

0603/100n/25V/Y/RoHS

R183 0603/1K/5%/RoHS

1 2

LP5 FBMJ2125HS420/PbF

C7

0603/1u/10V/Y/open

C7

0603/1u/10V/Y/open

+

CP1

UWT1E101MCL1GS/RoHS

+

CP1

UWT1E101MCL1GS/RoHS

FP1

3216FF/1206/3A/RoHS

FP1

3216FF/1206/3A/RoHS

CP2

1206/10u/16V/5/RoHS

CP2

1206/10u/16V/5/RoHS

R14

0603/4.7K/5%/RoHS

R14

0603/4.7K/5%/RoHS

1

32

Q18

2N7002/RoHS

Q18

2N7002/RoHS

TP

1

V5A1 V5A1

R12

0603/1K/5%/RoHS

R12

0603/1K/5%/RoHS

LP4 FBMJ2125HS420/PbFLP4 FBMJ2125HS420/PbF

1

32

Q2 2N7002/RoHS

1

VOL_ADJ1VOL_ADJ1

LP2 FBMJ2125HS420/PbFLP2 FBMJ2125HS420/PbF

CP5

1210/4.7u/25V/5/RoHS

CP5

1210/4.7u/25V/5/RoHS

R13

0603/4.7K/5%/RoHS

R13

0603/4.7K/5%/RoHS

R11 0603/10K/5%/OPEN

LP3 FBMJ2125HS420/PbFLP3 FBMJ2125HS420/PbF

R182

0603/10K/5%/RoHS

R182

0603/10K/5%/RoHS

R19 0603/1K/5%/RoHS

1

VOL1VOL1

C3

0603/100n/25V/Y/RoHS

C3

0603/100n/25V/Y/RoHS

CP6 1210/4.7u/25V/5/RoHS

LP1

FBMJ2125HS420/PbF

LP1

FBMJ2125HS420/PbF

12

CP4

LV470M025E055R

CP4

LV470M025E055R

R9 0603/10K/5%/RoHSR9 0603/10K/5%/RoHS

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

CN4

Header2X8FR2.54

CN4

Header2X8FR2.54

R22

0603/0R/5%/RoHS/OPEN

R22

0603/0R/5%/RoHS/OPEN

CP3

1210/4.7u/25V/5/RoHS

CP3

1210/4.7u/25V/5/RoHS

TP

1

INV_ON/OFF1

C4 OPEN/0603C4OPEN/0603

C6

1206/10u/16V/5/RoHS

C6

1206/10u/16V/5/RoHS

TP

1

INV_ADJ1 INV_ADJ1

1

3 2

Q16

TP0610K/PbF

Q16

TP0610K/PbF

1

3 2

Q3

TP0610K/PbF

Q3

TP0610K/PbF

1

32

Q4

2N7002/RoHS

Q4

2N7002/RoHS

1

32

Q5

2N7002/RoHS

Q5

2N7002/RoHS

R18

0603/10K/5%/RoHS

R18

0603/10K/5%/RoHS

R15

0603/10K/5%/RoHS

R15

0603/10K/5%/RoHS

1

32

Q1

2N7002/RoHS

Q1

2N7002/RoHS

C5 0603/100n/25V/7/RoHS

R17

OPEN/0603

R17

OPEN/0603

R20

0603/0R/5%/RoHS/OPEN

R20

0603/0R/5%/RoHS/OPEN

TP

1

VIN_12V1 VIN_12V1

ViewSonic Corporation

Model

Title

Date Rev:

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Confidential - Do Not Copy VA1912w-2_VA1912wb-2

Inverter Interface

V33P

V33C

V33CV5A

V33PV5A

DVI_5V

VGA_5V

VCTRL

V18C

Vref

GND

V18C

GND

(SCALER VCC)

(POWER FOR SCALER)

(Panel VCC)

Heat-Sink

L9 FBMJ2125HS420/PbFL9 FBMJ2125HS420/PbF

B

1

C2E

3

GND

4

Q8

H2907ASQ8H2907AS

C160 0805/4.7u/16V/Y

TP

1

V33C1 V33C1

R202 0603/51R/1%

GND

1

VOUT2VIN

3

VOUT

4

U4

LM1117MPX-3.3/RoHS

U4

LM1117MPX-3.3/RoHS

L18

FBMJ2125HS420/PbF

L18

FBMJ2125HS420/PbF

C44

1206/22u/16V/Y/RoHS

C44

1206/22u/16V/Y/RoHS

R203 0603/2K/1%

1

2

3

D7 BAV70W/open

C43

0603/100n/25V/7/RoHS

C43

0603/100n/25V/7/RoHS

1 2

D9

B240A-FD9B240A-F

GND

1

VOUT2VIN

3

VOUT

4

U6

LM1117MPX-3.3/RoHS

U6

LM1117MPX-3.3/RoHS

C45

0603/100n/25V/7/RoHS

C45

0603/100n/25V/7/RoHS

C53

0603/100n/25V/7/RoHS

C53

0603/100n/25V/7/RoHS

C52

1206/22u/16V/Y/RoHS

C52

1206/22u/16V/Y/RoHS

R1

0603/0R/5%/open

R1

0603/0R/5%/open

TP

1

V33P1 V33P1

C51

0603/100n/25V/7/RoHS

C51

0603/100n/25V/7/RoHS

C50

1206/22u/16V/Y/RoHS

C50

1206/22u/16V/Y/RoHS

TP

1

V18V1 V18V1

1 2

D35 1N4148WS-F

R5

0603/0R/5%/open

R5

0603/0R/5%/open

C42

1206/22u/16V/Y/RoHS

C42

1206/22u/16V/Y/RoHS

R204

0603/100R/1%

R204

0603/100R/1%

ViewSonic Corporation

Model

Title

Date Rev:

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Confidential - Do Not Copy VA1912w-2_VA1912wb-2

Power

VSI

HSYNC

VSYNC

VGA_5V

HSI

RIN GIN BIN

VSYNC

GNDR GNDG GNDB

DDCA_CLK

HSYNC

DDCA_DAT

V5A_ESD

V5A

DDCA_DAT

DDCA_CLK

SOG

VGA_5V

DSUB_DET

V5A_ESD

GND GND

GNDGND

GND

V5A

GND

1 6 2 7 3 8 4 9 5

11 12 13 14 15

10

CN7 89263-6762

1 2

D33 UDZSF-5.6B/PbF

R66 0603/0R/5%/RoHSR66 0603/0R/5%/RoHS

R24 0603/470R/1%R24 0603/470R/1%

1

32

D25 BAV99W/RoHS

R144 0603/0R/5%/OPEN

1

32

D24 BAV99W/RoHS

C11 0603/47n/16V/7/RoHSC11 0603/47n/16V/7/RoHS

C158

0603/100n/25V/X/RoHS

C158

0603/100n/25V/X/RoHS

R129

0603/2.2K/5%/RoHS

R129

0603/2.2K/5%/RoHS

R21 0603/56R/1%R21 0603/56R/1%

D10

0603220KV05T/RoHS

D10

0603220KV05T/RoHS

R27 0603/100R/1%R27 0603/100R/1%

R55

0603/2.2K/5%/RoHS

R55

0603/2.2K/5%/RoHS

1 2

D32 UDZSF-5.6B/PbF

C129

0603/100n/25V/X/RoHS

C129

0603/100n/25V/X/RoHS

R135 0603/10K/5%/RoHSR135 0603/10K/5%/RoHS

C9 0603/47n/16V/7/RoHSC9 0603/47n/16V/7/RoHS C10 0603/47n/16V/7/RoHSC10 0603/47n/16V/7/RoHS

C128 0603/33p/50V/N/RoHS

R133

0603/10R/5%/RoHS

R133

0603/10R/5%/RoHS

R30

0603/75R/1%

R30

0603/75R/1%

C125 0603/47n/16V/7/RoHSC125 0603/47n/16V/7/RoHS

C157

0603/100n/25V/X/RoHS

C157

0603/100n/25V/X/RoHS

D1

0603/10p/varistor/OPEN

D1

0603/10p/varistor/OPEN

C15 0603/1n/16V/7C15 0603/1n/16V/7

L20 0603/0R/5%/RoHSL20 0603/0R/5%/RoHS

C123 0603/47n/16V/7/RoHSC123 0603/47n/16V/7/RoHS

R34 0603/56R/1%R34 0603/56R/1%

R78

0603/75R/1%

R78

0603/75R/1%

D29 0603220KV05T/RoHS

R131 0603/100R/5%/RoHSR131 0603/100R/5%/RoHS

C124 0603/47n/16V/7/RoHSC124 0603/47n/16V/7/RoHS

R23 0603/56R/1%R23 0603/56R/1%

R35

0603/0R/5%/OPEN

R35

0603/0R/5%/OPEN

TP

1

VSYNC1 VSYNC1

R68 0603/10K/5%/RoHSR68 0603/10K/5%/RoHS

R57 0603/1K/1%/RoHSR57 0603/1K/1%/RoHS

1

32

D5 BAV99W/RoHS

C23 0603/100n/25V/7/RoHS

C127 0603/33p/50V/N/RoHS/open

R25 0603/100R/1%R25 0603/100R/1%

C100

0603/220p/50V/N

C100

0603/220p/50V/N

TP

1

HSYNC1 HSYNC1

R54 0603/1K/1%/RoHSR54 0603/1K/1%/RoHS

R64 0603/100R/5%/RoHSR64 0603/100R/5%/RoHS

C126 0603/33p/50V/N/RoHS/open

NC

1

NC

2

NC

3

GND4SDA

5

SCL

6

VCLK

7

VCC

8

U15

AT24C02-10TU-1.8/RoHS

U15

AT24C02-10TU-1.8/RoHS

1

2

3

D31 BAV70W/RoHS

D2

0603/10p/varistor/OPEN

D2

0603/10p/varistor/OPEN

D6

0603220KV05T/RoHS

D6

0603220KV05T/RoHS

R29

0603/75R/1%

R29

0603/75R/1%

1 2

D30 BZT52-C5V6S/RoHS

C159

0603/100n/25V/X/RoHS

C159

0603/100n/25V/X/RoHS

R60 0603/47K/5%/RoHS

R136 0603/3.9K/5%/RoHSR136 0603/3.9K/5%/RoHS

L8

BK1608LL121/PbF

L8

BK1608LL121/PbF

R26 0603/100R/1%R26 0603/100R/1%

ViewSonic Corporation

Model

Title

Date Rev:

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Confidential - Do Not Copy VA1912w-2_VA1912wb-2

VGA

LED_O

LED_G

LED_O

LED_G

LED_OR

RIGHT TURBO AUTO

MENU LEFT

POWER

LED_GL

AUDIOL-

AUDIOL+

AUDIOR-

AUDIOR+

V33C

V33C V33C

V33C

GND

GND GND

GND

V33C

Bead Array LP8,LP9,LP11=>modified RoHs

1

32

Q15

2N7002/RoHS/OPEN

Q15

2N7002/RoHS/OPEN

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

CN3

HEADER 10_2/RoHS

CN3

HEADER 10_2/RoHS

C1

0603/100n/25V/Y/RoHS/OPEN

C1

0603/100n/25V/Y/RoHS/OPEN

R2 0603/1K/5%/RoHS/OPEN

7

8

5

3

1 2

4

6

LP6 BK32164M121LP6 BK32164M121

1 2

L4

MPZ1608S221/RoHS

L4

MPZ1608S221/RoHS

1 2

L3

MPZ1608S221/RoHS

L3

MPZ1608S221/RoHS

R63

0603/10K/5%/RoHS

R63

0603/10K/5%/RoHS

1

3 2

Q12

TP0610K/PbF

Q12

TP0610K/PbF

1 2

L2

MPZ1608S221/RoHS

L2

MPZ1608S221/RoHS

R3 0603/249R/1%/RoHS

1 2

L1

MPZ1608S221/RoHS

L1

MPZ1608S221/RoHS

R4

0603/249R/1%/RoHS

R4

0603/249R/1%/RoHS

7

8

5

3

1 2

4

6

LP7 BK32164M121LP7 BK32164M121

1

3 2

Q14

TP0610K/PbF

Q14

TP0610K/PbF

785

312

4

6

RP46

0603*4/10K/5%/RoHS

RP46

0603*4/10K/5%/RoHS

453627

18

CP8

0603*4/100n/25V/RoHS

CP8

0603*4/100n/25V/RoHS

C2

0603/100n/25V/Y/RoHS/OPEN

C2

0603/100n/25V/Y/RoHS/OPEN

R36 0603/1K/5%/RoHS/OPEN

785

312

4

6

RP47 0603*4/10K/5%/RoHS

453627

18

CP7 0603*4/100n/25V/RoHS

1

32

Q13

2N7002/RoHS/OPEN

Q13

2N7002/RoHS/OPEN

R8

0603/0R/5%/RoHS

R8

0603/0R/5%/RoHS

R7

0603/0R/5%/RoHS

R7

0603/0R/5%/RoHS

R62

0603/10K/5%/RoHS

R62

0603/10K/5%/RoHS

ViewSonic Corporation

Model

Title

Date Rev:

ViewSonic Corporation

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Confidential - Do Not Copy VA1912w-2_VA1912wb-2

OSD

VCC

OE

STV

CPV

STB

POL

VCC

STV

CPV

OE

POL

STB

FSTH

PANEL_ON/OFF

DCDC_ON/OFF

VCM_PWM

GVOFF

PANEL_ON/OFF

DCDC_ON/OFF

VCM_PWM

GVOFF

BSTH

FSTH

BSTH

V33P

STV

CPV

OE

FB0N

FB0P

FB1N

FB1P

FB2N

FB2P

POL

STB

FCKN

FCKP

FG2P FG1P FG0P

FG1N FG0N

FG2N

FR0P

FR1N

FR1P

FR2N

FR2P

FR0N

FSTH

V12A

V5A

PANEL_ON/OFF

DCDC_ON/OFF

VCM_PWM

GVOFF

BSTH

BR1N

BR2N

BR2P

BR0P BR0N

BR1P

BG0N

BG2N BG1P

BG2P

BG1N BG0P

BCKP BCKN

BB1P

BB2N

BB0P

BB1N BB0N

BB2P

V12A

V33P

GND

V5A

GND

S Board X Board

RA N/P --> BA P/N GA N/P --> GA P/N BA N/P --> RA P/N

1

OE1OE1

1

POL1POL1

1

STV1STV1

C121

1206/4.7u/35V/Y/E

C121

1206/4.7u/35V/Y/E

C118 0603/100n/25V/X/RoHS

1

FSTH1FSTH1

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

CN1

IL-FHR-F36S-HF/RoHS

CN1

IL-FHR-F36S-HF/RoHS

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

CN2

IL-FHR-F36S-HF/RoHS

CN2

IL-FHR-F36S-HF/RoHS

1

DCDC_ON/OFF1DCDC_ON/OFF1

C122

0603/100n/25V/X/RoHS

C122

0603/100n/25V/X/RoHS

1

STB1STB1

1

VCM_PWM1VCM_PWM1

L7 FBMJ2125HS420/PbFL7 FBMJ2125HS420/PbF

C120

0603/100n/25V/7/RoHS

C120

0603/100n/25V/7/RoHS

1

BSTH1BSTH1

C119

1206/22u/16V/Y/RoHS

C119

1206/22u/16V/Y/RoHS

1

CPV1CPV1

1

GVOFF1GVOFF1

1

PANEL_ON/OFF1PANEL_ON/OFF1

1

VCC1VCC1

ViewSonic Corporation

Model

Title

Date Rev:

ViewSonic Corporation

59

Confidential - Do Not Copy VA1912w-2_VA1912wb-2

Panel Interface

60 ViewSonic Corporation Confidential - Do Not Copy VA1912w-2_VA1912wb-2

11. PCB Layout Diagrams

61 ViewSonic Corporation Confidential - Do Not Copy VA1912w-2_VA1912wb-2

62 ViewSonic Corporation Confidential - Do Not Copy VA1912w-2_VA1912wb-2

ViewSonic Corporation

* Reader’s Response*

Dear Readers:

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

Assessment

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

Unit Excellent Good Fair Bad

1. Precautions and Safety Notices

2. Specification

3. Front Panel Function Control Description

4. Circuit Description

5. Adjustment Procedure

6. Troubleshooting Flow Chart

7. Recommended Spare Parts List

8. Exploded Diagram and Exploded Parts List

9. Block Diagrams

10. Schematic Diagrams

11.PCB Layout Diagrams

B. Are you satisfied with this Service Manual?

Item Excellent Good Fair Bad

1. Service Manual Content

2. Service Manual Layout

3. The form and listing

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

Reader’s basic dada:

Name:

Title:

Company:

Add:

Tel:

Fax:

E-mail:

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

62

Confidential - Do Not Copy VA1912w-2_VA1912wb-2