Read VA1912w-2, VA1912wb-2 (VS10866) Service Manual text version

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

Copyright Copyright © 2006 by ViewSonic Corporation. All rights reserved. No part of this publication may be reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any language or computer language, in any form or by any means, electronic, mechanical, magnetic, optical, chemical, manual or otherwise, without the prior written permission of ViewSonic Corporation. Disclaimer ViewSonic makes no representations or warranties, either expressed or implied, with respect to the contents hereof and specifically disclaims any warranty of merchantability or fitness for any particular purpose. Further, ViewSonic reserves the right to revise this publication and to make changes from time to time in the contents hereof without obligation of ViewSonic to notify any person of such revision or changes. Trademarks 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

1a 1b

SM Editing Date

04/14/2006 8/09/2006

ECR Number

Description of Changes

Initial Release

Editor

Jamie Chang Jamie Chang

VS-E060210

Add VA1912wb-2 from VA1912w-2

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TABLE OF CONTENTS

1. 2. 3. 4. 5. 6. 7. 8. 9.

Precautions and Safety Notices Specification Front Panel Function Control Description Circuit Description Adjustment Procedure Troubleshooting Flow Chart Recommended Spare Parts List Exploded Diagram and Exploded Parts List Block Diagram

1 3 10 16 17 37 45 50 52 53 60

10. Schematic Diagrams 11. PCB Layout Diagrams

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

Incorrect Methods : 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 Size Luminance (Typ, cd/) Contrast Ratio (Typ) TFTLCD PANEL Colors ( 6 bit + 2 bit FRC) Response Time (Typ) Viewing Angle (H/V) Recommend resolution Input Signal Analog (75ohms, 0.7/1.0 Vp-p) Digital Separate Sync Sync Compatibility Composite Sync Sync on Green PC Compatibility Power Mac TV Box (NextVision 6) Power Voltage Power Consumption Audio AC 100-240V, 50/60Hz On Mode(Max / Typ) Active Off Mode (Max) Amplifier / Speaker Tilt ( 20 ° to -5 °) Ergonomics Swivel Pivot Height Adjust OSD Control [ X] [ 1 ] [] [] [ 2 ] [ ] Physical (W x H x D mm) Dimension Package (W x H x D mm) Physical (Net kg/lb) Package (Gross Kg/lb) Temperature (/) Humidity (%) Temperature (/) Humidity (%) VA1912w-2 / VA1912wb-2 19" wide 300 cd/ 500:1 16.2 M colors 8 ms 150 ° / 130 ° 1440 x [email protected] Yes No Yes No No Yes Yes Yes Yes 36W(max) / 32W(typ) 2W 1.5 W / 2.5W x 2 Yes No No No Yes 451 x 391 x 197 (mm) 17.8 x 15.4 x 7.8 (in) 538 x 470 x 158 (mm) 21.2 x 18.5 x 6.2 (in) 4.5kg (9.9lb) 6.2kg (13.7lb) 41-95/+5-+35 20 % - 80 % -4-131/-20-55 20 % - 85 %

Weight

Operating Condition

Storage Condition

CB / TCO99 / UL/cUL / FCC-B / ICES 003 / Argentina-TUV/S / NOM / EPA Energy Regulation Star / TUV/Ergo / ISO13406-2 / TUV/GS / CE / GOST-R / SASO / BSMI / PSB / C-Tick / Korea (MIC) / CCC 3

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2.2 GENERAL SPECTION Test Resolution & Frequency Test Image Size Contrast and Brightness Controls 1440 x 900 @ 60Hz Full Size Factory Default: Contrast = 70%, Brightness = 100%

2.3 VIDEO INTERFACE

Analog Input Connector Digital Input Connector Default Input Connector Video Cable Strain Relief Video Cable Connector DB-15 Pin out

DB-15 (Analog), refer the appendix A N/A Defaults to the first detected input Equal to twice the weight of the monitor for five minutes Compliant DDC 2B Video RGB (Analog)

Video Signals

Separate 75 Ohms (Analog) 950 mV with no damage to monitor 1250 mV with no damage to monitor TTL Compliant with Revision 1.3 Separate Sync Shall be compatible with all PC type computers, Macintosh computers, and after market video cards 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.

Video Impedance Maximum PC Video Signal Maximum Mac Video Signal Sync Signals DDC 2B Sync Compatibility Video Compatibility

Resolution Compatibility

Exclusions

Not compatible with interlaced video

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2.4 POWER SUPPLY Power Supply (Adapter) Input Voltage Range Input Frequency Range Short Circuit Protection Over Current Protection Leakage Current Efficiency Fuse Power Dissipation Max Input AC Current Inrush Current (Cold Start) Power Supply Cold Start Power Supply Transient Immunity Power Supply Line Surge Immunity Part Number: 27-D003247 90 to 264 VAC 47 to 63 Hertz OUTPUT CAN BE SHORTED WITHOUT DAMAGE FUSE 3.15A TYPICAL AT 250 VAC 75 MA (MAX) AT 240VAC / 50HZ 80 % TYPICAL AT 100VAC @60HZ INTERNAL AND NOT USER REPLACEABLE 36 WATTS 1.6 ARMS @ nominal RANGE 80 A @ 240VAC , 50HZ 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 EN61000-4-4 ±2KV TRANSIENT TEST WITH NO DAMAGE Shall be able to withstand ±2KV (L-L) and ±2.3KV (L-PE) with no damage Shall be able to function properly, without reset or visible Power Supply Missing Cycle Immunity 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 Power Supply Acoustics to be in compliance with ISO 7779 (DIN EN27779:1991) Noise measurements of machines acoustics. Power Switch noise shall not be considered Separate 3-prong NEMA 5-15P type plug. Length = US Type Power Cable 1.8m. Connects to display. Color = Black Schuko CEE7-7 type plug. European Type Power Cable Length = 1.8m, Connects to display. Color = Black Separate 3-prong type plug. CCC Type Power Cable Length = 1.8m. Connects to display. Color = Black Separate 2-prong NEMA 1-15P type plug. Length = PSE Type Power Cable 1.8m. Connects to display. Color = Black Power Saving Operation(Method) Power Consumption Recovery Time VESA DPMS Signaling ON Mode < 36 W (max) / 32 W (typ) ACTIVE OFF < 1 W ON Mode = N/A, ACTIVE OFF < 5 sec 5

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2.5 ELECTRICAL REQUIREMENT Horizontal / Vertical Frequency Horizontal Frequency Vertical Refresh Rate Maximum Pixel Clock Sync Polarity 30 ­ 82 kHz 50 ­ 85* Hz. 135 MHz (EDID file is 140MHz) Independent of sync polarity.

Timing Table Item Timing 1 640 x 350 @ 70Hz, 31.5kHz 2 640 x 400 @ 60Hz, 31.5kHz 3 640 x 400 @ 70Hz, 31.5kHz 4 640 x 480 @ 60Hz, 31.5kHz 5 640 x 480 @ 67Hz, 35.0kHz 6 640 x 480 @ 72Hz, 37.9kHz 7 640 x 480 @ 75Hz, 37.5kHz 8 640 x 480 @ 85Hz, 43.27kHz 9 720 x 400 @ 70Hz, 31.5kHz 10 800 x 600 @ 56Hz, 35.1kHz 11 800 x 600 @ 60Hz, 37.9kHz 12 800 x 600 @ 75Hz, 46.9kHz 13 800 x 600 @ 72Hz, 48.1kHz 14 800 x 600 @ 85Hz, 53.7kHz 15 832 x 624 @ 75Hz, 49.7kHz 16 1024 x 768 @ 60Hz, 48.4kHz 17 1024 x 768 @ 70Hz, 56.5kHz 18 1024 x 768 @ 72Hz, 58.1kHz 19 1024 x 768 @ 75Hz, 60.0kHz 20 1024 x 768 @ 85Hz, 68.67kHz 21 1152 x [email protected] 75Hz, 67.5kHz 22 1280 x 1024 @ 60Hz, 63.4kHz 23 1280 x 1024 @ 75Hz, 79.97kHz 24 1280x 768 @ 60Hz, 47.78kHz 25 1280 x 960 @60Hz, 60kHz 26 1440 x 900 @ 60Hz, 55.96kHz *The image vertical size might not be full screen. 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-TouchTM Function Actions") While running Change Mode, Auto Adjust or Memory Recall, the image shall blank Analog Yes Yes* Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Digital No No No No No No No No No No No No No No No No No No No No No No No No No No

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2.6 FRONT PANEL CONTROLS AND INDICATORS Front Panel Hardware Controls

Power Switch (Front Head) Power LED (Front Head)

Power Control, soft Power Switch. 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] [2] [] or [] [] + [] [1] + [2] [1] + [] + [] [1] + [] [1] + [] [ X] Main Menu Adjust Contrast / Brightness To immediately activate Contrast menu. It should be change to Brightness OSD by push button [2] Recall both of Contrast and Brightness to default Toggle 720x400 and 640x400 mode when input 720x400 or 640x400 mode White Balance. (Not shown on user's guide) Power Lock OSD Lock 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 Volume*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-TouchTM 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 Line input signal Line input impedance Maximum power output (Electric) Signal to Noise Ratio Frequency response Distortion Vibration 3.5 mm stereo jack 1 Vrms 20k ohms 1.5W / CH 72 dB 300 TO 20KHZ 8%@1kHz There should be no audible vibration with volume at 100%. (Input signal within 1 Vrms) There should be no affect on the screen image stability under any conditions Lime Green pantone # 577C 3.5mm stereo cable / 1.8m length NOTE: THERE IS NO GUARANTEE <1 W POWER CONSUMPTION IN ACTIVE OFF MODE, WHEN THE AUDIO CABLE IS CONNECTED

Screen image Connector PC99 requirement Audio in Cable type / length Audio DPMS

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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 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). and down buttons.

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 preset.

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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

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-oversampled 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*[email protected] Test Pattern:

Checkered Pattern Every One Pixel (50%Green & 50%Blue) Inspection Item: Flicker, Mura 6. Window BG Test Signal: 1280*[email protected] Test Pattern:

Window standard pattern Inspection Item: Line Defect, Function Defect & Mura 7. 25 Gray Test Signal: 1280*[email protected] Test Pattern:

Full Screen 25% White (Gray) Inspection Item: Particle, Line Defect & Mura 8. 50 Gray Test Signal: 1280*[email protected] Test Pattern:

Full Screen 50% White (Gray) Inspection Item: Bright Dot, Particle, Line Defect & Mura 9. White Box Test Signal: 1280*[email protected] Test Pattern:

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

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10. Black Box Test Signal: 1280*[email protected] Test Pattern:

Window standard pattern Inspection Item: Bright Dot, Line Defect & Power 11. RED Test Signal: 1280*[email protected] Test Pattern:

Full Screen Red Inspection Item: Bright Dot, Partial & Line Defect 12. Green Test Signal: 1280*[email protected] Test Pattern:

Full Screen Green Inspection Item: Bright Dot, Partial & Line Defect 13. Blue Test Signal: 1280*[email protected] Test Pattern:

Full Screen Green Inspection Item: Bright Dot, Partial & Line Defect 14. Gray_Scale_0-100_V64 Test Signal: 1280*[email protected] Test Pattern:

Vertical 64 (256) Gray Scale (Right LeftFrom 0 to 100% White) Inspection Item: Line Defect & Function Defect 15. Function Test Display pattern Item 1 2 3 4 5 6 7 8 Pattern Gray_Scale_0-100_V Gray_Scale_0-100_H Black Red Green Blue White Black_Tile Description Vertical 64 (256) Gray Scale (rightleftFrom 0 to 100% White) Horizontal 64 (256) Gray Scale (updownFrom 0 to 100% White) Full Screen Black Full Screen 50% Red Full Screen 50% Green Full Screen 50% Blue Full Screen White Black Tile Under White Background Remark Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure6 Figure7 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 monitorthe monitor must be turned on the power

Step 2 : Open ISP Tool

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Step 3 : Press "connect" into ISP modedisplay the model of FlashThe dialog of figure is displayed "Device Type is Pm25LV512" then press ""

Step 4: Press "Read" then enter as below figurethen press to down load the program of BIOS (*.bin)

If down load BIOS that is successful as below figure then press""

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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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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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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)

Figure 2 Figure 1

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 3

Figure 4

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Monitor Assembly and Disassembly 1 Separate Stand Assy 1.1 Remove Stand Cover Step 1 : Remove the Seat Assy

Step 2 : Remove the Stand Cover.

Step 3 : Loose and remove 4 screws

Step4 : Remove the Stand Assy

Step 5 : Completed.

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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 3 : Lift up LCD module and remove bezel.

Step 4 : Remove 2 pieces of Backlight wires.

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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Step 6 : Remove AD PCBA.

Step7 : Completed.

4 Change New AD Board and Power Board

Step 1 : Place new AD Board. And fasten 4 fixed screws.

Step 2 : Fasten 4 fixed screws.

Step 3 : Insert FFC.

Step 4 : Insert 2 pieces of FFCs .

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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 Step 1 : Place New OSD Board.

Step 2 : Insert Audio cable to connectors of New OSD Board.

Step 3: Completed.

7. Add Cover to AD PCB Heatsink

Step 1 : Join the PCB Cover.

Step 2 : Fasten 4 fixed screws.

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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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Step 8 : Fasten 4 fixed screws.

Step 9 : Insert FFC.

Step 10 : Completed.

8. Rear Assy & Stand Assembly

Step 1 : Place Rear Cover.

Step 2 : Fasten 2 fixed screws.

Step 3 : Place the Stand Assy.

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Step 4 : Fasten 4 fixed screws.

Step 5 : Join the Stand Cover.

Step 6 : Join the Seat Assy

Step 7 : 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

Flash Dots

Abnormal Display

Bright Dot Dark Dot Backlight

Light Leakage

Mura

Image Sticking Brightness spot

Check Panel

Panel Change

Particle Dot Defect

Image Remain Group Bright Dots

Others Cosmetics Defect

Next Step

NG

TEST

A

Completed

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VA1912w-2_VA1912wb-2

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 Power/B Change

Inverter/B Change

Flicker Beat Display Flicker Check Panel Beat Display Shut Down

CNT/B Change

Panel Change

Display Wave

AD/B Change Check PCBA Power/B Change CNT/B Change Check Panel Panel Change

No Backlight

Check Adapter

Adapter Change

Next Step

NG

TEST

B

Completed

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Failure Analysis

Repair

Testing

" Panel Change" Should be Performed to Level 3 Repair

B

Display White Out Booting Delay Brightness Even Abnormal Beat Display No Backlight Check Panel Check Adapter No signal AD/B Change R.G.B Display Abnormal Check Wire Gray Scale Display Abnormal Check Panel VGA cable DVI cable Panel Change Check PCBA CNT/B Change Check PCBA Check PCBA AD/B Change Power/B Change Check PCBA

Inverter/B Change

OSD/B Change Power/B Change

Inverter/B Change

Panel Change Adapter 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 AD/B Change AD/B Change Peculiar Smell Check PCBA Power/B Change

Inverter/B Change

Check PCBA

AD/B Change

Check Panel

Panel Change

Next Step

NG

TEST

Complete

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Defect Mode

Failure Analysis

Repair

Testing

" Panel Change" Should be Performed to Level 3 Repair

AD/B Change Power/B Change Power ON/OFF Abnormal No Power Turn Off Abnormal Check Wire Check Wire Check PCBA Check PCBA CNT/B Change Inverter/B OSD/B Change OSD Cable AC Power Change DC Power CNT Cable Change Check Adapter Adapter Change

AD/B Change LED Display Abnormal LED Off LED Dark Check PCBA Power/B Change Inverter/B OSD/B Change LED Abnormal LED Loss LED Flicker Check Wire OSD Cable DC Power CNT Cable Change Adapter Change

Next Step

NG

TEST

Completed

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Defect Mode

Failure Analysis

Repair

Testing

" Panel Change" Should be Performed to Level 3 Repair

Abnormal BIOS &OSD OSD Key Unavailable OSD Can't Input OSD Can't Read OSD No Display Check Wire OSD Jiggle OSD Display Abnormal Check PCB AD/B Change CNT/B Change Power/B Change Inverter/B OSD/B Change D-sub cable OSD cable VGA cable DVI cable Check BIOS BIOS Update

Abnormal Loudspeaker

Voice Loss Abnormal Loud L/R Abnormal No Voice L/R Same Volume Loudspeaker Noise Check Loudspeaker Check Wire Check PCBA

AD/B Change CNT/B Change Power/B Change Inverter/B Change OSD/B Change OSD Cable Change Loudspeaker Change

Next Step

NG

TEST

Completed

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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

AD/B Change Power/B Change CNT/B Change

Check Panel Display Flicker ((tapping ) Check Panel Check PCBA

Panel Change AD/B Change CNT/B Change Panel Change

DVI Signal Display Abnormal

Check PCB

AD/B Change EDID Update

Check EDID Code Check PCBA Check Wire Check Controller

TV Function Display Abnormal

TV /B Change AV Cable Change Remote controller Change

Next Step

NG

TEST

Complete

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Trouble Shooting Analysis

Check the information in this section to see if the problems can be solved before requesting repair. NoteThe 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. 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. Check the signal connection between the computer and LCD monitor. Check the computer image output resolution and frequency and compare the value with the preset values (Please refer to [Appendix-Display Mode]). Adjust Phase.

No Signal Input "Out of Range"

Fuzzy Image

Image too bright Image too dark

Adjust brightness and contrast by OSD.

Adjust brightness and contrast by OSD.

Irregular image

Check the signal connection between the computer and LCD monitor. Perform Auto Adjust.

Distorted image

Image is not centered

Reset the LCD monitor Take off extra accessories (such as signal extension cord). Use OSD Image Menu to adjust H_Position and V_Position. Check image size setting. Perform Auto Adjust.

Size is not appropriate

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

Uneven color

Use OSD Color Menu to adjust color setting.

Color too dark

Use OSD Color Menu to adjust color setting.

Dark area distorted

Use OSD Color Menu to adjust color setting.

White color is not white

Use OSD Color Menu to adjust color setting. 44

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ViewSonic Corporation

7. Recommended Spare Parts List

ViewSonic Model Number: VS10866 Serial No. Prefix: Q90

RECOMMENDED SPARE PARTS LIST (VA1912W-2)

ECR/ECN ViewSonic P/N A-00000458 B-00005599 B-00005600 B-00006040 C-00004281 C-00004282 C-00004284 C-00004285 CB-00000544 CB-00004287 CB-00004288 CB-00005742 DC-00000586 DC-00005602 DC-00005604 DC-00005606 HW-00000554 HW-00000556 HW-00000590 HW-00004042 HW-00006042 M-00000560 P-00000595 P-00004295 P-00004296 P-00005607 Ref. P/N 32E1818015 (AJ0A2T3A25) 35-D005694 35-D005166 27-D003247 40-D004255 40-D004257 40-D004250 40-D004259 32F2818004 32F3018003 32-D004533 32-D005773 7741999141 77-D008324 77-D008326 76-D008373 (AJ0A2T3A25) 42A9930008 42A9990005 42A9930013 42-D000649 42A9940007 7345511002 7841919921 78-D004392 78-D004388 78-D008325 Location

Item 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

Description Power Code, UL, SVT#18/3C, 75C, LP-30B+LS-13, L=1830+/Accessories: 50mm, Black, Linetek, 18AWG, No Bag, Green I PC Board Assembly: PCBA for , A190A2-A02-T, A190A2-A02-H-S1, 1206-04, Rev.04, ODM, Green II PCBA for , A190A2-H, A190A2-H-K3, 106-02, Rev.02, USI/ITC, ODM, Green II 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 Jiangsu_Adaptor, RoHS Bezel Assy, A190A2-H05, ABS PA757N, Silver(Pantone877C), Cabinets: Fuking Rear Assy, A190A2-H05, ABS PA757N, Black(J91A11B5), Fuking Cover Hinge, A190A2-H05, ABS PA757N, Black(J91A11B5), Fuking Seat Assy, A190A2-H05, ABS PA757N, Black(J91A11B5), Hontech Precision Audio Cable, A150X2, 18AWG, 180cm, Black, JCE, Green I Accessory Cable, D-Sub, BLACK, Johnson Components & Equipments, A150X2, Green I FFC, A190A2-H05, 15 Pins, Tennsure/Young Shin, L=108.5 FFC, FFCX816, 36 Pins, Tennsure, package AL_Foil, Green II Label, Pallet Barcode Label, 75x40, A190E2-H03, VSC, Non Green Safety Label for , A190A2-H05, 120 mmx50 mm, Chang Huang, VSC_VA1912w-2, Green II Carton Label for , A190A2-H05, 76.2 mmx76.2 mm, Chang Huang, VSC_VA1912w-2, Green II MENU for A190E2-H05, Complex, 1C, Yi Ching, VSC_VA1912w2+Caution Card, Green II SCREW, M3, P=0.5 mm, L=4 mm, Pan Head, Phillips Cross Recess, Green I Screw, M3*P1.27*12, 5.5*2, Steel, Green I SCREW, M4, P=0.7 mm, L=15 mm, Pan Head, Phillips Cross Recess, Green I SCREW, M4, P=0.7 mm, L=8 mm, Round Head, Phillips Cross Recess, plate color Zn, Screw_with_Washer, Shye Ching/Hama Naka Motogawa, head D8, Green I SCREW, M4, P=0 mm, L=11.8 mm, Hexagon Stand Off, Socket, Green I Tape, Security Tape, OPP, L900xW50x0.045mm, VSC, Non Green Bag, 570 mmx600 mmx0.13 mm, White, Non Green Cushion, A190A2-T05, EPS, WHITE, 450 mmx160 mmx145 mm, Sing Home, PS FOAM (Left), Green II Cushion, A190A2-T05, EPS, WHITE, 450 mmx160 mmx145 mm, Sing Home, PS FOAM (Right), Green II Carton, A190A2-H05, 538 mmx158 mmx470 mm, Chen Ti Paper, VSC_VA1912w-2, Green II

Rev: 1b

Universal number#

Q'ty 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2000 2000 2000 2000 2000 1 1 1 1 1

Cables:

Documentation:

Hardware:

Miscellaneous: Packing Material:

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.

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Item 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

Description Power Cord 0.75mm2, 3C, Accessories: PC Board Assembly: Audio Board (Rev.02) Power Supply Board, Ver:0F Main Board - A190A2-A02-T, A190A2-A02-T-S1,Rev.04 Front Panel, Bezel Assy Cabinets: Back Cover Cover Hinge Base Assembly Audio Cable, A150X2, 18AWG, 180cm, Black Cables: Accessory Cable, D-Sub Flat Cable, (FFC, A190A2-H05) Flat Cable FFCX816,36 Safety Label 120 mmx50 mm Ver.3 Documentation: Carton Label 76.2 mmx76.2 mm SN Label 50 mmx25 mm User's Guide MENU Complex, 1C SCREW, M3, P=0.5 mm, L=4 mm Hardware: Screw, M3*P1.27*12, 5.5*2, Steel SCREW, M4, P=0.7 mm, L=15 mm SCREW, M4, P=0.7 mm, L=8 mm SCREW, M4, P=0 mm, L=11.8 mm Tape, Security Tape, OPP, L900xW50x0.045mm Miscellaneous: PE Bag, 570 mmx600 mmx0.13 mm Packing Material: FOAM (Left) FOAM (Right) Generic Foam Set Generic Box Craft Box 538 mmx158 mmx470 mm

ViewSonic Model Number: VS10866 Serial No. Prefix: QBM

RECOMMENDED SPARE PARTS LIST (VA1912WB-2)

ECR/ECN ViewSonic P/N A-00002058 B-00005600 B-00006039 B-00006727 C-00004276 C-00004277 C-00004279 C-00004280 CB-00000544 CB-00004287 CB-00004288 CB-00005742 DC-00008016 DC-00008020 DC-00008021 DC-00008022 HW-00000553 HW-00000556 HW-00000590 HW-00004042 HW-00006041 M-00000560 P-00000595 P-00004295 P-00004296 P-00001347 P-00002515 P-00008015 Ref. P/N 32E1818013 35-D005166 27-D003247 35-D008185 40-D004254 40-D004253 40-D004258 40-D004256 32F2818004 32F3018003 32-D004533 32-D005773 77-D012194 77-D011732 77-D011737 76-D011747 42A9930008 42A9990005 42A9930013 42-D000649 42A9940007 7345511002 7841919921 78-D004392 78-D004388 30833 20653 78-D011688 Location

Rev: 1a

Universal number#

Q'ty 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2000 2000 2000 2000 2000 1 1 1 1

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

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Item 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54

ViewSonic Model Number: VS10866 Rev: 1b Serial No. Prefix: Q90

ViewSonic P/N E-00005747 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A HW-00000533 HW-00006041 N/A HW-00004042 N/A B-00006039 N/A C-00005686 B-00005599 CB-00005742 CB-00000544 CB-00004287 A-00002058 HW-00000590 HW-00000555 HW-00000556 C-00004284 C-00004282 C-00004281 CB-00004288 B-00005600 C-00004283 PL-00006048 DC-00005602 N/A HW-00002076 N/A P-00000595 DC-00000586 M-00000560 N/A N/A N/A DC-00005603 N/A N/A C-00004285 P-00004295 P-00004296 N/A DC-00005604 P-00005607 DC-00005605

BOM LIST (VA1912W-2)

Ref. P/N Description Location MJ0A10AK01 19" Wide Semi Product,A190A2,1440X900,TN 36X8636401 Driver IC,Scan,HX8636APD400(TSMC),300Channel,,RoHS,Green I L3J009XXXX 19" wide PS TN Asahi 0.7mm glass Cr BM(Panel Base) Polarizer,TFT,Degree 135,414 mmx259.7 mmx0.215 mm,NWF-LESEG,M190A1,Green 74-D002212 I Polarizer,CF,Degree 135,415.84 mmx262.15 mmx0.215 mm,NWF74-D002213 LESEGAGS1,M190A1,Green I 73-C000047 ACF,COG,AC-8405Z-23 1.5mmX100M,100000 mmx1.5 mm,COG-ACF,Green I 7344191017 ACF,AC-4251FY-16,100M/RL,Green I Driver IC,COF,Data,M190A1-L01,HX8018-A050CBAK,Reel,6 36-D002378 bit,432Channel,RoHS,Green I 73-D002676 ACF,PCB,AC-9825R-35,100000 mmx1.5 mm,PCB-ACF,Green I 35-D004361 PCBA for ,A190A2-H,A190A2-A02-H-X,1206-01,Rev.01,Green I 7349951002 Silicone,TORAY/-9187L,330g 42A9930008 SCREW,M3,P=0.5 mm,L=4 mm,Pan Head,Phillips Cross Recess,Green I 42A9940007 SCREW,M4,P=0 mm,L=11.8 mm,Hexagon Stand Off,Socket,Green I 41-D000643 Metal Frame Front,M190A1-L01/A190A2/M190A1-L03,SECC 0.6t,19"wide SCREW,M4,P=0.7 mm,L=8 mm,Round Head,Phillips Cross Recess,plate color 42-D000649 Zn,Screw_with_Washer,head D8,Green I Conductive Tape,PET+Adhesive,409 mmx58.55 mmx0.05 73-D002886 mm,Mylar_Cover_PcbaX_a190a2,Green I Lips With Audio,DAC-12M030 A,Ver:0F,5 V/3 A,12 V/0.7 A,I TYPE,7 mA,1710 27-D003247 V,RoHS 44-D003584 Backlight Unit,A190A2,Green I 41-D003772 Cover AD Assy,A190A2,SECC,without Dvi-D Hole,Green II 35-D005694 PCBA for ,A190A2-A02-T,A190A2-A02-H-S1,1206-04,Rev.04,ODM,Green II 32-D005773 FFC,FFCX816,36 Pins,package AL_Foil,Green II 32F2818004 Audio Cable,A150X2,18AWG,180cm,Black,JCE,Green I 32F3018003 Accessory Cable,D-Sub,BLACK,A150X2,Green I Power Cord,CCC,300/500V,0.75mm2,3C,PC-323+COC-01,L=1830+/32E1818013 50mm,Black,Linetek,18AWG,No Bag,Green I 42A9930013 SCREW,M4,P=0.7 mm,L=15 mm,Pan Head,Green I 42A9930014 Screw,M3*P0.5*6,Green I 42A9990005 Screw,M3*P1.27*12,5.5*2,Steel,Green I 40-D004250 Cover Hinge,A190A2-H05,ABS PA757N,Black(J91A11B5) 40-D004257 Rear Assy,A190A2-H05,ABS PA757N,Black(J91A11B5) 40-D004255 Bezel Assy,A190A2-H05,ABS PA757N,Silver(Pantone877C) 32-D004533 FFC,A190A2-H05,15 Pins,L=108.5 35-D005166 PCBA for ,A190A2-H,A190A2-H-K3,106-02,Rev.02,ODM,Green II 40-D004252 Stand Assy,A190A2-H05,ABS PA757N,Black(J91A11B5) 73-D005900 Panel Protector Film,A190A2-H05,XG-536 T=0.1,With_Print,Green II 77-D008324 Safety Label for ,A190A2-H05,120 mmx50 mm,VSC_VA1912w-2,Green II 77-D008330 SN Label for ,A190A2-H05,50 mmx25 mm,VSC_VA1912w-2 for China,Green II 7841595111 Corner Protector,paper,50 mmx50 mmx1850 mm,Green I 7841595191 Separator,(AA),1120*820*11mm,A150X2-T01,Non Green 7841919921 Bag,570 mmx600 mmx0.13 mm,White,Non Green 7741999141 Label,Pallet Barcode Label,75x40,A190E2-H03,VSC,Non Green 7345511002 Tape,Security Tape,OPP,L900xW50x0.045mm,VSC,Non Green 77-D000114 Customer Label,A170E1-H0G,180 mm,100 mm,Green I 77-D000118 Customer Label,A170E1-H0G,130 mm,80 mm,Green I 78-D000275 Warranty Card,A170E1-H0G,143 mmx210 mm,VSC_VA712,Green I 77-D000576 Carton Label for ,A190E2-H06,20 mmx20 mm,VSC_VA912_for Europe,Green I Customer Label for ,A170E1-H0G,15 mmx15 mm,QC Pass Label_VSC_for 77-D001323 China,Green I 78-D001492 Pallet,A150X2-T01,Wooden,1150 mmx840 mmx138 mm,Green I 40-D004259 Seat Assy,A190A2-H05,ABS PA757N,Black(J91A11B5) Cushion,A190A2-T05,EPS,WHITE,450 mmx160 mmx145 mm,PS FOAM (Left),Green 78-D004392 II Cushion,A190A2-T05,EPS,WHITE,450 mmx160 mmx145 mm,PS FOAM (Right),Green 78-D004388 II 79-D004425 Shipping Package Information for ,A190A2-H05,ViewSonic 77-D008326 Carton Label for ,A190A2-H05,76.2 mmx76.2 mm,VSC_VA1912w-2,Green II 78-D008325 Carton,A190A2-H05,538 mmx158 mmx470 mm,VSC_VA1912w-2,Green II 76-D008375 MENU for A190E2-H05,Complex,1C,VSC_VA1912w-2,CD-ROM,Green II

Universal number#

Q'ty 1 3 1 1 1 0.00168 0.0044 10 0.0044 1 0.4 16 2 1 1 1 1 1 1 1 2 1 1 1 4 4 2 1 1 1 1 1 1 1 1 1 1 0.025 1 0.021 0.3 1 1 1 1 1 0.02 1 1 1 1 1 1 1

ViewSonic Corporation

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Item 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

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

ViewSonic P/N E-00005747 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A HW-00000553 HW-00006041 N/A

BOM LIST (VA1912WB-2)

16 17 18 19 20 21 22 23 24 25

HW-00004042 N/A B-00006039 N/A C-00005686 B-00006727 CB-00005742 N/A CB-00000544 CB-00004287

26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42

A-00002058 N/A HW-00000590 HW-00000555 HW-00000556 C-00004279 C-00004277 C-00004276 CB-00004288 B-00005600 C-00004278 PL-00006048 DC-00008016 DC-00008021 HW-00002076 N/A P-00000595

Ref. P/N Description Location MJ0A10AK01 19" Wide Semi Product, A190A2, 1440X900, TN Driver IC, Scan, HX8636APD400(TSMC), 300Channel, , 36X8636401 RoHS, Green I L3J009XXXX 19" wide PS TN Asahi 0.7mm glass Cr BM(Panel Base) Polarizer, TFT, Degree 135, 414 mmx259.7 mmx0.215 74-D002212 mm, NWF-LESEG, M190A1, Green I Polarizer, CF, Degree 135, 415.84 mmx262.15 74-D002213 mmx0.215 mm, NWF-LESEGAGS1, M190A1, Green I ACF, COG, AC-8405Z-23 1.5mmX100M, 100000 73-C000047 mmx1.5 mm, COG-ACF, Green I 7344191017 ACF, AC-4251FY-16, 100M/RL, Green I Driver IC, COF, Data, M190A1-L01, HX801836-D002378 A050CBAK, Reel, 6 bit, 432Channel, RoHS, Green I ACF, PCB, AC-9825R-35, 100000 mmx1.5 mm, Hitachi 73-D002676 Chemical(), PCB-ACF, Green I PCBA for , A190A2-H, A190A2-A02-H-X, 1206-01, 35-D004361 Rev.01, Green I 7349951002 Silicone, TORAY/-9187L, 330g Olympic, 19"W, Function BOM, D-sub+Audio, Morning PJ0AFT0Q04 Star, TSUM17AK SCREW, M3, P=0.5 mm, L=4 mm, Pan Head, Phillips 42A9930008 Cross Recess, Green I SCREW, M4, P=0 mm, L=11.8 mm, Hexagon Stand Off, 42A9940007 Socket, Green I Metal Frame Front, M190A1-L01/A190A2/M190A141-D000643 L03, SECC 0.6t, 19"wide SCREW, M4, P=0.7 mm, L=8 mm, Round Head, Phillips Cross Recess, plate color Zn, Screw_with_Washer, head 42-D000649 D8, Green I Conductive Tape, PET+Adhesive, 409 mmx58.55 73-D002886 mmx0.05 mm, Mylar_Cover_PcbaX_a190a2, Green I Lips With Audio, DAC-12M030 A, Ver:0F, 5 V/3 A, 12 27-D003247 V/0.7 A, I TYPE, 7 mA, 1710 V, RoHS 44-D003584 Backlight Unit, A190A2, Green I Cover AD Assy, A190A2, SECC, without Dvi-D Hole, 41-D003772 Green II PCBA for , A190A2-A02-T, A190A2-A02-T-S1, 120835-D008185 05, Rev.04, Green II 32-D005773 FFC, FFCX816, 36 Pins, package AL_Foil, Green II Olympic, 19", Accessory BOM, D-sub+Audio, China 3 PJ0EACS000 pin, Black, Power built-in;RoHS Audio Cable, A150X2, 18AWG, 180cm, Black, JCE, 32F2818004 Green I 32F3018003 Accessory Cable, D-Sub, BLACK, A150X2, Green I Power Cord, CCC, 300/500V, 0.75mm2, 3C, PC323+COC-01, L=1830+/-50mm, Black, Linetek, 32E1818013 18AWG, No Bag, Green I Olympic, 19"W, ID BOM, D-sub+Audio, China, Black, PJ0AI15100 VSC, VA1912wb-2 42A9930013 SCREW, M4, P=0.7 mm, L=15 mm, Pan Head, Green I 42A9930014 Screw, M3*P0.5*6, Green I 42A9990005 Screw, M3*P1.27*12, 5.5*2, Steel, Green I 40-D004258 Cover Hinge, A190A2-H05, ABS PA757N, Green I 40-D004253 Rear Assy, A190A2-H05, ABS PA757N, Green I 40-D004254 Bezel Assy, A190A2-H05, ABS PA757N, Green I 32-D004533 FFC, A190A2-H05, 15 Pins, L=108.5 PCBA for , A190A2-H, A190A2-H-K3, 106-02, Rev.02, 35-D005166 ODM, Green II 40-D004251 Stand Assy, A190A2-H05, ABS PA757N, Green I Panel Protector Film, A190A2-H05, XG-536 T=0.1, 73-D005900 With_Print, Green II Safety Label for , A190A2-H05, 120 mmx50 mm, 77-D012194 VA1912wb Ver.3, Green II SN Label for , A190A2-H05, 50 mmx25 mm, 77-D011737 _VA1912wb-2 for Analog for China, Green II Corner Protector, paper, 50 mmx50 mmx1850 mm, Green 7841595111 I Separator, (AA), 1120*820*11mm, A150X2-T01, 7841595191 Non Green 7841919921 Bag, 570 mmx600 mmx0.13 mm, White, Non Green

Universal number#

Q'ty 1 3 1 1 1 0.00168 0.0044 10 0.0044 1 0.4 1 16 2 1 1 1 1 1 1 1 2 1 1 1 1 1 4 4 2 1 1 1 1 1 1 1 1 1 1 0.025 1

ViewSonic Corporation

48

Confidential - Do Not Copy VA1912w-2_VA1912wb-2

Item 43 44 45 46 47 48 49 50 51 52 53 54 55 56

ViewSonic P/N DC-00000586 M-00000560 N/A N/A N/A DC-00008020 N/A N/A C-00004280 P-00004295 P-00004296 N/A P-00008015 DC-00008022

Ref. P/N 7741999141 7345511002 77-D000114 77-D000118 78-D010933 77-D011732 77-D000114 78-D001492 40-D004256 78-D004392 78-D004388 79-D004425 78-D011688 76-D011747

Description Location Label, Pallet Barcode Label, 75x40, A190E2-H03, VSC, Non Green Tape, Security Tape, OPP, L900xW50x0.045mm, VSC, Non Green Customer Label, A170E1-H0G, 180 mm, 100 mm, Green I Customer Label, A170E1-H0G, 130 mm, 80 mm, Green I Warranty Card, A170E1-H0G, 143 mmx210 mm, VA712 Ver.2, Green II Carton Label for , A190A2-H05, 76.2 mmx76.2 mm, VA1912wb-2 for Analog, Green II Customer Label for , A170E1-H0G, , Green IVA712 Ver.2, Green II Pallet, A150X2-T01, Wooden, 1150 mmx840 mmx138 mm, Green I Seat Assy, A190A2-H05, ABS PA757N, Green I Cushion, A190A2-T05, EPS, WHITE, 450 mmx160 mmx145 mm, PS FOAM (Left), Green II Cushion, A190A2-T05, EPS, WHITE, 450 mmx160 mmx145 mm, PS FOAM (Right), Green II Shipping Package Information for , A190A2-H05, ViewSonic Carton, A190A2-H05, 538 mmx158 mmx470 mm, VA1912wb-2 for Analog, Green II MENU for A190A2-H05, Complex, 1C, VA1912wb-2, Green II

Universal number#

Q'ty 0.021 0.3 1 1 1 1 1 0.02 1 1 1 1 1 1

ViewSonic Corporation

49

Confidential - Do Not Copy VA1912w-2_VA1912wb-2

8. Exploded Diagram and Exploded Parts List

ViewSonic Model Number: VS10866 Rev: 1b Serial No. Prefix: Q90

Item 1 2 3 4 5 6 7 8 9 10 11 12 13 14 ViewSonic P/N N/A N/A N/A HW-00000533 B-00006039 B-00005599 HW-00000533 C-00005686 C-00004281 C-00004282 N/A C-00004283 C-00004284 C-00004285 Ref. P/N 44-D003584 L3J009XXXX 41-D000643 42A9930008 27-D003247 35-D005694 42A9930008 41-D003772 40-D004255 40-D004257 42A9230001 40-D004252 40-D004250 40-D004259

EXPLODED PARTS LIST (VA1912W-2)

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

Q'ty 1 1 1 2 1 1 7 1 1 1 4 1 1 1

Item 1 2 3 4 5 6 7 8 9 10 11 12 13 14 ViewSonic P/N N/A N/A N/A HW-00000553 B-00006039 B-00005599 HW-00000553 C-00005686 C-00004281 C-00004282 N/A C-00004283 C-00004284 C-00004285 Ref. P/N 44-D003584 L3J009XXXX 41-D000643 42A9930008 27-D003247 35-D005694 42A9930008 41-D003772 40-D004255 40-D004257 42A9230001 40-D004252 40-D004250 40-D004259

EXPLODED PARTS LIST (VA1912WB-2)

Description BACKLIGHT UNIT PANEL ASSY BACKLIGHT FRONT COVER SCREW M3*4L POWER PCB ASSY AD PCB ASSY SCREW M3*4L AD COVER BEZEL ASSY REAR ASSY SCREW D3*8L STAND ASSY COVER HINGE SEAT ASSY

Description BACKLIGHT UNIT PANEL ASSY BACKLIGHT FRONT COVER SCREW M3*4L POWER PCB ASSY AD PCB ASSY SCREW M3*4L AD COVER BEZEL ASSY REAR ASSY SCREW D3*8L STAND ASSY COVER HINGE SEAT ASSY

Q'ty 1 1 1 2 1 1 7 1 1 1 4 1 1 1

ViewSonic Corporation

Model Title Date Rev:

ViewSonic Corporation

50

Confidential - Do Not Copy VA1912w-2_VA1912wb-2

ViewSonic Model Number: VS10866 Rev: 1b

Item 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ViewSonic P/N N/A P-00000595 P-00004295 P-00004296 N/A N/A N/A CB-00004287 CB-00000544 N/A N/A N/A N/A C-00004285 N/A Ref. P/N VA1912W-2 7841919921 78-D004392 78-D004388 Different region (refer to BOM) Different region (refer to BOM) Different region (refer to BOM) 32F3018003 32F2818004 N/A Different region (refer to BOM) Different region (refer to BOM ) Different region (refer to BOM) 40-D004259 Different region (refer to BOM)

PACKING PART LIST ( VA1912W-2 )

Location LCD Monitior PE Foam Bag PS Foam (Left) PS Foam(Right) Carton Power Cord Power Cord Monitor Cable Audio Cable DVI Cable (N/A) Menu (Quick Setup) Menu (CD-ROM) Warranty Registration card Seat Customer Label Q'ty 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

ViewSonic Model Number: VS10866 Rev: 1a

Item 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ViewSonic P/N N/A P-00000595 P-00004295 P-00004296 N/A N/A N/A CB-00004287 CB-00000544 N/A N/A N/A N/A C-00004285 N/A

PACKING PART LIST ( VA1912WB-2 )

Ref. P/N VA1912W-2 7841919921 78-D004392 78-D004388 Different region (refer to BOM) Different region (refer to BOM) Different region (refer to BOM) 32F3018003 32F2818004 N/A Different region (refer to BOM) Different region (refer to BOM ) Different region (refer to BOM) 40-D004259 Different region (refer to BOM) DESCRIPTION LCD Monitior PE Foam Bag PS Foam (Left) PS Foam(Right) Carton Power Cord Power Cord Monitor Cable Audio Cable DVI Cable (N/A) Menu (Quick Setup) Menu (CD-ROM) Warranty Registration card Seat Customer Label Q'ty 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

ViewSonic Corporation

51

Confidential - Do Not Copy VA1912w-2_VA1912wb-2

9. Block Diagram

OSD Key Pad / Audio Out

Speaker

3.3V 5V Main Board D-sub Analog Video LDO 12V Signal LCD Module

DC-5V

DC-12V

AC Power Audio In

LIPS

Backlight

ViewSonic Corporation

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Confidential - Do Not Copy VA1912w-2_VA1912wb-2

B3 DSUB_DET SOG VGADDCA_DAT V5A DDCA_CLK RIN VGA_5V GNDR GIN GNDG BIN GNDB V5A_ESD HSYNC VSYNC B4 DSUB_DET SOG DDCA_DAT DDCA_CLK RIN GNDR GIN GNDG BIN GNDB HSYNC VSYNC

B6 DSUB_DET SOG DDCA_DAT DDCA_CLK RIN GNDR GIN GNDG BIN GNDB HSYNC VSYNC BR2N BR2P BR1N BR1P BR0N BR0P BG2N BG2P BG1N BG1P BG0N BG0P BB2N BB2P BB1N BB1P BB0N BB0P FR2N FR2P FR1N FR1P FR0N FR0P FG2N FG2P FG1N FG1P FG0N FG0P

VGA_5V

BR2N BR2P BR1N BR1P BR0N BR0P BG2N BG2P BG1N BG1P BG0N BG0P BB2N BB2P BB1N BB1P BB0N BB0P FR2N FR2P FR1N FR1P FR0N FR0P FG2N FG2P FG1N FG1P FG0N FG0P FB2N FB2P FB1N FB1P FB0N FB0P FCKN FCKP FSTH BCKN BCKP BSTH STB POL CPV STV OE

B8

PANEL_INTERFACE

BR2N BR2P BR1N BR1P BR0N BR0P BG2N BG2P BG1N BG1P BG0N BG0P BB2N BB2P BB1N BB1P BB0N BB0P FR2N FR2P FR1N FR1P FR0N FR0P FG2N FG2P FG1N FG1P FG0N FG0P FB2N FB2P FB1N FB1P FB0N FB0P FCKN FCKP FSTH BCKN BCKP BSTH STB POL CPV STV OE

V5A_ESD

V5A_ESD V5A DVI_5V B1

DDCD_CLK DDCD_DAT R+ RDVI G+ GDVI_5V B+ BCLK+ CLK-

DDCD_CLK DDCD_DAT R+ RG+ GB+ BCLK+ CLK-

DDCD_CLK DDCD_DAT R+ RG+ GB+ BCLK+ CLK-

OSD

LED_OR LED_GL TURBO MENU LEFT RIGHT AUTO POWER V33C

LED_OR LED_GL TURBO MENU LEFT RIGHT AUTO POWER

LED_OR LED_GL TURBO MENU LEFT RIGHT AUTO POWER AUDIO_ON INV_ON/OFF DCDC_ON/OFF PANEL_ON/OFF VCM_PWM VOL_ADJ INV_ADJ AUD_DET

SCALER

FB2N FB2P FB1N FB1P FB0N FB0P FCKN FCKP FSTH BCKN BCKP BSTH STB POL CPV STV OE

AUDIORAUDIOR+ AUDIOLAUDIOL+

AUDIORAUDIOR+ AUDIOLAUDIOL+ B5

AUDIO_ON INV_ON/OFF DCDC_ON/OFF PANEL_ON/OFF VCM_PWM VOL_ADJ INV_ADJ AUD_DET DVI_5V

B2

VCTRL V5A AUDIOL+ AUDIOLAUDIOR+ AUDIORAUD_DET AUD_DET V33C V18C V33P V5A DVI_5V VGA_5V Vref Vref V12A

VCTRL V12A V18C V33C Vref V5A

GVOFF

GVOFF

GVOFF

INVERTER I/F

VCM_PWM PANEL_ON/OFF DCDC_ON/OFF V12A V33P V5A

VCM_PWM PANEL_ON/OFF DCDC_ON/OFF V12A V33P V5A

VOL_ADJ AUDIO_ON LED_GL

VOL_ADJ

V33P

POWER

V33C V18C

V5A V33C V12A INV_ON/OFF INV_ADJ V12A INV_ON/OFF INV_ADJ

ViewSonic Corporation

Model Title Date

System Diagram

Rev:

53

ViewSonic Corporation

Confidential - Do Not Copy

VA1912w-2_VA1912wb-2

VCC33 L10 VDVI VMPLL VPLL C68 AVDD VDPP VDDC V33C

VDPP VDPP1

1

2

1

TP

0603/100n/25V/7

14 67 95 103 115

U1

GND

12 97 117 68

C92 0603/100n/25V/7 GND

C55 1206/10u/16V/X/PbF

44 50

4 34

52

60

C56 0603/100n/25V/7

C57 0603/100n/25V/7

C58 0603/100n/25V/7

C59 0603/100n/25V/7

C60 0603/100n/25V/7

AVDD_MPLL AVDD_MPLL

AVDD_PLL

AVDD_ADC

AVDD_DVI AVDD_DVI

VDDC VDDC VDDC VDD_OTP

VDDP VDDP VDDP VDDP VDDP

VCTRL

11 107 108 109 110 111 112 113 114 98 99 100 101 105 106 89 90 91 92 93 94 9 10 15 16 17 18 2 3 5 6 7 8 118 119 120 121 122 123 124 125 126 127 128 1 80 81 88 87 86 85 84 83 82 75 74 26 35 69 78 79 20 21 22 23 24 25 27 28 29 30 31 77 76

R106 0603/10K/5% R107 0603/10K/5% R103 R104

VCTRL GND 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 FCKP FCKN BCKP BCKN BR0N BR0P BR1N BR1P BR2N BR2P BSTH FSTH GVOFF STB STV CPV GPO51 OE 1 TP POL 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 FCKP FCKN BCKP BCKN BR0N BR0P BR1N BR1P BR2N BR2P BSTH VCC33 VCC33 FSTH GVOFF STB STV CPV OE R122 0603/10K/5%/open R111 0603/10K/5% L11

Close to respective power Pins

RIN GNDR GIN GNDG SOG BIN GNDB HSYNC VSYNC DDCA_DAT DDCA_CLK R+ RG+ GB+ BCLK+ CLKDDCD_DAT DDCD_CLK

RIN GNDR GIN GNDG SOG BIN GNDB HSYNC VSYNC DDCA_DAT DDCA_CLK

59 58 56 55 57 54 53 63 64 65 66

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

NC/LVACKP/NC NC/LVACKM/NC RA1P/LVA2P/RA2 RA1N/LVA2M/RA3 RA2P/LVA1P/RA4 RA2N/LVA1M/RA5 RA3P/LVA0P/RA6 RA3N/LVA0M/RA7

VDVI

VDVI1

1

2

1

TP

TP

R+ 39 R40 G+ 42 G43 B+ 45 B46 CLK+ 48 CLK- 49 DDCD_DAT 36 DDCD_CLK 37

GA1P/NC/GA2 GA1N/NC/GA3 GA2P/NC/GA4 GA2N/NC/GA5 GA3P/LVA3P/GA6 GA3N/LVA3M/GA7 BA1P/NC/BA2 BA1N/NC/BA3 BA2P/NC/BA4 BA2N/NC/BA5 BA3P/NC/BA6 BA3N/NC/BA7 RB1P/NC/RB2 RB1N/NC/RB3 RB2P/NC/RB4 RB2N/NC/RB5 RB3P/NC/RB6 RB3N/NC/RB7 GB1P/NC/GB2 GB1N/NC/GB3 GB2P/NC/GB4 GB2N/NC/GB5 GB3P/NC/GB6 GB3N/NC/GB7

C65 1206/10u/16V/X/PbF

C66 0603/100n/25V/7

C67 0603/100n/25V/7

GND

Close to respective power Pins

VMPLL

L12 1

HCB2012KF-420T40 2

VMPLL1

1

TP

C74 1206/10u/16V/X/PbF

AVDD VCC33

R124 0603/390R/1% 51

REXT REFP REFM

C75 0603/100n/25V/7

62

C91 0603/100n/25V/7

GND L13

Close to respective power Pins

VPLL VPLL1 VDDC VCC18 L17 VDDC1

61

V5A WP WP 0603/100n/25V/7 C90 C80 1206/10u/16V/X/PbF GND

U2

TSUM57AK

SDO CE# SCK SDI 2 1 6 5 70 71 72 73 SDO SCZ SCK SDI

1

2

1

TP

8 7 3 4

VDD HOLD# WP# VSS

Pm25LV512

19

R116 0603/10K/5%

RST

CLKAP/LVB3P/LHSYNC CLKAN/LVB3M/LVSYNC CLKBP/LVBCKP/LCK_ODD CLKBN/LVBCKM/LDE NC/LVB2P/NC NC/LVB2M/NC BB1P/LVB1P/BB2 BB1N/LVB1M/BB3 BB2P/LVB0P/BB4 BB2N/LVB0M/BB5 BB3P/NC/BB6 BB3N/NC/BB7 ESP OSP GPO0 GPO1 GPO2 GPO3 GPO4 GPO5 GPO6 GPIO_P22 GPIO_P23 GPIO_P03

C76 1206/10u/16V/X/PbF

C77 0603/100n/25V/7

V18C

1

2

1

TP

C84 1206/4.7u/16V/Y

Close to respective power Pins

GND AVDD L14 AVDD1 GND

C85 0603/100n/25V/7

C86 0603/100n/25V/7

C87 0603/100n/25V/7

Close to respective power Pins

1 TP

1

VCC33

2

32

C94 0603/22p/50V/N Y1 14.31818MHz

XIN

R113 0603/10K/5%

33

GND GND VCC33 R118 R119 R0603/OPEN R0603/OPEN C93 0603/22p/50V/N

XOUT

C78 1206/10u/16V/X/PbF V12A V5A GND

C79 0603/100n/25V/7

POL AUDIO_ON

Close to respective power Pins

0603/20K/1%/OPEN R79 DVI

R210

R114 0603/10K/5% R115 0603/10K/5%

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 DDCROM_SCL DDCROM_SDA

INV_ON/OFF INV_ADJ SAR1 R110 SAR2 R117 R121 LED_GL LED_OR R105 0603/100R/5% VCC33

DSUB

R112

VCM_PWM PANEL_ON/OFF

OPEN/R0603

102 104

MODE[0] MODE[1]

0603/30K/5%

GPIO_P16/PWM2 GPIO_P15/PWM0 PWM2/GPIO_P24 GPIO_P27/PWM1

0603/10K/5%/OPEN

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

AUD_DET AUTO POWER

R209

V5A

GND MENU LEFT RIGHT LED_GL LED_OR VOL_ADJ TURBO

DVI 0603/10K/5%

GND 0603/100R/5% 0603/100R/5% 0603/100R/5%

R120

0603/0R/5%/open R214

DVI_5V

C88 0603/100n/25V/7 DSUB GND VCC33 0603/0R/5%/open R213 DSUB_DET

GND

R108 0603/10K/5%

GND

R1000603/100R/5% R101 0603/100R/5%

C81 0603/100n/25V/7 U7 AT24C16AN-10SU-2.7/RoHS 8 VCC A0 1

13 38 41 47 96 116

R109 0603/10K/5%

GND GND GND GND GND GND

DCDC_ON/OFF

DCDC_ON/OFF

7 6 5

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

WP SCL SDA

A1 A2 GND

2 3 4

R102 1 0603/4.7K/0.1%/RoHS

3

Q7 MMBT3904-F

C89 0603/100n/25V/7

GND

GND VCC33 PIN RIGHT POWER AUTO LEFT MENU TURBO RIGHT +LEFT +POWER VOLTAGE 1.77V 1.24V 0.47V SAR11 1.77V 1.24V 0.47V GND SR1(1.77) SR2(0.93) GND GND SAR1 C152 C150 0805/10u/6.3V/5/open R127 0603/20K/1%/OPEN VCC33

2

U5

4

NC

VSS VDD

3 2 1

GND Vref VCC33

5

0805/10u/6.3V/5/open GND SAR2 R137 0603/20K/1%/OPEN C70 0603/10n/25V/7/RoHS R138 0603/23.2K/1%/OPEN RIGHT GND R139 POWER 0603/12.1K/1%/OPEN R140 AUTO 0603/3.3K/1%/OPEN

CD

OUT

TP

TP

SAR21 R67 0603/12.1K/1%/OPEN MENU

1

R128 0603/23.2K/1%/OPEN

RN5VD40AA/RoHS R212 0603/1K/5%

LEFT

ViewSonic Corporation

Model Title Date

1

R200 0603/10M/5%/RoHS/OPEN

WP

R201 0603/10M/5%/RoHS/OPEN

R134 TURBO 0603/3.3K/1%/OPEN

Scalar

Rev:

54

ViewSonic Corporation

Confidential - Do Not Copy

VA1912w-2_VA1912wb-2

0603/1K/5%/RoHS V33C R12 V33C R13 R14 1 0603/4.7K/5%/RoHS 0603/4.7K/5%/RoHS INV_ADJ 3 C8 0603/0.1u/25V/open Q2 2N7002/RoHS R10 1 2 R9

V33C 0603/10K/5%/RoHS

V5A1 V5A VIN_12V 1 1 TP VIN_12V1 TP INV_ON/OFF1 INV_ON/OFF 1 TP INV_ADJ1 INV_ON/OFF INV_ADJ 1 TP [GND_INV] GND LP2 LP3 LP4 FBMJ2125HS420/PbF FBMJ2125HS420/PbF FBMJ2125HS420/PbF

2

Q1 2N7002/RoHS 0603/1u/10V/Y/open

C7

3

0603/4.7K/5%/RoHS

GND

R11 0603/10K/5%/OPEN

V5A LP1 V5A + CP2 FBMJ2125HS420/PbF CP3 V5A GND

0603/10K/5%/RoHS

AUDIORAUDIOR+ AUDIOLAUDIOL+

0603/0R/5%/RoHS/OPEN

16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 CN4 Header2X8FR2.54

CP1 1206/10u/16V/5/RoHS UWT1E101MCL1GS/RoHS 1210/4.7u/25V/5/RoHS GND AUD_DET GND GND LP5 FBMJ2125HS420/PbF 2 1

GND_INV AUD_DET

R181 0603/10K/5%/RoHS

VIN_12V

VOL MUTE AUD_Shutdown R182 R22

TP0610K/PbF 2 V12A Q16 3 1 Q18 2 2N7002/RoHS 1 LED_GL C161 0603/100n/25V/Y/RoHS R183 0603/1K/5%/RoHS GND AUD_Shutdown GND GND 3 V12A

FP1 1 3216FF/1206/3A/RoHS

CP4 2 LV470M025E055R

CP5 CP6 1210/4.7u/25V/5/RoHS 1210/4.7u/25V/5/RoHS

GND MUTE

V5A

V5A

V5A

VOL_ADJ1 1 R19 0603/1K/5%/RoHS 1

VOL1 2 C4 OPEN/0603 0603/10K/5%/RoHS 3 R18 Q5 2 R17 OPEN/0603 C6 1206/10u/16V/5/RoHS C5 0603/100n/25V/7/RoHS VOL TP0610K/PbF Q3 3

R15 0603/10K/5%/RoHS

1

Low: MUTE OFF

1 AUDIO_ON C3 0603/100n/25V/Y/RoHS

Q4 2 GND 2N7002/RoHS

VOL_ADJ

1 2N7002/RoHS

R16 0603/1K/5%/RoHS

3

GND

GND MUTE R20 GND 0603/0R/5%/RoHS/OPEN

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Model Title Date

Inverter Interface

Rev:

55

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Confidential - Do Not Copy

VA1912w-2_VA1912wb-2

VGA_5V

1 0603/0R/5%/open

0603/0R/5%/open

DVI_5V

VCTRL R202 0603/51R/1% V18C V18C Q8

R1 R5

2

D7 BAV70W/open C160 0805/4.7u/16V/Y

3

1 3

V33C1

B E

GND C

4 2

H2907AS FBMJ2125HS420/PbF D9 1 2 B240A-F C42 1206/22u/16V/Y/RoHS Vref C43 0603/100n/25V/7/RoHS

L18 V5A

U4

1

2

R203 0603/2K/1% D35 1N4148WS-F

TP

3

GND

VIN

VOUT VOUT

LM1117MPX-3.3/RoHS 2 4

V18V1

V33C

V33C

(SCALER VCC)

C44 C45 0603/100n/25V/7/RoHS

1

1

GND R204

1206/22u/16V/Y/RoHS

0603/100R/1%

Heat-Sink

GND

V33P1

(POWER FOR SCALER)

L9 V5A

FBMJ2125HS420/PbF

U6

3

GND

VIN

VOUT VOUT

LM1117MPX-3.3/RoHS 2 4

1

TP

V33P

V33P

(Panel VCC)

C53 0603/100n/25V/7/RoHS

C50 1206/22u/16V/Y/RoHS

C51 0603/100n/25V/7/RoHS

1

C52 1206/22u/16V/Y/RoHS

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GND

Model Title Date

Power

Rev:

56

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Confidential - Do Not Copy

VA1912w-2_VA1912wb-2

TP

1

R35 DDCA_DAT 0603/0R/5%/OPEN 11 12 13 14 15 1 6 2 7 3 8 4 9 5 10 CN7 89263-6762 R25 R26 3 GND 1 R144 0603/0R/5%/OPEN R27 3 D24 1 BAV99W/RoHS 3 0603/100R/1% 0603/100R/1% 0603/100R/1% C123 C124 C125 0603/47n/16V/7/RoHS 0603/47n/16V/7/RoHS 0603/47n/16V/7/RoHS GNDR GNDG GNDB R21 R34 R23 R24 R78 R30 R29 0603/75R/1% 0603/75R/1% 0603/75R/1% 0603/56R/1% 0603/56R/1% 0603/56R/1% 0603/470R/1% C9 C10 C11 C15 0603/47n/16V/7/RoHS 0603/47n/16V/7/RoHS 0603/47n/16V/7/RoHS 0603/1n/16V/7 RIN GIN BIN SOG

D1

D2

0603/10p/varistor/OPEN 0603/10p/varistor/OPEN 2 2

1 D25 BAV99W/RoHS

D5 BAV99W/RoHS V5A_ESD 2 GND V5A_ESD

GND DDCA_CLK

C157 0603/100n/25V/X/RoHS

C158 0603/100n/25V/X/RoHS

C159 0603/100n/25V/X/RoHS

GND 2 HSI L20 D32 UDZSF-5.6B/PbF 1 0603/0R/5%/RoHS R55 0603/2.2K/5%/RoHS R57 0603/1K/1%/RoHS HSYNC

C128 C126 0603/33p/50V/N/RoHS 0603/33p/50V/N/RoHS/open

GND GND 2 VSI R66 D33 UDZSF-5.6B/PbF 1 0603/0R/5%/RoHS R129 0603/2.2K/5%/RoHS C100 GND R54 GND 0603/1K/1%/RoHS

VSYNC

C127 0603/33p/50V/N/RoHS/open HSYNC1 TP VSYNC1 TP DDCA_CLK DDCA_DAT DSUB_DET

1 1

HSYNC VSYNC

0603/220p/50V/N GNDGND GND

GND R64 R131 0603/100R/5%/RoHS 0603/100R/5%/RoHS

VGA_5V

L8 R133 BK1608LL121/PbF 0603/10R/5%/RoHS D29 0603220KV05T/RoHS D6 0603220KV05T/RoHS C129 0603/100n/25V/X/RoHS 1 2

2VGA_5V

V5A V5A D31 BAV70W/RoHS R68 R135 0603/10K/5%/RoHS 0603/10K/5%/RoHS C23 0603/100n/25V/7/RoHS 1 3 R136

D10 0603220KV05T/RoHS

D30 BZT52-C5V6S/RoHS 0603/3.9K/5%/RoHS R60 GND 0603/47K/5%/RoHS

GND

U15 1 2 3 4 NC VCC 8 VGA_5V NC VCLK 7 NC SCL 6 GND SDA 5 AT24C02-10TU-1.8/RoHS

GND

GND

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Model Title Date

VGA

Rev:

57

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Confidential - Do Not Copy

VA1912w-2_VA1912wb-2

V33C

5 6 7 8

RP46 0603*4/10K/5%/RoHS

5 6 7 8 4 3 2 1

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

4 3 2 1

Bead Array LP8,LP9,LP11=>modified RoHs CN3 MENU LEFT RIGHT TURBO AUTO POWER LP6 1 2 3 4 LP7 1 2 3 4

LED_O LED_G

8 BK32164M121 7 6 5 8 BK32164M121 7 6 5

L1 AUDIOR-

1

2

MPZ1608S221/RoHS L2

V33C V33C V33C R36 R62 0603/10K/5%/RoHS

AUDIOR+ CP7 CP8 0603*4/100n/25V/RoHS 0603*4/100n/25V/RoHS

1

2

15 14 13 12 11 10 9 8 7 6 5 4 3 2 1

HEADER 10_2/RoHS

4 3 2 1

4 3 2 1

MPZ1608S221/RoHS L3

5 6 7 8

5 6 7 8

R7

0603/1K/5%/RoHS/OPEN

AUDIOL-

1

2

GND

MPZ1608S221/RoHS L4

2

3 1

Q13 2N7002/RoHS/OPEN R3 0603/249R/1%/RoHS GND

TP0610K/PbF Q12

0603/0R/5%/RoHS

AUDIOL+ LED_OR C2 0603/100n/25V/Y/RoHS/OPEN GND GND

1

2

1 3 2

MPZ1608S221/RoHS

LED_O V33C V33C

R63 0603/10K/5%/RoHS

R2 0603/1K/5%/RoHS/OPEN R8

2

3

TP0610K/PbF Q14

1

Q15 2N7002/RoHS/OPEN

0603/0R/5%/RoHS

1 3 2

LED_GL

R4 0603/249R/1%/RoHS

C1 0603/100n/25V/Y/RoHS/OPEN

ViewSonic Corporation

GND LED_G GND

Model Title Date

OSD

Rev:

58

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Confidential - Do Not Copy

VA1912w-2_VA1912wb-2

VCC1 VCC

1

CN2 STV1

STV

1

FSTH FB2P FB2N FB1P FB1N FB0P FB0N FG2P FG2N FG1P FG1N FG0P FG0N FCKP FCKN STB POL FR2P FR2N FR1P FR1N FR0P FR0N V33P GND DCDC_ON/OFF1 L7 V33P FBMJ2125HS420/PbF VCC OE CPV STV OE CPV STV STB POL FSTH

CPV1 CPV

1

OE1 OE

1

STB1 STB

1

POL1 POL

1

PANEL_ON/OFF1 PANEL_ON/OFF 1

DCDC_ON/OFF

1

36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1

36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1

IL-FHR-F36S-HF/RoHS

C118 0603/100n/25V/X/RoHS VCM_PWM1 VCM_PWM

1

GND

CN1 GVOFF1 GVOFF

1

FSTH1 FSTH

BB2P BB2N BB1P BB1N BB0P BB0N BG2P BG2N BG1P BG1N BG0P BG0N BCKP BCKN BR2P BR2N BR1P BR1N BR0P BR0N BSTH BSTH GVOFF VCM_PWM DCDC_ON/OFF PANEL_ON/OFF

1

BSTH1

BSTH

1

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

X Board BA P/N GA P/N RA P/N

V5A GND V5A

GVOFF VCM_PWM DCDC_ON/OFF PANEL_ON/OFF

36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1

36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1

IL-FHR-F36S-HF/RoHS C119 1206/22u/16V/Y/RoHS C120 0603/100n/25V/7/RoHS

V12A GND V12A

C121 1206/4.7u/35V/Y/E

C122

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

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Model Title Date

Panel Interface

Rev:

59

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Confidential - Do Not Copy

VA1912w-2_VA1912wb-2

11. PCB Layout Diagrams

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Confidential - Do Not Copy VA1912w-2_VA1912wb-2

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Confidential - Do Not Copy VA1912w-2_VA1912wb-2

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Confidential - Do Not Copy VA1912w-2_VA1912wb-2

* 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 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 Excellent Good Fair Bad

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 Bad

C. Do you have any other opinions or suggestions regarding this service manual? Reader's basic dada: Name: Company: Add: Tel: 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 ([email protected])

Title:

Fax:

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Confidential - Do Not Copy VA1912w-2_VA1912wb-2

Information

VA1912w-2, VA1912wb-2 (VS10866) Service Manual

66 pages

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