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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 900@60Hz 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 ˝ 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 864@ 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*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 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
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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
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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