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Service Manual
ViewSonic VG921m-2
Model No. VS11313 19" Color TFT LCD Display

(VG921m-2_SM Rev. 1a Jan. 2007)

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

Copyright Copyright © 2007 by ViewSonic Corporation. All rights reserved. No part of this publication may be reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any language or computer language, in any form or by any means, electronic, mechanical, magnetic, optical, chemical, manual or otherwise, without the prior written permission of ViewSonic Corporation. Disclaimer ViewSonic makes no representations or warranties, either expressed or implied, with respect to the contents hereof and specifically disclaims any warranty of merchantability or fitness for any particular purpose. Further, ViewSonic reserves the right to revise this publication and to make changes from time to time in the contents hereof without obligation of ViewSonic to notify any person of such revision or changes. Trademarks Optiquest is a registered trademark of ViewSonic Corporation. ViewSonic is a registered trademark of ViewSonic Corporation. All other trademarks used within this document are the property of their respective owners.

Revision History
Revision
1a

SM Editing Date
12/20/2006

ECR Number

Description of Changes
Initial Release

Editor
Jamie Chang

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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 Block Diagram Schematic Diagrams PCB Layout Diagrams

1 3 6 13 14 34 36 37 47 55 58

10. Exploded Diagram and Exploded Parts List 11. Recommended Spare Parts List

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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) Disconnect the power plug from AC outlet if the product is not used for a long period of time. (5) If smoke, abnormal noise, or strange odor is present, immediately switch the LCD display off. (6) Do not touch the LCD panel surface with sharp or hard objects. (7) Do not place heavy objects on the LCD display, video cable, or power cord. (8) Do not use abrasive cleaners, waxes or solvents for your cleaning. (9) Do not operate the product under the following conditions: - Extremely hot, cold or humid environment. - Areas susceptible to excessive dust and dirt. - Near any appliance generating a strong magnetic field. - Place 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. Power Supply Requirements The external AC power operating range shall be from 90 to 264Vac 5. LCD Module Handling Precautions 5.1. Handling Precautions (1) Since front polarizer is easily damaged, pay attention not to scratch it. (2) Be sure to turn off power supply when inserting or disconnecting from input connector. (3) Wipe off water drop 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 insure human earth when handling. (7) Do not open nor modify the Module Assembly. (8) Do not press the reflector sheet at the back of the module to any directions. (9) In case if a Module has to be put back into the packing container slot after once it was taken out from 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 nor 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 nor bend the TFT Module even momentary. At designing the enclosure, it should be taken into consideration that no bending/twisting forces are applied to the TFT Module from outside. Otherwise the TFT Module may be damaged. (12) Cold cathode fluorescent lamp in LCD contains a small amount of mercury. Please follow local ordinances or regulations for disposal. (13) Small amount of materials having no flammability grade is used in the LCD module. The LCD module should be supplied by power complied with requirements of Limited Power Source, or be applied exemption. (14) The LCD module is designed so that the CFL in it is supplied by Limited Current Circuit. Do not connect the CFL in Hazardous Voltage Circuit.

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5.2 Handling and Placing Methods Correct Methods: 1.Take out the monitor with cushions Incorrect Methods: 1.Taking out the monitor by grasping the LCD panel. That may cause "Mura"

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

2.Surface of the LCD panel is pressed by fingers and that may cause "Mura".

3.Place the monitor on a clean and soft foam pad.

3.Placing the monitor on foreign objects. That could scratch the surface of the panel or cause "Mura".

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2. Specification
FEATURES Size Luminance (Typ) TFTLCD PANEL 1st HSD HSD190SEN1-A04 Contrast Ratio (Typ) *1 Colors Response Time *
1

VG921m 19 " 300 cd/ 700:1 16.2 M (6 bits + 2 bits FRC) 8 ms (on/off) 150 ° / 135 °@ CR 10 160 ° / 160 °@ CR 5 1280x1024@60Hz Yes (75ohms, 0.7/1.0 Vp-p) NO Yes Yes Yes Yes Yes Yes 36 W 1 W Yes Yes No No No Yes 425.4 mm x 457.7 mm x 205 mm 497 mm x 516 mm x 158 mm 5.2Kg (11.5 lbs) 6.8Kg (14.9 lbs) 32-104 / 0-40 20 % - 80 % -4-140 / -20-60 10% - 90 % (no condensation)

Viewing Angle (H/V) Recommend resolution

Input Signal

Analog Digital Separate Sync Composite Sync Sync on Green PC Power Mac AC 100-240V, 50/60Hz On Mode(Max) Off Mode (Max) 1.5W / THD 0.5% (Max) Tilt ( 20 ° - -5 °) Swivel Pivot Height Adjust [ 1 ] [ 2 ] [ ] [] [] [Mute] Physical (W x H x D) Package (W x H x D) Physical (Net Weight) Package (Gross Weight) Temperature (/) Humidity (%) Temperature (/) Humidity (%)

Sync Compatibility

Compatibility Power Voltage Power Consumption Audio

Ergonomics

OSD Control Dimension Weight Operating Condition Storage Condition

Regulation

UL/CUL, FCC (ICES-003B), CB, CE, TCO'03, GS, ERGO(covers ISO13406-2 & MPRII), IRAM, VCCI, GOST-R, HYGIENIC (20 copies), Energy Star, CCC, BSMI, PSB, C-TICK, SASO, WEEE, RoHS, Windows Vista Basic

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Audio Interface (Speaker Specification) Line input connection Line input signal Line input impedance Maximum power output (Electric) Speaker Signal to Noise Ratio Frequency response Distortion Vibration Screen image Connector PC99 requirement Audio in Cable type / length Audio DPMS

3.5 mm stereo jack 1.0 Vrms 10 kOhm 1.2 W / ch 1.5W / ch (max) 50 dB 100 Hz ­ 20 kHz < 10 % THD (@1kHZ) There should be no audible vibration with volume at 100% and treble / bass at default. There should be no affect on the screen image stability under any conditions. Lime Green pantone # 577C 3.5mm stereo cable / 1.8m length Speakers should be off when the rest of the monitor is in power saving.

Panel Characteristics: 1st Source Panel Model number Type Active Size Pixel Arrangement Pixel Pitch Glass Treatment # of Backlights Backlight Life Luminance (Center) ­
CT = 6500K, Contrast/ Brightness = Max

HSD190SEN1-A04 Active Matrix TFT, TN technology 19" (376.32mm x 301.056mm) RGB Vertical Stripe 0.294 mm Anti-Glare, Hard coating (3H) 4 CCFL 50000 Hrs (Min) 300 cd/m2 (Typ) 240 cd/m2 (Min) 75 % (Min) 700 :1 (Typ) 450 : 1 (Min) 16.2 million colors (6+2 bit panel) 150 degrees (Typ) / 130 degrees (Min) @ CR>10 160 degrees (Typ) @ CR>5 135 degrees (Typ) / 110 degrees (Min) @ CR>10 160 degrees (Typ) @ CR>5 On-Off 8ms (Typ) / 12ms (Max) 3.0 mg per lamp Please see Panel Quality Specifications.

Brightness Uniformity (13 points) Contrast Ratio Color Depth Horizontal Viewing Angle Vertical Viewing Angle Response Time 10%-90% @ Ta=25°C Mercury Panel Defects

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ELECTRICAL REQUIREMENT Horizontal / Vertical Frequency Horizontal Frequency Vertical Refresh Rate Maximum Pixel Clock Sync Polarity Timing Table
Analog Composite Separated Digital - TMDS

24 ­ 82 kHz 50 ­ 75 Hz 135 MHz Independent of sync polarity

Item

Timing

Remark

SOG

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22

640 x 350 @ 640 x 400 @ 640 x 400 @ 640 x 480 @ 640 x 480 @ 640 x 480 @ 640 x 480 @ 640 x 480 @ 720 x 400 @ 800 x 600 @ 800 x 600 @ 800 x 600 @ 800 x 600 @ 832 x 624 @ 1024 x 768 @ 1024 x 768 @ 1024 x 768 @ 1152 x 864 @ 1152 x 870 @ 1280 x 720 @ 1280 x 1024 @ 1280 x 1024 @

70 Hz, 60 Hz, 70 Hz, 50 Hz, 60 Hz, 67 Hz, 72 Hz, 75 Hz, 70 Hz, 56 Hz, 60 Hz, 72 Hz, 75 Hz, 75 Hz, 60 Hz, 70 Hz, 75 Hz, 75 Hz, 75 Hz, 60 Hz, 60 Hz, 75 Hz,

31.5 KHz 31.5 KHz 31.5 KHz 24.7 KHz 31.5 KHz 35 KHz 37.9 KHz 37.5 KHz 31.5 KHz 35.1 KHz 37.9 KHz 48.1 KHz 46.9 KHz 49.7 KHz 48.4 KHz 56.5 KHz 60 KHz 67.5 KHz 68.7 KHz 45 KHz 64 KHz 80 KHz DMT DMT DMT DMT MAC DMT DMT DMT DMT For MAC DTV DMT DMT DMT DMT The image quality might be worse than 640x480@60Hz

*1. Tolerance ±2KHz (if no overlapping issue) *2. Any timing not in the list, it should display as normal or show on "OUT OF RANGE" OSD message without blanking. *3. The image quality of 50Hz mode might be worse than 60Hz.

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3. Front Panel Function Control Description
3.1 Front Panel Hardware Controls Power Switch (Front Head) Power LED (Front Head) Power Control, soft Power Switch. Green ­ ON Orange ­ Power Saving Mode Dark = Soft Power Switch OFF Front Panel Controls (Head) [ ] [ 1 ] [ 2 ] [] [] [ X] [ X] Mute [ ] Power [ 1 ] BUTTON 1 [ 2 ] Button 2 [] UP ARROW BUTTON [] DOWN ARROW BUTTON Note: Power Button, Button 1 and Button 2 must be one-shot logic operation. (i.e. there should be no cycling) Reaction Time OSD must fully appear within 0.5s after pushing Button 1

3.2 Short Cuts Function from the button(s) [1] [2] [] [] []+ [] [1] + [2] Main Menu Auto Image Adjust Brightness adjust Contrast adjust recall both of Contrast and Brightness to default 1. toggle 720x400@70Hz/640x400@70Hz mode when input one of the two mode 2. toggle 640x480@60Hz/640x400@60Hz mode when input one of the two mode [1] + [] + [] White Balance. *1. Not shown on user's guide *2. Recommend resolution = 640x480@60Hz) [1] + [] [1] + [] Signal + [1] + [ ] Power Lock OSD Lock Factory Mode (include burning mode)

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

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3.3 Function descriptions Main Menu Controls The Main Menu OSD includes most of control functions. Please refer to APPENDIX C (Main Menu OSD Table) for the detail. OSD Lock short cuts function for the buttons The OSD lock will be activated by pressing the front panel control buttons "(1), & ()" for 10 seconds. If the user then tries to access the OSD by pressing any of the buttons "1", "", "", "2" a message will appear on the screen for 3 seconds showing "OSD Locked". The OSD lock will be deactivated by pressing the front panel control buttons "(1), & ()" again for 10 seconds. Note 1: 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 as below 1. Recall white balance to factory setting 2. Set the factory defaults as shown in Section 4-8 3. Clean all the mode setting buffer 4. Execute Auto Image Adjust Note: Memory Recall should have no effect for Language, Power Lock, User Color Settings or Input Priority Input Signal Notice Actions 1. 2. The Input Signal Notice OSD appears 3 seconds when power turns on or change input signal. The Input Signal Notice OSD position is on the right-bottom side of image. And the OSD background shall be transparent. (OSD Background = off). Resolution Notice Actions 1. 2. 3. Resolution Notice OSD should show on screen after changing to non-native mode for 30 sec For auto input select function, it shall meet the requirement in Appendix D. The OSD should disappear after 10 sec or by pushing button [1] or [2]

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

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0-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) 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

3.4 Factory Defaults Item Contrast Brightness Color Temperature Sharpness OSD H. Position OSD V. Position OSD Time Out OSD Background Defaults 70% 100% 6500K 100% 50% 50% 15 On Item Input Priority Resolution Notice Volume Balance Treble Bass 720x400 / 640x400 (@70Hz) 640x480 / 640x400 (@60Hz) Defaults N/A On 50% N/A N/A N/A 720x400 640x480

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3.5 OSD Menu Controls
Select the menu items shown below by using the up [] and down [] buttons.

Main Menu :

Auto Image Adjust :
To automatically adjust H./ V. Position, Phase adjust and Clock adjust. REMARK: There may need to select "Manual Image Adjust" to optimized Performance for various VGA tolerance.

Contrast / Brightness :
To adjust the Contrast of the video and the backlight currency. REMARK: 1. These functions setting can be recalled to default by [Up] + [Dn]. 2. These functions should be disabled and setting to default in sRGB Mode.

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Audio Adjust :
To adjust the audio volume and mute.

Color Adjust :
To select the color temperature sRGB, 9300°K, 7500°K ,6500°K, 5400°K or user color.

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Information:
To display the data about Horizontal / Vertical frequency, Pixel clock, Resolution , Model number and Serial No. of the monitor.

Manual Image Adjust:
Horizontal Size: To adjust the horizontal pixel clock of the video. H./V. Position: To adjust the horizontal and vertical position of the video. Fine Tune: To adjust the delay time of data and clock. Sharpness: To select the picture sharpness of display. REMARK: This function is available under Native Resolution Mode.

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Setup Menu:
Language Select: To select one of eight languages.(English, French, German, Spanish, Italian, Finnish, Japanese, Traditional Chinese, and Simplified Chinese) Resolution Notice: Enable (on) : OSD will notify the best picture quality resolution change the resolution to 1280 x 1024. OSD Position: To set OSD position. OSD Timeout: To set the displaying time of OSD ( 5" / 15" / 30" / 60" ). OSD Background: To select video background brightness.

Memory Recall:
Restore default settings of Clock, H./V. Position, Phase, Contrast, Brightness, Color temperature, OSD position, OSD timeout and Sharpness, Volume.

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4. Circuit Description
1. Power supply (DC/DC Converter) This brick convert is the 110-220AC input voltage to 12V AND 5V output for inverter, audio, panel and system controller use. It consists of a PWM IC (CM0565R, U101) 2. Scaling controller The ADC is to convert RGB analog signal to digital signal that scaling chip can acknowledge. The HSYNC input receives a logic signal and provides the frequency reference for pixel clock generation. The scaling IC is to converts the input signal ranging from VGA to SXGA. GENERAL DESCRIPTION The TSUM57AK is a high performance, and fully integrated graphics processing IC solution for LCD monitors with resolutions up to SXGA. It is configured with an integrated triple-ADC/PLL, a high quality scaling engine, an on-screen display controller, a built-in output clock generator, and LVDS display interface. To further reduce system costs, the TSUM57AK also integrates intelligent power management .

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5. Adjustment Procedure
1. Function Test 1.1 Product - 19" LCD Monitor 1.2 Test Equipment - Color Video Signal & Pattern (or PC with SXGA resolution and a sound card) 1.3 Test Condition Before function test and alignment, each LCD Monitor should be run-in and warmed up for at least 30 minutes with the following conditions: (a) In room temperature, (b) With full-white screen, RGB, and Black (c) With cycled display modes, 640*480 (H=37.5kHz, V=75Hz) 800*600 (H=46.9kHz, V=75Hz) 1024*768 (H=60kHz, V=75Hz) 1280*1024 (H=80kHz, V=75Hz) 1.4 Test Display Modes & Pattern 1.4.1 Compatible Modes Analog 1. 640 x 480 @ 60Hz, 31.5kHz 2. 640 x 480 @ 67Hz, 35.0kHz 3. 640 x 480 @ 72Hz, 37.9kHz 4. 640 x 480 @ 75Hz, 37.5kHz 5. 720 x 400 @ 70Hz, 31.5kHz 6. 800 x 600 @ 56Hz, 35.1kHz 7. 800 x 600 @ 60Hz, 37.9kHz 8. 800 x 600 @ 72Hz, 48.1kHz 9. 800 x 600 @ 75Hz, 46.9kHz 10. 832 x 624 @ 75Hz, 49.7kHz 11. 1024 x 768 @ 60Hz, 48.4kHz 12. 1024 x 768 @ 70Hz, 56.5kHz 13. 1024 x 768 @ 75Hz, 60.0kHz 14. 1280 x 1024 @ 60Hz, 64.0kHz 15. 1280 x 1024 @ 75Hz, 80.0kHz

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1.4.2 Function Test Display Pattern Item Test Content Pattern 1 Frequency & Fine Line Moire Tracking 2 Contrast/Brightness 16 Gray Scale 3 4 5 6 7 Boundary RGB Color Performance Screen Uniformity & Flicker Dead Pixel/Line White Balance Horizontal & Vertical Thickness RGB Color Intensities Full White White Screen & Dark Screen White & Black Pattern Specification Eliminate visual wavy noise. 16 gray levels should be distinguishable. Horizontal and Vertical position of video should be adjustable to be within the screen frame. Contrast of each R, G, B, color should be normal. Should be compliant with the spec. The numbers of dead pixels should be compliant with the spec. The screen must have the pure white and black pattern, no other color. Remark Figure 1 Figure 2 Figure 3 Figure 4, 5, 6 Figure 7 Figure 7, 8 Figure 9

Fine Line Morie Pattern (Figure1)

Gray Scale Pattern (Figure2)

Horizontal & Vertical Thickness Pattern (Figure 3)

R. Color Pattern (Figure 4)

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G. Color Pattern (Figure5)

B. Color Pattern (Figure 6)

Full White Patter (Figure 7)

Dark Screen Pattern (Figure 8)

Black-White Pattern (Figure 9)

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1.5 Function Test and Alignment Procedure 1.5.1 Memory Recall You should do "Memory Recall" first. This action will allow you to erase all end-user's settings and restore the factory defaults. 1.5.2 Auto Image Adjust Please select and enter "Auto Image Adjust" function on Main Menu to see if it is workable. The "Auto Image Adjust" function is aimed to offer a better screen quality by built-in ASIC. For optimum screen quality, the user has to adjust each function manually. 1.5.3 Firmware Test Pattern: Burn In Mode ( Refer to Chapter 3-2. Short Cuts Function from the button(s) ) - Make sure the F/W is the latest version. 1.5.4 DDC Test Pattern: EDID program - Make sure it can pass test program. 1.5.5 Fine Tune and Sharpness Test Signal: 1280x1024@60Hz Test Pattern: Line Moire Pattern - Check and see if the image has noise and focus performs well. Eliminate visual line bar. - If not, readjust by the following steps: (a) Select and enter "Fine Tune" function on "Manual Image Adjust" to adjust the image to eliminate visual wavy noise. (b) Then, select and enter "Sharpness" function to adjust the clarity and focus of the screen image. 1.5.6 Boundary Test Signal: 1280x1024@60Hz Test Pattern: Horizontal & Vertical Line Thickness Pattern - Check and see if the image boundary is within the screen frame. - If not, readjust by the following steps: (a) Select and enter "Manual Image Adjust" function on OSD Main Menu. (b) Then, select and enter "Horizontal Size" or "Horizontal/Vertical Position" function to adjust the video boundary to be full scanned and within screen frame.
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1.5.7 White Balance Test Signal: 1280x1024@60Hz Test Pattern: White and Black Pattern 1.5.8 R, G, B, Colors Contrast Test Signal: 1280x1024@60Hz Test Pattern: R, G, B, Color Intensities Pattern and 16 Gray Scale Pattern - Check and see if each color is normal and distinguishable. - If not, please return the unit to repair area. 1.5.9 Screen Uniformity and Flicker Test Signal: 1280x1024@60Hz Test Pattern: Full White Pattern - Check and see if it is in normal condition. 1.5.10 Dead Pixel and Line Test Signal: 1280x1024@60Hz Test Pattern: Dark and White Screen Pattern - Check and see if there are dead pixels on LCD panel with shadow gauge and filter film. - The total numbers and distance of dead pixels should be compliant with the spec. 1.5.11 Mura Test Pattern: White, RGB, Black, & Grey Test Tool: 8% ND Filter - Check if the Mura can pass 8% ND Filter. 1.5.12 Audio Test Signal: Voice signal (optional, depend on model) Test Pattern: liberty - Make sure there is audio output. - Make sure that audio function (volume80%) is working without noise and resonance. - Make sure that the sound of right and left speakers are in balance. 1.5.13 Check for Secondary Display Modes Test Signal : Analog 640*350@70Hz 1280x1024@75Hz - Normally when the primary mode 1280x1024@60Hz is well adjusted and compliant
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640*480@60HZ / 75HZ 720*400@70Hz 1024*768@60HZ / 75HZ

800*600@60HZ / 75HZ 832*624@75Hz

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with the specification, the secondary display modes will be great possible to be compliant with the spec. But we still have to check with the general test pattern to make sure every secondary is compliant with the specification.

1.5.14 Memory Recall After final QC step, we have to erase all saved changes again and restore the factory defaults. You should do "Memory Recall" again. 1.5.15 Power Off Monitor Turn off the monitor by pressing "Power" button. 2. Firmware Upgrade Procedure When you receive the returned monitor, please check whether the firmware version is the latest. If not, please do the following procedures to upgrade it to the latest version. 2.1 Equipment Needed - VG921m Monitor - Fixture for Firmware Upgrade - VGA Cable - PC (Personal Computer) - ISP Tool - Firmware Upgrade Program - One additional monitor for checking the program execution

ISP tool instruction

15 pin D-Sub

LPT cable

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ISP tool

Use 12V adapter

ISP connect method

ISP Download program procedure Hardware Connect status:

Version update
1. Check : Monitor model 2. Check : Firmware version

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Factory Mode : a. Hold on [2] + [ ] with signal (hold for 3 seconds) into the factory mode. b. Press [ ] key exit factory mode. 3. Update final firmware version Example : ( VG921m follows the same setting procedure ) 1. Check : Monitor model : HC154 2. Check : Firmware version : HC154_AL_150MX17A01R30.2 (ps) 3. Update final firmware version : HC154_AL_150MX17A01R30.3 (ps) HC154_AL_150MX17A01R30.2 AL : Analog / LVDS DL : Analog + Digital / LVDS AR : Analog /RSDS DR : Analog + Digital / RSDS Panel type : 150MX17A01 Firmware version : R30.2

Change Panel (Version update)
1. Check : Monitor model 2. Check : Firmware version

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Factory Mode : a. Hold on [2] + [ ] with signal (hold for 3 seconds) into the factory mode. b. Press [ ] key exit factory mode. 3. Check : Panel type.

4. Change Panel. 5. Update final firmware version. 6. Update EDID code. Example : ( VG921m follows the same setting procedure ) 1. Check : Monitor model : HC154 2. Check : Firmware version : HC154_AL_150MX17A00R30.2 (ps.1) 3. Check : Panel type : HSD150MX17A00. 4. Change Panel. (ps.2) (ps.1) HC154_AL_150MX17A00R30.2 AL : Analog / LVDS DL : Analog + Digital / LVDS AR : Analog /RSDS DR : Analog + Digital / RSDS Panel type : 150MX17A01 Firmware version : R30.2 (ps.2) If change panel : (Form HSD150MX17A00 change to HSD150MX17A01) Panel type : 150MX17A00 => 150MX17A01 Firmware change : HC154_AL_150MX17A00R30.2 =>
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HC154_AL_150MX17A01R30.2 5. Update final firmware version : HC154_AL_150MX17A01R30.3 6. Update EDID code : HC154_150MX17A01_EDID_A.txt

Change Scaler Board (Version update)
1. Check : Monitor model 2. Check : Firmware version

Factory Mode : a. Hold on [2] + [ ] with signal (hold for 3 seconds) into the factory mode. b. Press [ ] key exit factory mode. 3. Change scaler board. 4. Update final firmware version. 5. Update EDID code. Example : ( VG921m follows the same setting procedure ) 1. Check : Monitor model : HC154 2. Check : Firmware version : HC154_AL_150MX17A01R30.2 (ps) (ps) HC154_AL_150MX17A01R30.2 AL : Analog / LVDS DL : Analog + Digital / LVDS AR : Analog /RSDS DR : Analog + Digital / RSDS Panel type : 150MX17A01 Firmware version : R30.2 3. Change scaler board. 4. Update final firmware version : HC154_AL_150MX17A01R30.3 5. Update EDID code : HC154_150MX17A01_EDID_A.txt

Mstar scaler ISP function
1. Enforce Mstar ISP_Tool program.

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2. After Enforcing Mstar ISP_Tool Program, open Utility Window.

3. Enforce Mstar ISP Utility Window's Connect function, and Device Type's Dialog window will be opened ,then press "Sure " on Dialog window.

4. Enforce Mstar ISP Utility window's Read function.

5. Choose the path and the file of Binary code.

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6. Choose the path and file of Binary code ,and Program Bin Ready Dialog window will be opened, then press "Sure" on Dialog window.

7. Enforce Mstar ISP "Auto" function of Utility window.

8. Enforce Mstar ISP Utility window "Run" and write in the data .
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9. After writing in the data , Enforce Dis Connect function of Mstar ISP Utility window and the burn in procedure will be completed.

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DDC Key In Procedure
Note: 1. Every time after replacing the main board, you have to do the DDC key in. 2. If you find the DDC does not conform to the monitor, you have to do the DDC key in. Equipment Needed - VG921m Series Monitor - DDC Card - PC - RS232 cable - VGA Cable or DVI Cable

DDC Card (D8330)

RS-232 Cable VGA Cable Step 1 : Select VG921m in Working Model column to show EDID data on left. Example : VX1935wm ( VG921m follows the same setting procedure )

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Step 2 : Modify the column of Week of Manufacture and Year of Manufacture and ID serial Number then press "2B" button for changing serial number data. Example : VX1935wm ( VG921m follows the same setting procedure )

Step 3 : You will see the result as follows.

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VG921m-2

Packing For Shipping And Disassembly Procedure
Packing For Shipping 1. Packing Procedure 1.1 Put the monitor in the PE bag and seal the bag with tape. (Figure 1 ~ 2)

(Figure 1) 1.2 Put the cushions on the monitor. (Figure 3)

(Figure 2) 1.3 Put the Cables in the PE bag. (Figure 4)
D-Sub cable Power cord Audio cable

(Figure 3)

(Figure 4)

1.4 Place the monitor into the carton and then put all the accessories into the carton. At last, close the carton and seal it with tape. (Figure 5 ~ 6) User's manual / Warranty card/ CD package

Base short side turn upward

Panel side forward (Figure 5)

D-Sub Cable (Figure 6)

Power Cord / Audio Cable

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VG921m-2

2. Disassembly Procedure

1. Remove the base cover.

2. Remove the hinge cover.

3. Unfasten 4 pcs of screws to remove base.

4. Unfasten 4 pcs of screws with back cover.

5. Separate the Cover from the bottom of the Housing by using a Flat tool to remove back cover.

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VG921m-2

6. Disconnect the cables of Power-Key board and remove it.

7. Unfasten 2 pcs of screws to remove right speaker.

8. Unfasten 2 pcs of screws to remove left speaker.

9. Tear off the tape.

10. Unfasten 2 pcs of screws to remove key board.

11. Pull and open the fixed support to remove Front Bezel.

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VG921m-2

12. Disconnect the cables of P/I/A board.

13. Tear off the tape with the Shielding.

14. Unfasten 5 pcs of screws with Shielding.

15. Disconnect the cables of P/I board.

16. Disconnect the cables of D-Sub.

17. Unfasten 8 pcs of screws to remove P/I/A board.

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VG921m-2

18. Disconnect the cables of P/I/A board.

19. Set the short pin before changing new P/I/A board.

20. Unfasten 5 pcs of screws to remove D-Sub board.

21. Disconnect the cables of D-Sub board.

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VG921m-2

6. Troubleshooting Flow Chart Q1 NO POWER

Please check if power cable is connected properly

YES

Change P/I/A board (ps)

NO Q2 NO DISPLAY

Please reconnect power cable

Please check if signal cable is connected properly

YES

Change Panel

NO

Please reconnect signal cable

Q3 Display panel have horizontal line or vertical line Please change panel

Q4 The backlight is OFF 1 Please check inverter wire if properly connected

2

Please change panel or P/I/A board (ps)

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VG921m-2

Q5 Display panel have block bar

Please change
Q6 Display panel with missing color 1
Please check signal cable if connected properly and check all pins are good without bent

2

Please check if panel wire is loose connection or not

3

Please change panel

Q7 Audio output error Please change board (ps) P/I/A

(ps) : P/I/A board

Power/Inverter/Audio board

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VG921m-2

7. Block Diagram
AC INPUT 100V~240V SW Power 12V 5V DC-DC U3 AIC1084-33PM 3.3V

+5V

AUDIO U501 TDA7496

INVERTER MP 1038EY

PANEL DISPLAY

SPEAKER

BL_EN BL-BRIGHT

SCALAR U401 TSUM57AK

AUDIO INPUT CN501

DC-DC U301 G1117-33 1.8V EEPROM U1 AT24C16N-10SC-2. 7

OSC

12M Y1

HSYNC VSYNC

RG BINPUT

DDC U6 AT24C02

Flash U402 SST25VH010

HV SYNC VGA D-SUB SCLSDA VGA 5V CONN CN4

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VG921m-2

8. Schematic Diagrams

VDDA:+12V

VDD+5

L200 LK.CD032.A01

D105 SSM5818SPT 1 2 C207
VDD12

R200

VDD+12 TP1

C200 R216 10uF/16V 0 1/16W

C203 0.1uF/16V R201 0 1/16W

1uF

C227 10uF/16V

C228
+

0 1/16W C204 0.1uF/16V C213 10uF/16V

VDD12

C210 0.22uF/25V

100uF/16V

R204 C218 NC 100K 1/16W 1 2
SD

GND U200 COMP FB SHDN GND AAT1102 C220 GND C219 0.0022uF 0.068uF/16V GND SS FREQ IN LX 8 7 6 5

GND 1

D215 BAT54SPT 2 1

D204 BAT54SPT GND 2 Q212 MMBT3904 3 R203 2 R211 3 Q210 2 C223 MMBT3906 0.47uF/25V 1 R210 3 10K 1/16W C209 1uF 22 3 1 10K 1/16W R214 110k 1% C206 0.1uF 0 1/16W
VGH: 23.5V

VGH

3 4

R205 11.5k 1%

C217 18pF

R206 75K 1/16W

3

C211

C212

0.22uF/25V

0.22uF/25V

Q213 MMBT3904 1

GND

C224 2.2u

GND D207 CHPT521S-30
VDD12

GND D23 5.6V Q211 MMBT3904 R212

R213 39.2k 1%

GND

R208 56K 1/16W 3 1 GND

2

VCC

R526 2

1

1

GND

VDD12

R527 33k/NC
SD

0 1/16W

C222 0.1uF/16V

R209 56K 1/16W

24K 1/16W

R215 0/NC

XAO

Q209 MMBT3906 3 2

U202 1 2 3 OUT CD VDD GND NC 5 4 C226 220p/NC C221 3 0.47uF/25V D201 BAT54SPT 1 C208 1uF R207

GND

R202

VGL
VGL: -6V

0 1/16W 1 C202 10u/NC C205 0.1uF/16V

C225 0.1u/NC GND GND

S-80924LMC-G6U-T2G/NC

1K 1/16W 1

GND

GND D214 6.2V 22 GND

2 GND

D208 CHPT521S-30 1 GND

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Model Title Date Rev:

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VG921m-2

CN5 GND C408 NC C140 NC C411 NC TP145 VCC VGH VGL 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 GND GND GND GND VDD VDD NC STV STV2 CPV OE NC VGH NC VGL NC VGC XAO VCOM VCOM GND GND GND GND GND GND GND AF724L-N2GIZ GND GND

STV1 CPV OE TP146 TP147 TP148 TP149 XAO VDD+12
VDD+12

TP150

VCOM

C415 0.1uF/16V U400 20 19 18 17 16 15 14 13 12 11 1 2 3 4 5 6 7 8 9 10

C416 C413 0.1uF/16V 10u/NC

R528 C412 2.2u/NC

C403 10uF/16V

C418 0.1uF/16V

C404 10uF/16V

C414 0.1uF/16V R405 30.1k GND 1
V0 V1 V5 V8 V12 V13

VR1 TMC3K-B10K-TR

2

VDD IN1 IN2 IN3 IN4 IN5 IN6 NC INCOM GND BUF07703

VDD OUT1 OUT2 OUT3 OUT4 OUT5 OUT6 NC OUTCOM GND

10K 1/16W
VGMA0 VGMA1 VGMA5 VGMA8 VGMA12 VGMA13

GND

GND

R400

VCOM VCOM TP151 TP152 TP153 TP154 TP155 TP156 TP157 TP158 TP159 TP160 TP161 TP162 TP163 TP164

VGMA[0..13]

VGMA0 VGMA1 VGMA2 VGMA3 VGMA4 VGMA5 VGMA6 VGMA7 VGMA8 VGMA9 VGMA10 VGMA11 VGMA12 VGMA13

0 1/16W R404
+

C406 3 R406 20K 1/16W 0.1uF/16V GND

C400 47uF/16V

C405 0.1uF/16V

TP2
VCOM: 4~6V

GND10K 1/16W

GND GND

GND

R401
VDD+12

R413

R415

R417

R421

R418

R416

R414
V12

NC C419 NC

NC

NC

NC

NC

NC

NC

NC

V0 V1 V5 V8

GND

VGMA10

R402
VDD+12

R422

R439

R441

R443

R445

R447

R419

R403

R420

R448

R446

R444

VGMA11

VGMA2

VGMA3

VGMA4

VGMA6

VGMA7

VGMA9

R442

R440

V13

R423

0

11 1%

14.3 1%

93.1 1%

27.4 1%

21 1%

39.2 1%

46.4 1%

6.2 1%

39 1%

39 1%

21 1%

27.4 1%

91 1%

15 1%

6.2 1%

C407 10u
1206

C420 0.1u

C421 0.1u

C422 0.1u

C423 0.1u

C424 0.1u

C425 0.1u

C426 0.1u

C427 0.1u

C428 0.1u

C429 0.1u

C430 0.1u

C431 0.1u

C432 0.1u

C433 0.1u

C434 0.1u

C435 0.1u

GND

ViewSonic Corporation
Title Date Rev:

Model

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VG921m-2

TP51

TP52

TP53

TP54

TP55

TP56

TP57

TP58

TP59

TP60

TP61

TP62

TP63

TP64

TP65

TP66

TP67

TP68

TP69

TP70

B_D10

B_D11

B_D12

B_D13

B_D14

B_D15

B_D16

B_D17

B_D18

R163

R164

R165

R166

R167

R168

R169

R170

R171

R172

100 1/16W

100 1/16W

100 1/16W

100 1/16W

100 1/16W

100 1/16W

100 1/16W

100 1/16W

100 1/16W

100 1/16W

B_D[0..19]

VCOM C554 0.1uF/16V X5 TP121 TP125 TP129 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 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 TP2 TP2 COM2 COM2 COM2 NC S1 STHR D00N D00P VSS1 D01N D01P VSS1 D02N DO2P VSS1 INV POL STB VSS1 CLKN CLKP Osel VSS1 MODE V0 V1 V2 V3 V4 V5 V6 VSS2 VSS2 NC VDD2 VDD2 V7 V8 V9 V10 V11 V12 V13 R/L LPC VDD1 VDD1 NC VSS1 D10N D10P VSS1 D11N D11P VSS1 D12N D12P VSS1 D20N D20P VSS1 D21N D21P VSS1 D22N D22P STHL S480 NC COM1 COM1 COM1 TP1 TP1 X_IC GND GND GND C555

VCOM

B_D19

B_D0

B_D1

B_D2

B_D3

B_D4

B_D5

B_D6

B_D7

B_D8

B_D9

VCOM

VCOM

C556 X6 TP122 TP126 TP130 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 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 TP2 TP2 COM2 COM2 COM2 NC S1 STHR D00N D00P VSS1 D01N D01P VSS1 D02N DO2P VSS1 INV POL STB VSS1 CLKN CLKP Osel VSS1 MODE V0 V1 V2 V3 V4 V5 V6 VSS2 VSS2 NC VDD2 VDD2 V7 V8 V9 V10 V11 V12 V13 R/L LPC VDD1 VDD1 NC VSS1 D10N D10P VSS1 D11N D11P VSS1 D12N D12P VSS1 D20N D20P VSS1 D21N D21P VSS1 D22N D22P STHL S480 NC COM1 COM1 COM1 TP1 TP1 X_IC 0.1uF/16V GND TP123 TP127 TP131 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 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 X7 TP2 TP2 COM2 COM2 COM2 NC S1 STHR D00N D00P VSS1 D01N D01P VSS1 D02N DO2P VSS1 INV POL STB VSS1 CLKN CLKP Osel VSS1 MODE V0 V1 V2 V3 V4 V5 V6 VSS2 VSS2 NC VDD2 VDD2 V7 V8 V9 V10 V11 V12 V13 R/L LPC VDD1 VDD1 NC VSS1 D10N D10P VSS1 D11N D11P VSS1 D12N D12P VSS1 D20N D20P VSS1 D21N D21P VSS1 D22N D22P STHL S480 NC COM1 COM1 COM1 TP1 TP1 X_IC GND GND

C557 0.1uF/16V GND TP124 TP128 TP132 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 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 X8 TP2 TP2 COM2 COM2 COM2 NC S1 STHR D00N D00P VSS1 D01N D01P VSS1 D02N DO2P VSS1 INV POL STB VSS1 CLKN CLKP Osel VSS1 MODE V0 V1 V2 V3 V4 V5 V6 VSS2 VSS2 NC VDD2 VDD2 V7 V8 V9 V10 V11 V12 V13 R/L LPC VDD1 VDD1 NC VSS1 D10N D10P VSS1 D11N D11P VSS1 D12N D12P VSS1 D20N D20P VSS1 D21N D21P VSS1 D22N D22P STHL S480 NC COM1 COM1 COM1 TP1 TP1 X_IC GND GND

0.1uF/16V

GND TP172

5S1 STH_B
B_D0 B_D1 B_D2 B_D3 B_D4 B_D5

6S1
STH5-6

7S1
STH6-7

8S1
STH7-8

B_D0 B_D1 B_D2 B_D3 B_D4 B_D5
INV POL LP

B_D0 B_D1 B_D2 B_D3 B_D4 B_D5
INV POL LP

B_D0 B_D1 B_D2 B_D3 B_D4 B_D5
INV POL LP

INV POL LP
B_D18 B_D19

B_D18 B_D19

B_D18 B_D19

B_D18 B_D19

MODE

MODE VGMA0 VGMA1 VGMA2 VGMA3 VGMA4 VGMA5 VGMA6

MODE

MODE

VGMA0 VGMA1 VGMA2 VGMA3 VGMA4 VGMA5 VGMA6

VGMA0 VGMA1 VGMA2 VGMA3 VGMA4 VGMA5 VGMA6

VGMA0 VGMA1 VGMA2 VGMA3 VGMA4 VGMA5 VGMA6

VDDA2 VGMA7 VGMA8 VGMA9 VGMA10 VGMA11 VGMA12 VGMA13

VDDA2 VGMA7 VGMA8 VGMA9 VGMA10 VGMA11 VGMA12 VGMA13
LPC

VDDA2 VGMA7 VGMA8 VGMA9 VGMA10 VGMA11 VGMA12 VGMA13
LPC

VDDA2 VGMA7 VGMA8 VGMA9 VGMA10 VGMA11 VGMA12 VGMA13
LPC

LPC

VDDB2

VDDB2

VDDB2

VDDB2

B_D6 B_D7 B_D8 B_D9 B_D10 B_D11 B_D12 B_D13 B_D14 B_D15 B_D16

B_D6 B_D7 B_D8 B_D9 B_D10 B_D11 B_D12 B_D13 B_D14 B_D15 B_D16
B_D17

B_D6 B_D7 B_D8 B_D9 B_D10 B_D11 B_D12 B_D13 B_D14 B_D15 B_D16 B_D17

B_D6 B_D7 B_D8 B_D9 B_D10 B_D11 B_D12 B_D13 B_D14 B_D15 B_D16 B_D17

TP133

B_D17
STH5-6

5S480
VCOM

TP134

STH6-7

6S480
VCOM

TP135

STH7-8

7S480
VCOM

TP136

8S480
VCOM

C558 0.1u/NC

TP137 TP141

C559 0.1u/NC GND

TP138 TP142

C560 0.1u/NC

TP139 TP143

C561 0.1u/NC

TP140 TP144

GND

VGMA[0..13]

VCC

L502 B0603/0
VDDB2

VDD+12

L503 B0603/0
VDDA2

C536 0.1uF/16V

C530

C532

C534

C529 0.1uF/16V

C531

C533

C535

0.1uF/16V 0.1uF/16V 0.1uF/16V

0.1uF/16V 0.1uF/16V 0.1uF/16V

ViewSonic Corporation
Model Title Date Rev:

GND

GND

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VG921m-2

TP22

TP23

TP24

TP25

TP26

TP27

TP28

TP29

TP30

TP31

TP32

TP33

TP34

TP35

TP36

TP37

TP38

TP39

TP40

TP41

F_D10

F_D11

F_D12

F_D13

F_D14

F_D15

F_D16

F_D17

F_D18

R149

R150

R151

R152

R153

R154

R155

R156

R157

R158

100 1/16W

100 1/16W

100 1/16W

100 1/16W

100 1/16W

100 1/16W

100 1/16W

100 1/16W

100 1/16W

100 1/16W

F_D[0..19] VCOM C548 0.1uF/16V TP97 TP101 TP105 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 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 X1 TP2 TP2 COM2 COM2 COM2 NC S1 STHR D00N D00P VSS1 D01N D01P VSS1 D02N DO2P VSS1 INV POL STB VSS1 CLKN CLKP Osel VSS1 MODE V0 V1 V2 V3 V4 V5 V6 VSS2 VSS2 NC VDD2 VDD2 V7 V8 V9 V10 V11 V12 V13 R/L LPC VDD1 VDD1 NC VSS1 D10N D10P VSS1 D11N D11P VSS1 D12N D12P VSS1 D20N D20P VSS1 D21N D21P VSS1 D22N D22P STHL S480 NC COM1 COM1 COM1 TP1 TP1 X_IC GND VGMA[0..13] GND
VCOM VCOM VCOM VCOM

F_D19

F_D0

F_D1

F_D2

F_D3

F_D4

F_D5

F_D6

F_D7

F_D8

F_D9

C549 0.1uF/16V TP98 TP102 TP106 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 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 X2 TP2 TP2 COM2 COM2 COM2 NC S1 STHR D00N D00P VSS1 D01N D01P VSS1 D02N DO2P VSS1 INV POL STB VSS1 CLKN CLKP Osel VSS1 MODE V0 V1 V2 V3 V4 V5 V6 VSS2 VSS2 NC VDD2 VDD2 V7 V8 V9 V10 V11 V12 V13 R/L LPC VDD1 VDD1 NC VSS1 D10N D10P VSS1 D11N D11P VSS1 D12N D12P VSS1 D20N D20P VSS1 D21N D21P VSS1 D22N D22P STHL S480 NC COM1 COM1 COM1 TP1 TP1 X_IC GND GND

C546 0.1uF/16V X3 GND TP99 TP103 TP107 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 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 TP2 TP2 COM2 COM2 COM2 NC S1 STHR D00N D00P VSS1 D01N D01P VSS1 D02N DO2P VSS1 INV POL STB VSS1 CLKN CLKP Osel VSS1 MODE V0 V1 V2 V3 V4 V5 V6 VSS2 VSS2 NC VDD2 VDD2 V7 V8 V9 V10 V11 V12 V13 R/L LPC VDD1 VDD1 NC VSS1 D10N D10P VSS1 D11N D11P VSS1 D12N D12P VSS1 D20N D20P VSS1 D21N D21P VSS1 D22N D22P STHL S480 NC COM1 COM1 COM1 TP1 TP1 X_IC GND GND

C547 0.1uF/16V X4 GND TP100 TP104 TP108 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 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 TP2 TP2 COM2 COM2 COM2 NC S1 STHR D00N D00P VSS1 D01N D01P VSS1 D02N DO2P VSS1 INV POL STB VSS1 CLKN CLKP Osel VSS1 MODE V0 V1 V2 V3 V4 V5 V6 VSS2 VSS2 NC VDD2 VDD2 V7 V8 V9 V10 V11 V12 V13 R/L LPC VDD1 VDD1 NC VSS1 D10N D10P VSS1 D11N D11P VSS1 D12N D12P VSS1 D20N D20P VSS1 D21N D21P VSS1 D22N D22P STHL S480 NC COM1 COM1 COM1 TP1 TP1 X_IC GND GND

GND TP166

GND

1S1 STH_F
F_D0 F_D1 F_D2 F_D3 F_D4 F_D5

2S1
STH1-2

3S1
STH2-3

4S1
STH3-4

F_D0 F_D1 F_D2 F_D3 F_D4 F_D5
INV POL LP

F_D0 F_D1 F_D2 F_D3 F_D4 F_D5
INV POL LP

F_D0 F_D1 F_D2 F_D3 F_D4 F_D5
INV POL LP

TP167
INV

POL LP TP168
F_D18 F_D19

F_D18 F_D19

F_D18 F_D19

F_D18 F_D19

MODE

MODE

MODE

MODE

VGMA0 VGMA1 VGMA2 VGMA3 VGMA4 VGMA5 VGMA6

VGMA0 VGMA1 VGMA2 VGMA3 VGMA4 VGMA5 VGMA6

VGMA0 VGMA1 VGMA2 VGMA3 VGMA4 VGMA5 VGMA6

VGMA0 VGMA1 VGMA2 VGMA3 VGMA4 VGMA5 VGMA6

VDDA1

VDDA1

VDDA1

VDDA1

VGMA7 VGMA8 VGMA9 VGMA10 VGMA11 VGMA12 VGMA13
LPC VDDB1

VGMA7 VGMA8 VGMA9 VGMA10 VGMA11 VGMA12 VGMA13
LPC VDDB1

VGMA7 VGMA8 VGMA9 VGMA10 VGMA11 VGMA12 VGMA13
LPC VDDB1

VGMA7 VGMA8 VGMA9 VGMA10 VGMA11 VGMA12 VGMA13
LPC VDDB1

F_D6 F_D7 F_D8 F_D9 F_D10 F_D11 F_D12 F_D13 F_D14 F_D15 F_D16 F_D17

F_D6 F_D7 F_D8 F_D9 F_D10 F_D11 F_D12 F_D13 F_D14 F_D15 F_D16 F_D17

F_D6 F_D7 F_D8 F_D9 F_D10 F_D11 F_D12 F_D13 F_D14 F_D15 F_D16 F_D17

F_D6 F_D7 F_D8 F_D9 F_D10 F_D11 F_D12 F_D13 F_D14 F_D15 F_D16 F_D17

TP109

STH1-2

1S480
VCOM

TP110

STH2-3

2S480
VCOM

TP111

STH3-4

3S480
VCOM

TP112

4S480
VCOM

C550 0.1u/NC

TP113 TP117

C551 0.1u/NC

TP114 TP118

C552 0.1u/NC

TP115 TP119

C553 0.1u/NC

TP116 TP120

VCC VCC R53 0 C538 0.1uF/16V 0.1uF/16V C539 C540 C541
VDDB1

VCC

VCC

VDD+12 R56 0 C542 0.1uF/16V 0.1uF/16V 0.1uF/16V C543 C544 C545 TP169
VDDA1

R523 NC

R500 1K 1/16W

R524 NC

0.1uF/16V

0.1uF/16V 0.1uF/16V
MODE

MODE

TP170

LPC

LPC

TP171

INV

INV

GND

GND

R501 1K 1/16W

R525 NC

R502 1K 1/16W

ViewSonic Corporation
Model Title Date Rev:

GND
Charge sharing setting(Low : Enable)

GND

GND
Data pol (Low : Disable)

Low Power Control(Hi : Enable)

40

ViewSonic Corporation

Confidential - Do Not Copy

VG921m-2

CN3 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

L4

NC

5V 5V 3.3V 2 TP3

U3 3 VIN GND AIC1084-33PM
+

F1
BK_EN BK_PWM MUTE STBY
SW1_AUTO

ERBSE2R00U

R38 R40 R9 0 1/16W
VOLUME

100 1/16W 47 1/16W

BL_ON/OFF BL_ADJ

VOUT

1

SW2_VOLSW3_POWER
SW4_VOL+ SW5_MENU LED_B LED_G

VOLUME R476 R477

10K 1/16W 10K 1/16W PWR SW4_VOL+ SW5_MENU 22 1/16W PWR_LEDB 22 1/16W PWR_LEDG

C30 0.1uF

R41 R39

C31 47uF/16V

C32 0.1uF

CONN R6 0 1/16W C1 NC C2 NC

GND

GND

GND C53 NC

GND C33 C34 C35 C36 C37 C38 D401 C39 D402 3.6V VDD+5 3 GND 5V 1K 1/16W C301 10uF/16V 10K 1/16W 1 U301 VIN GND G1117-33 VOUT VOUT 2 4 0 1/16W R303 C303 C302 VCC R302

GND

C41
+

C40

0.1uF/16V 0.1uF/16V 0.1uF/16V 0.1uF/16V 0.1uF/16V 0.1uF/16V

3.6V 0.1uF/16V

0.1uF/16V

100uF/16V

GND 5V R45 NC R46 C45 0.1uF/16V Q1 NC GND R47 AMP_MUTE NC 4.7K 1/16W

GND

10uF/16V 0.1uF/16V

MUTE

R538

NC

R537

BL_ON/OFF

GND BL_EN R540 4.7K 1/16W Q17 PMBS3904 C164 0.1uF/16V 5V GND 5V GND R51 10K 1/16W R301 0 1/16W VDD+5

GND

5V

5V

1K 1/16W

R54 NC

R57 51K 1/16W

STBY

R49 C46 0.1uF/16V Q2 NC GND GND R50 NC

4.7K 1/16W BL_BRIGHT

R542 R544

NC

R541

R48 NC

R58 4.7K 1/16W PWR_EN R543 Q16 PMBS3904 4.7K 1/16W C165 1uF/16V
BL_ADJ

Q3 AO3401 C47

R55 0 1/16W

Q4 PMBS3904 C49

0.1uF/16V C48 10uF/16V R59 10K 1/16W

4.7K 1/16W

AMP_STBY

R174 NC

0.1uF/16V

GND GND GND GND GND

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VG921m-2

C50 2 1 D6 BAV99
DDC_SCL DDC_SDA

0.22uF

GND FB3

DDC_SCL DDC_SDA 3 60ohm

R60 R61 75 1/16W

56 1/16W

B_IN+

CN4 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 CONN GND
DB_RDB_R+ DB_GDB_G+ DB_BDB_B+ DDC_VDD

DDC_VDD

D7 UDZS5.6B

D8 UDZS5.6B
DB_B-

C146 NC R62 100 1/16W

B_IN-

GND
VGA_CONN

R63 1K 1/16W VGA_DET 2 C51 1

GND

VGA_CONN

UDZS5.6B

VGA_HS VGA_VS DDC_SDA DDC_SCL

D11

C231 0.1uF GND
DB_B+

D9 UDZS5.6B

D18 NC/UDZS5.6B

0.22uF D10 BAV99 GND R64 100 1/16W

SOGI

3

GND

FB4 R65 60ohm R66 75 1/16W
DB_G-

GND

GND

DB_G+
DB_R+

56 1/16W

G_IN+

C147 NC R67 100 1/16W G_IN-

C52 2 1

GND

0.22uF

D14 BAV99

GND FB5

24C02_WP DDC_WP

3

R68 60 ohm R69 75 1/16W
DB_R-

56 1/16W

R_IN+

5V R71 4.7K 1/16W

C148 NC R72 100 1/16W

R_IN-

GND

GND D24 BAV70 C149 VGA-VDD 5V R178 4.7K 1/16W R179 4.7K 1/16W R184
VGA_VS
VGA_HS

C230 0.1uF

GND

D17 UDZS5.6B

DDC_VDD FB7 R70 120ohm R73 D15 D16 R74 2.2K 1/16W 2.2K 1/16W 1K 1/16W VSI 1K 1/16W HSI

0.1uF/16V GND U6 AT24C02 1 2 3 4 A0 VCC A1 WP A2 SCLK GND SDA 8 7 6 5

R75

4.7K 1/16W

UDZS5.6B

UDZS5.6B

C55 33pF

C56 220pF

R180 R181

100 1/16W 100 1/16W

DDC_SCL DDC_SDA

ViewSonic Corporation
GND GND GND
Model Title Date Rev:

GND

GND

42

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Confidential - Do Not Copy

VG921m-2

VCTRL

R529 51 1/16W C163 4.7uF/35V 1.8V

1.8V

FB2 600 OHM C23 10uF/16V C24 C9 C19

VDDC

3.3V

FB1 600 OHM

AVDD

3.3V

FB407 600 OHM

VPLL

C151

C3 0.1uF/16V

C4 0.1uF/16V GND

+ +

Q15 CHT2907 C

0.1uF/16V 0.1uF/16V 0.1uF/16V 0.1uF/16V

D25 GND LL4148WP R530 3.3V 2K 1/16W FB6 600 OHM C21
+

B D26 LL4148WP R531 100 1/16W

GND VDDP 3.3V C152 C153 FB408 600 OHM VDVI 3.3V C22 C154 C155 C5 C6 FB406 600 OHM C7 C8 0.1uF/16V 0.1uF/16V VMPLL

E

GND 3.3V VDVI VMPLL VPLL AVDD VDDP VDDC

10uF/16V

0.1uF/16V 0.1uF/16V 0.1uF/16V 0.1uF/16V 0.1uF/16V

0.1uF/16V 0.1uF/16V GND

GND 14 67 95 103 115 12 97 117 68 44 50 52 4 34 60

GND H11 H12 H13

3.3V NC NC

U401 AVDD_MPLL AVDD_MPLL AVDD_ADC AVDD_DVI AVDD_DVI AVDD_PLL 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 3.3V 4.7K 1/16W 4.7K 1/16W R42 R43 R44 100 1/16W 100 1/16W 100 1/16W
ESP OSP VCTRL

1

1

R35 DDC_SDA R37 DDC_SCL D20 NC/UDZS5.6B

100 1/16W 100 1/16W

TP78 TP81 HSI VSI

R34

R36

R_IN+ R_ING_IN+ G_INSOGI B_IN+ B_IN-

C13 C12 C15 C14 C16 C20 C17

0.047uF 0.047uF 0.047uF 0.047uF 0.047uF 0.047uF 0.047uF

59 58 56 55 57 54 53 63 64 65 66 39 40 42 43 45 46 48 49 36 37

RIN0P RIN0N GIN0P GIN0N SOGIN0 BIN0P BIN0N HSYNC0 VSYNC0 DDCA_SDA DDCA_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

B_D16 B_D15

NC

NC

NC

NC

NC

NC

NC

NC

F_D12 F_D15 F_D14 F_D17 F_D16 F_D7 F_D6 F_D9 F_D8 F_D11 F_D10 F_D1 F_D0 F_D3 F_D2 F_D5 F_D4

B_D13 B_D12 B_D11 B_D10 B_D9 B_D8 B_D7 B_D6 B_D5 B_D4 B_D3 B_D2 B_D1 B_D0 B_D19 B_D18

R76

R77

R10

R78

R79

R13

R80

R81

80ohm GND

80ohm GND H1 H2

R14

NC

F_D13

B_D14

L1

L2

L3

80ohm GND

D21 NC/UDZS5.6B

GND GND

DVI_R+ DVI_RDVI_G+ DVI_GDVI_B+ DVI_BDVI_CLK+ DVI_CLKDVI_SDA DVI_SCL

RX2P RX2N RX1P RX1N RX0P RX0N RXCKP RXCKN DDCD_SDA DDCD_SCL

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

H3

H4

1 H5

B_D17

H6

1

1

1

1

1

B_D[0..19]
F_D19

H7

H8

F_D[0..19] 1 1

B_D5 B_D4 B_D3 B_D2 B_D1 B_D0 B_D11 B_D10 B_D9 B_D8 B_D7 B_D6 F_D19 F_D18 B_D19 B_D18

F_D18 F_D17 F_D16 F_D15 F_D14 F_D13 F_D12 F_D11 F_D10 F_D9 F_D8 F_D7 F_D6 F_D5 F_D4 F_D3 F_D2 F_D1 F_D0

AVDD

R28

390 1%

51 62 61

REXT REFP REFM

C27 3.3V R1510K 1/16W 0.1uF

STHB,F SWAP 10/06

C156 0.1uF/16V 5V C157 10uF/16V

U402 8 7 3 4 VDD HOLD# WP# VSS SDO CE# SCK SDI 2 1 6 5 70 71 72 73 SDO SCZ SCK SDI

TSUM57AK

+

SST25VH010
WP

19

B_D12

4.7K 1/16W 4.7K 1/16W

4.7K 1/16W

4.7K 1/16W

10K 1/16W

C229 R20 0.1uF GND

C28

22pF Y1

R19

GND R29 NC/ 1M 1/16W 14.318MHZ

32

XIN

R177

R176

R175

C29

22pF

TP96

R217

R5 R4

R3

GND

GND

GND

XOUT

5V

R190

33

3.3V R192 R193 NC NC 10K 1/16W 102 104 10K 1/16W

10K 1/16W

R23

PWR_EN

R194

R195

GPIO_P16 PWM1/GPIO_P25 GPIO_P17/SAR0 GPIO_P00/SAR1 GPIO_P01/SAR2 GPIO_P02/SAR3 GPIO_P06 GPIO_P07 PWM0/GPIO_P26 GPIO_P13 GPIO_P14 DDCROM_SCL DDCROM_SDA

R173

MODE[0] MODE[1]

GPIO_P16 GPIO_P15 PWM2/GPIO_P24 GPIO_P27/PWM1

DVI_DET VGA_DET

TP86

BL_EN BL_BRIGHT
LEDB

47 1/16W

GPIO_P22 GPIO_P23 GPIO_P03

10K 1/16W

10K 1/16W

ESP OSP GPO0 GPO1 GPO2 GPO3 GPO4 GPO5 GPO6

4.7K 1/16W

39K 1/16W

39K 1/16W

10K 1/16W

R187

22K 1/16W

NC

Q11 PMBS3904 C158 0.1uF/16V GND
LEDG

R17 R22 R18 R21 R16

22 1/16W 22 1/16W 22 1/16W 22 1/16W 22 1/16W NC C11 NC C18

POL LP TP73 STV1 CPV TP74 OE TP76

R188

R189

47 1/16W

B_D13

10K 1/16W

RST

CLKAP/LVB3P/LHSYNC RSDS/LVDS/TTL 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

R532 R533

NC NC

5V R182

B_D17 B_D16 B_D15 B_D14

R1 R2 GND GND GND C25 NC C26 NC C42 NC 3.3V

22 1/16W STH_B 22 1/16W STH_F

4.7K 1/16W DDC_WP 5V

Q12 PMBS3906 R191 47 1/16W PWR_LEDG

GND TP84

WP

R31

100 1/16W

GND GNDTP79

5V

Q13 R198 PMBS3906 47 1/16W PWR_LEDB

R27

R33

SW5_MENU SW4_VOL+

PWR 5V

LEDG LEDB

5V 4.7K 1/16W 4.7K 1/16W 4.7K 1/16W 1K 1/16W

GND

TP80

TP77

TP85

GND GND GND GND GND GND

R24

13 38 41 47 96 116

C10 U1 8 7 100 1/16W 6 100 1/16W 5 VCC WP SCL SDA

0.1uF/16V

R11

R12

R534 R25 15K 1/16W AMP_MUTE AMP_STBY R536

NC

R199

R535 Q14 PMBS3904

220K 1/16W C160 0.1uF/16V

1

VOLUME

4.7K 1/16W

R30

R32

GND
SCL SDA

R7 R8

A0 A1 A2 GND

1 2 3 4 C43 NC GND GND GND C44 NC

AT24C16N-10SC-2.7 GND

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Model Title Date Rev:

GND

GND

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VG921m-2

VCC Vin

R2 C7
GND

C24

G

R5
ON/OFF IC_VCC D S

C5 C31 D15 R6 C35
LV1

Q1 R41
IC_VCC

CN1 CN1B

R40 R12
DBRT

R9 Q3

R10 R7 C6 R11
14 13 12 11 10 9 8 7 6

U1 C25
LOK ENSYNC ABRT DBRT BRS BRC LCC LCS FT AG COMP LV LI SI BTL PRL OUTL UGL VCCL LGL PGL BTR PRR OUTR UGR VCCR LGR PGR 23 22

FB1

3 4

C29 C30 U2
6.7 D2 D2 D1 D1 6 5 3 4 S2 G2 S1 G1

C32
LV2

C8

R19

T1
8 FB2

CN1A
1 2

25 24

C27
26 27 28 1 2

C36
8 7 1 5

CN2 CN2A

C26
16 15 2.3 4 FB3

1 2

C33 U3
3 4 S2 G2 S1 G1 D2 D2 D1 D1 6 5 LV3

R1 C1 C2

C4

R3 C3

R4 C18
5

18 17

C21
4 3

C28
19 20 21 1 2

C37
8 7 FB4

CN2B
3 4

R43
LV1

2 1

C19

C20

C34
LV4

D1

R8

C14

LI LV2

D10 R38 R39 R20 R34

D12

D2 R15 C15 R26
FB1

R16

2

1

JP10 D5

C9

C11 D7 R30
FB3

R36

4

3

R21
LI LV3 LI

R23 R27 D11 R31 D13

R17 D3
D

IC_VCC

Q2

C22 C10
G

C16 D6 C23 R18 D14 R25 R22 D4 R29 R28
FB2

R35 D8 R32
FB4

C12

R37

LV4

S

R24 R33

C17

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VG921m-2

F101 CN100 L 1 LF101 2 R101
CY101 VA101

R260A TH101 2 LF102 1 BD101 C114 +
C115 3

C260 R260B INVERTER C261 11.12 D260 R264 3 + C264 R262 R263 ZD260

R112

CX101

FG

R102

2

1

1

T101

+12V

ZD110

4

N

4 CY102

3

3

4

R113

CY104 R114 R123 R122 R121 R120 D240 U101 R124 6 5 4 3 Ilimit NC GND FB Vcc 5
9.10

L240 + R241 R235 C242

D110 Drain 1

+5.2V +5.2V/3A C243

7.8

R240A

D120 2

L120

R240B 6 C240

+
C244

+
C241

RTN

ZD120

R230
C123 C124 4

R234

+

PC201B ZD121 C120
3

1

PC201A R231 C231 + C232
A K2

R232

R IC230 R233

CY103

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Model Title Date Rev:

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VG921m-2

+12V

+ C501

C505

16

FB501
VS

15

8

U501 C502
OUTL 17 14 10 7 5 +
+

R501 CN501
1 2 3 4 5

C507 C508

4 9 6 11

INL INR

NC

VS

FB502
SPL

SPL SPR

R502 FB503 C509 C510 R504 R505

OUTR SVR VAROUT_R VAROUT_L
GND GND GND GND GND GND GND

+

FB504 C504 C511 R506 R507 C512

SPR

VOLUME STBY MUTE

12

C503
1 2 3 13 18 19 20

R508 R509

AUDIO_STBY

AUDIO_STBY
AUDIO_MUTE

AUDIO_MUTE

+5V

R503 R510 R512

Volume

R511

Q501

C506

Volome

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VG921m-2

9. PCB Layout Diagrams

47

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VG921m-2

48

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Confidential - Do Not Copy

VG921m-2

49

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Confidential - Do Not Copy

VG921m-2

50

ViewSonic Corporation

Confidential - Do Not Copy

VG921m-2

51

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VG921m-2

52

ViewSonic Corporation

Confidential - Do Not Copy

VG921m-2

SILKSCREEN-TOP

53

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Confidential - Do Not Copy

VG921m-2

TOP SIDE

54

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VG921m-2

10. Exploded Diagram and Exploded Parts List

55

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Confidential - Do Not Copy

VG921m-2

EXPLODED PARTS LIST ( VG921m-2 )
ViewSonic Model Number: VS11313 Rev: 1a Serial No. Prefix: QB8
Item ViewSonic P/N Ref. P/N Description Q'ty 1 E-00008261 30-V9211R53G001 VG921 SPEAKER 1.5W/8R 100mm 2 N/A 2 41-03010037G000 HX191 WALL MOUNT BRACKET 2 3 TAIWAN 1 190SEN1-A04 LIQUID CRYSTAL DEVICE HSD190SEN1-A N/A 4 40-01010054G000 VG921m Bezel ABS-HB TY4818A 1 5 C-00008256 40-02010023G000 VG921m Back Cover ABS-HB Black 1 N/A 6 40-03010028G000 VG921m Power Button ABS-HB 1 N/A 7 40-03010029G000 VG921m Function Botton ABS-HB 1 N/A 8 40-04060009G000 VG921m LED LENS PMMA 1 9 C-00008257 40-05010017G000 VG921m Arm Front Cover ABS-HB Black 1 10 C-00008258 40-05010018G000 VG921m Arm Back Cover ABS-HB Black 1 11 PL-00008085 1 40-06010018G000 VG921m Base ABS-HB Black N/A 12 1 40-07010006G000 VG921m Hinge Cover ABS-HB Black N/A 13 1 40-09010001G000 VG921m Cable Clipper Up ABS-HB Black N/A 14 1 40-09010002G000 VG921m Cable Clipper Down ABS-HB Black N/A 15 1 41-03010041G000 VG921 Hinge BKT R SECC,T=1mm N/A 16 1 41-03010071G000 VG921 Hinge BKT L SECC,T=1mm N/A 17 1 41-07010013G000 VG921m Hinge SECC , T=2mm N/A 18 1 41-08010001G000 VG921m Base Plate SECC , T=2mm N/A 19 1 42-01120014G000 VG921 mylar transparent 33.2x20.7x0.25t N/A 20 42-02110009G000 VG921m Rubber Pad 1 N/A 21 15 43-01030602G010 Screw M3*6 Pan Head Ni Tap N/A 22 43-01030802G110 SCREW M3x8 PAN WASHER NI TAP 4 N/A 23 43-02040602G000 Screw M4*6 Wafer Head Black-Ni Me 4 N/A 24 43-01041004G300 SCREW M4*10 PAN SPRING+WASHER BZ 4 N/A 25 43-04030802G010 SCREW M3*8 FLAT NI TAP 6 26 B-00008252 1 70-VG921000G000 VG921 Power KEY BOARD ASS'Y (Lead Free) 27 B-00008251 1 70-VG921001G000 VG921 KEY BOARD ASS'Y (Lead Free) N/A 28 42-02110009G000 VG921m Rubber Pad 5 29 M-00008001 1 42-04260007G000 Bird Logo Brand for Viewsonic AL+PC 30 PL-00008002 42-04170008G000 Name plate Brand for Viewsonic AL 1

56

ViewSonic Corporation

Confidential - Do Not Copy

VG921m-2

2

PACKING PART LIST ( VG921m-2 )
ViewSonic Model Number: VS11313 Rev: 1a
Item ViewSonic P/N 1 N/A 2 P-00008257 3 CB-00008097 4 P-00008258 5 DC-00008004 6 N/A 7 DC-00008213 8 P-00008005 9 A-00008004 10 CB-00008109 11 M-00008002 12 P-00008256 Ref. P/N 61-01000003G000 61-01000028G000 33-R3910501G000 61-01000033G000 62-07000013G000 62-0600003G000 72-01921M02G000 61-03000007G000 33-E3980011G000 33-R3910506G000 42-01260012G000 60-01000031G000 Location U171 pe bag 225 * 400 mm VG921 end cap-L EPS Cable signal D/15p(M) 1800mm-JHEN VG921 end cap-R EPS 8ms sticker Barcode label 76.2*76.2mm Vg921m packing ass'y Pe bag 500*650mm PWR cord TWN 125V/7A 1.8m 3C BLK Cable stereo phone(JHEN VEI) Mylar 393*318*0.1 for 19" VG921 carton viewsonic taiwan Q'ty 1 1 1 1 1 1 1 1 1 1 1 1

57

ViewSonic Corporation

Confidential - Do Not Copy

VG921m-2

11. Recommended Spare Parts List
RECOMMENDED SPARE PARTS LIST ( VG921m-2 )
ViewSonic Model Number: VS11313 Serial No. Prefix: QB8
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 Description Power Cord 125V/7A 1.8M 3C Taiwan Accessories : [Adapter, Remote Power Cord - 250V/10A 1.8M 3C BLK (China) Control;Power Power Cord - 125V/10A 1.8M 3C BLK (USA) Cord] Power Cord - 250V/10A 1.8M 3C BLK (Europe) Power + Inverter Board - 190SEN-A00 PC Board Assembly: [All Power Key Board ASS'Y (Lead Free) Key Board (Lead Free) PCBA] Front Panels Cabinets: [Front Panel, All Back Cover Covers, Base Front Cover - (Arm) Assembly] Back Cover (Arm) ECR/ECN ViewSonic P/N A-00008004 A-00008038 A-00008039 A-00008040 B-00008179 B-00008252 B-00008251 C-00008255 C-00008256 C-00008257 C-00008258 CB-00008097 CB-00008109 DC-00008001 DC-00008002 DC-00008003 DC-00008004 DC-00008213 DC-00008214 DC-00008215 E-00008260 E-00008261 M-00008001 M-00008002 P-00008004 P-00008005 P-00008243 P-00008256 P-00008257 P-00008258 PL-00008002 PL-00008085

Rev: 1a
Ref. P/N Location Universal number# 33-E3980011G000 33-E3980005G000 33-E3980000G000 33-E3980003G000 7055F00A01-B1 70-VG921000G000 70-VG921001G000 45-G9210116G000 40-02010023G000 40-05010017G000 40-05010018G000 33-R3910501G000 33-R3910506G000 62-07000009G000 62-07000010G000 62-07000011G000 62-07000013G000 72-01921M02G000 72-01921M03G000 72-01921M01G000 190SEN1-A04 30-V9211R53G001 42-04260007G000 42-01260012G000 61-03000003G000 61-03000007G000 61-03000010G000 60-01000031G000 61-01000028G000 61-01000033G000 42-04170008G000 40-06010018G000

Cables: [All Cable Video Cable - (Signal Cable - D/15P-15P(M)
Stereo AV Cable - JHEN VEI)

Documentation: Energy Star Label
[Quick Start Guide, CD Rom; Label] Label - (QC-Pass China) Hi-Pot Pass Label 8ms Sticker Packing Assy - (User Guide, QSG, CD) China Packing Assy - (User Guide, QSG, CD) Taiwan Packing Assy - (User Guide, QSG, CD) USA LCD Panel - HSD190SEN1-A Speaker 1.5W/8R 100mm Bird Logo Brand For Viewsonic Mylar 393*318*0.1(Protective Film) for 19 PE BAG 225*400MM PE BAG 500*650mm PE bag 700*700mm (CHN) Craft Box END CAP EPS END CAP-R EPS Name plate Brand for Viewsonic Pedestal (Base)

Electronic Components:
Miscellaneous: [Switch, Fan,

Packing Material: [Box,
Foam, Bags]

Plastics:
[Pedestal, Plate,

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

58

ViewSonic Corporation

Confidential - Do Not Copy

VG921m-2

BOM LIST ( VG921m-2 )
ViewSonic Model Number: VS11313 Rev: 1a Serial No. Prefix: QB8
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 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 ViewSonic P/N N/A N/A TAIWAN E-00008261 N/A CB-00008003 N/A A-00008003 CB-00008001 N/A A-00008039 A-00008040 A-00008038 A-00008004 CB-00008097 CB-00008109 N/A N/A N/A N/A C-00008256 N/A N/A N/A C-00008257 C-00008258 PL-00008085 N/A N/A N/A N/A N/A N/A N/A N/A N/A M-00008002 C-00008004 C-00008005 N/A PL-00008002 M-00008001 N/A N/A N/A N/A N/A N/A C-00008255 P-00008256 P-00008257 P-00008258 P-00008004 P-00008005 P-00008243 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A DC-00008001 DC-00008002 DC-00008003 DC-00008004 N/A N/A B-00008252 B-00008251 DC-00008215 DC-00008213 DC-00008214 Ref. P/N 04-1VG92100G000 06-VG322100G000 190SEN1-A04 30-V9211R53G001 33-00000004G000 33-00070500G000 33-00080000G000 33-00080002G000 33-00090501G000 33-E3910011G000 33-E3980000G000 33-E3980003G000 33-E3980005G000 33-E3980011G000 33-R3910501G000 33-R3910506G000 34-04170016G000 34-04170022G000 34-04170023G000 40-01010054G000 40-02010023G000 40-03010028G000 40-03010029G000 40-04060009G000 40-05010017G000 40-05010018G000 40-06010018G000 40-07010006G000 40-09010001G000 40-09010002G000 41-03010037G000 41-03010041G000 41-03010071G000 41-07010013G000 41-08010001G000 42-01120014G000 42-01260012G000 42-02110007G000 42-02110008G000 42-02110009G000 42-04170008G000 42-04260007G000 43-01030602G010 43-01030802G110 43-01041004G300 43-02040602G000 43-04030802G010 43-12030302G001 45-G9210116G000 60-01000031G000 61-01000028G000 61-01000033G000 61-03000003G000 61-03000007G000 61-03000010G000 62-02000021G000 62-02000023G000 62-03000017G000 62-03000018G000 62-04000011G000 62-05000026G000 62-06000003G000 62-06000004G000 62-06000005G000 62-06000006G000 62-07000009G000 62-07000010G000 62-07000011G000 62-07000013G000 62-07000014G000 62-07000015G000 70-VG921000G000 70-VG921001G000 72-01921M01G000 72-01921M02G000 72-01921M03G000 Description EDID VG921m-2 190ME13 EDID A Bin Code VG921m-2 AR HSD190ME13 A11R30.0 LIQUID CRYSTAL DEVICE HSD190SEN1-A VG921 SPEAKER 1.5W/8R 100mm PWR CORD EUR 250V/10A 1800MM 3C BLK CABLE STEREO PHONE SZE33261B PWR CORD AMERICAN(UL/CSA) 125V/10A 1800m PWR CORD CHINA 250V/10A 1800MM LF CABLE SIGNAL D/15P-15P(M)1800MM PWR CORD TAIWAN (BSMI) 125V/7A1800mm blk PWR CORD USA 125V/10A 1.8M 3C BLK"Linetek" PWR CORD EUR 250V/10A 1.8M 3C BLK"Linetek" PWR CORD CHN 250V/10A 1.8M 3C BLK"Linetek" PWR CORD TWN 125V/7A 1.8M 3C BLK "LintekLinetek" CABLE SIGNAL D/15P-15P(M)1800MM-JHEN VEI CABLE STEREO PHONE(JHEN VEI) AL FOIL W30*L220 AL. Foil W 10 x L 80 x t0.1mm AL. foil w10 x L30 x t0.1mm VG921m Bezel ABS-HB TY4818A VG921m Back Cover ABS-HB Black VG921m Power Button ABS-HB VG921m Function Botton ABS-HB VG921m LED LENS PMMA VG921m Arm Front Cover ABS-HB Black VG921m Arm Back Cover ABS-HB Black VG921m Base ABS-HB Black VG921m Hinge Cover ABS-HB Black VG921m Cable Clipper Up ABS-HB Black VG921m Cable Clipper Down ABS-HB Black HX191 WALL MOUNT BRACKET VG921 Hinge BKT R SECC, T=1mm VG921 Hinge BKT L SECC, T=1mm VG921m Hinge SECC , T=2mm VG921m Base Plate SECC , T=2mm VG921 mylar transparent 33.2x20.7x0.25t Mylar 393*318*0.1() for 19" Back cover of ESD rubber-1 Black 8*1.5 Back cover of ESD rubber-2 Black 7*1.5 VG921m Rubber Pad Name plate Brand for Viewsonic AL Bird Logo Brand for Viewsonic AL+PC Screw M3*6 Pan Head Ni Tap SCREW M3x8 PAN WASHER NI TAP SCREW M4*10 PAN SPRING+WASHER BZ ME Screw M4*6 Wafer Head Black-Ni Me SCREW M3*8 FLAT NI TAP Screw M3*3 Round washer Ni Me VG921m Bezel Sub-Assy VG921 Carton Viewsonic Taiwan VG921 END CAP EPS VG921 END CAP-R EPS U171 PE BAG 225*400MM PE BAG 500*650mm PE bag 700*700mm VG921m Base Guide VG921m Quick Start Taiwan ViewSonic Warranty USA ViewSonic Warranty China VG921m CD User Guide VG921 ID LABEL TAIWAN BARCODE LABEL 76.2*76.2MM BARCODE LABEL 50*25MM BARCODE LABEL 25*12MM Barcode label 35*4mm Energy Star Label QC-Pass Label Hi-Pot Pass Label 8ms sticker Customer label ViewSonic Customer label 180*100mm VG921 Power KEY BOARD ASS'Y (Lead Free) VG921 KEY BOARD ASS'Y (Lead Free) VG921m USA Packing assy VG921M CHINA PACKING ASSY VG921m Packing assy Location Universal number# Q'ty 4 4 4 8 1 4 1 1 4 1 1 1 1 1 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 8 4 4 4 4 4 4 8 16 24 4 4 60 16 16 16 24 16 4 4 4 4 4 4 1 4 4 1 1 4 4 4 4 4 4 4 1 4 3 1 1 4 4 1 1 2

59

ViewSonic Corporation

Confidential - Do Not Copy

VG921m-2

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