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Service Manual 
ViewSonic VX1962wm-1 
VX1962wmp-1 
Model No. VS11979 
19” COLOR TFT LCD Display  
(VX1962wm-1_ VX1962wmp-1_SM Rev. 1a Jan. 2008) 
ViewSonic 381 Brea Canyon Road, Walnut, California 91789 USA - (800) 888-8583  
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Copyright 
Copyright © 2008 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. 
Product disposal at end of product life 
The lamp in this product contains mercury. Please dis pose of in accordance with local, state or 
federal laws. 
Revision History 
Revision   SM Editing Date   ECR Number   Description of Changes   Editor 
1a   1/29/2008       Initial Release   Jamie Chang 
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TABLE OF CONTENTS 
1. Precautions and Safety Notices ......................................................................................... 1 
2. Specification ....................................................................................................................... 5 
3. Front Panel Function Control Description ..................................................................... 26 
4. Circuit Description............................................................................................................. 32 
5. Adjusting Procedure .......................................................................................................... 33 
6. Trouble Shooting Flow Chart ............................................................................................ 58 
7. Block Diagrams ................................................................................................................ 66 
8. Schematic Diagrams ........................................................................................................ 67 
9. PCB Layout Diagrams ...................................................................................................... 73 
10. Exploded Diagram And Spare Parts List........................................................................ 74 
11. Recommended Spare Parts List .................................................................................... 78 
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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:  
y Extremely hot, cold or humid environment.   
y Areas containing excessive dust and dirt.   
y Near any appliance generating a strong magnetic field.   
y 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 
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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    Incorrect Methods  
Only touch the metal-frame of the panel or the 
front cover of the monitor. 
Do not touch the surface of the polarizer. 
Surface of the panel is pressed by fingers and 
that may cause “ MURA “ 
Take out the Monitor from carton.   Take out the monitor by grasping the LCD 
panel. That may cause “ MURA“. 
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Correct Methods    Incorrect Methods  
Place the monitor on a clean & soft foam pad .  Place the monitor on foreign objects and 
that could scratch the surface of panel. 
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2. Specification  
Product definition and specification 
VSA VSAP VSE VSCN 
Region 
(M) 
(A)/(P)/(J)/
(E)/(U) (G) 
(S)/(K) 
Product Name   VX1962wm/wmp 
Model Number   VS11979 
English, French, German, Italian, Spanish, Finnish, 
OSD Languages 
Russian, Korean, Japanese, Traditional Chinese, 
Simplified Chinese 
TFT LCD Panel and Model #   CMO A190Z1 L01 
Scalar   Model # : NT68670HTFG 
Input Signal   D-Sub / DVI-D 
Sync Compatibility   Separate / Composite / SOG 
Power Consumption   Built-in/ under 49W (max) / 44W(typ) 
Audio cable (1.8m / color: black)   Yes 
Power Cable   Refer to Appendix G 
Analog Cable (1.8 m, color : black), with 
YES 
PC 2001 and Hot Plug Detect &DDC 
DVI-D Cable / 1.8m   YES 
Arabic, English, Finnish, Spanish, German, 
ViewSonic CD Wizard 
Italian, Japanese, Swedish, Polish, Korean 
Portuguese, Russian, French, Greek, Dutch, 
ViewSonic Quick Start Guide 
Turkish, Simplified Chinese, Traditional Chinese, 
Czech, Hungarian 
Screen Protector Mylar   YES 
Extrme Label (2ms)   No 
Service Insert (new version) 
Warranty Card (China only) 
Carton Sticker (China only) 
PE bag of Carton 
YES NO NO NO 
NO NO NO YES 
NO NO NO YES 
NO NO NO YES 
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2-1 GENERAL specification 
Test Resolution & Frequency   1680x1050@ 60Hz 
Test Image Size   Full Size 
Contrast and Brightness Controls 
Factory Default:  
Contrast = 70%, Brightness = 100% 
2-2 VIDEO INTERFACE 
Analog Input Connector   DB-15 (Analog), refer the appendix A 
Digital Input Connector   DVI-D 
Default Input Connector   Defaults to the first detected input 
Video Cable Strain Relief   Equal to twice the weight of the monitor for five minutes 
Video Cable Connector DB-15 
Compliant DDC/CI / DDC2B 
Pin out 
1. Video RGB (Analog) 
Video Signals 
Separate, Composite, and Sync on Green 
2. TMDS (Digital) 
Video Impedance   75 Ohms (Analog), 100 Ohms (Digital) 
Maximum PC Video Signal   950 mV with no damage to monitor 
Maximum Mac Video Signal   1250 mV with no damage to monitor 
Sync Signals   TTL 
DDC2B   Compliant with Revision 1.3 
DDC/CI   Compliant with Revision 1.1 
HDCP   HDCP code inside and compatible 
Sync Compatibility   Separate Sync, Composite Sync, SOG 
Shall be compatible with all PC type computers, Macintosh 
Video Compatibility 
computers, and after market  video cards 
640x350 640x400 640x480 720x400 
720x480 800x600 832x624 1024x768 
1152x864 1152x870 1280x720 1280x768 
Resolution Compatibility 
1280x960 1280x1024 1360x768 1400x1050 
1440x900 1600x1200 1680x1050    
The image vertical size might not be full screen. 
But the image vertical position should be at the center. 
Exclusions   Not compatible with interlaced video 
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2-3 POWER SUPPLY 
Internal Power Supply 
Input Voltage Range   AC90~264 (Worldwide) 
Input Frequency Range   47  to 64 Hertz 
Short Circuit Protection   Output can be shorted without damage 
Over Current Protection   3.0~4.0A  typ. at 5 VDC ( Protect when short circuit ) 
Leakage Current   3.5mA (Max) at 264VAC / 50Hz 
Efficiency   80 % typical at 115VAC Full Load 
Fuse   Internal and not user replaceable 
Power Dissipation   < 49 Watts (Max) 
Max Input AC Current   1.6A (max) 
Inrush Current  
(Cold Start) 
Power Supply Cold Start 
Power Supply Transient Immunity 
Part Number: BK.00092.101(DARFON),  
PCA040FD-021-P-R(PHIHONG) 
80 A Max./ 240VAC / 50Hz   
(Cold Start at 25℃,Full Load) 
Shall start and function properly when under full load, with all 
combinations of input voltage, input frequency, and operating 
temperature 
Shall be able to withstand an ANSI/IEEE C62.41-1980 6000V 200 
ampere ring wave transient test with no damage 
Power Supply Line Surge Immunity 
Power Supply Missing Cycle Immunity  
Power Supply Acoustics 
US Type Power Cable  
Color = Black / White 
European Type Power Cable 
Color = Black / White 
CCC Type Power Cable  
Color = Black / White 
PSE Type Power Cable 
Color = Black / White 
Shall be able to withstand 1.5 times nominal line voltage for one cycle 
with no damage 
Shall be able to function properly, without reset or visible screen 
artifacts, when ½ cycle of AC power is randomly missing at nominal 
input 
The power supply shall not produce audible noise that would be 
detectable by the user.  Audible shall define 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 = 1.8m. Connects to 
display. 
Schuko CEE7-7 type plug. 
Length = 1.8m, Connects to display.  
Separate 3-prong type plug.   
Length = 1.8m. Connects to display. 
Separate 2-prong NEMA 1-15P type plug.   
Length = 1.8m. Connects to display. 
Power Saving Operation(Method)   VESA DPMS Signaling 
On Mode <44W (Typ) / under 49W (Max) 
Power Consumption 
Recovery Time   On Mode = N/A, Active Off < 3 sec 
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Saving Mode < 2 W 
Off Mode < 1 W  
(DC Power Off; Meet to Energy Star Ver4.0 Tier2) 
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2-4 ELECTRICAL REQUIREMENT 
Horizontal / Vertical Frequency 
Horizontal Frequency 
Vertical Refresh Rate 
24 – 82 kHz  
50 – 85* Hz 
Maximum Pixel Clock   165MHz, 
Sync Polarity   Independent of sync polarity. 
Timing Table 
Analog 
Composite 
Separate 
Item Timing 
1   640 x 350   @ 70 Hz,   32   kHz  V  V  V  V   
2   640 x 400   @ 60 Hz,   32   kHz  V  V  V  V   
3   640 x 400   @ 70 Hz,   32   kHz  V  V  V  V   
4   640 x 480   @ 50 Hz,   25   kHz  V  V  V
5   640 x 480   @ 60 Hz,   32   kHz  V  V  V  V   
6   640 x 480   @ 67 Hz,   35   kHz  V  V  V  V   
7   640 x 480   @ 72 Hz   38   kHz  V  V  V  V   
Digital - TMDS 
SOG 
X
Remark 
8   640 x 480   @ 75 Hz,   38   kHz  V  V  V  V   
9   720 x 400   @ 70 Hz,   32   kHz  V  V  V  V   
10 720 x 480   @ 60 Hz, 29.8 kHz  V  V  V  V   
11 720 x 576   @ 50 Hz, 31.3 kHz  V  V  V  V   
12 800 x 600   @ 56 Hz, 35.1 kHz  V  V  V  V   
13 800 x 600   @ 60 Hz,   38   kHz  V  V  V  V   
14 800 x 600   @ 72 Hz,   48   kHz  V  V  V  V   
15 800 x 600   @ 75 Hz,   47   kHz  V  V  V  V   
16 832 x 624   @ 75 Hz,   50   kHz  V  V  V  V   
17 1024 x 768   @ 50 Hz,   40   kHz  V  V  V  V   
18 1024 x 768   @ 60 Hz,   48   kHz  V  V  V  V   
19 1024 x 768   @ 70 Hz,   57   kHz  V  V  V  V   
20 1024 x 768   @ 72 Hz, 58.1 KHz  V  V  V  V   
21 1024 x 768   @ 75 Hz,   60 KHz  V  V  V  V   
22 1024 x 768   @ 75 Hz, 60.2 KHz  V  V  V  V   
23 1152 x 864   @ 75 Hz,   68 KHz  V  V  V  V   
24 1152 x 870   @ 75 Hz,   69 KHz  V  V  V  V   
25 1280 x 720   @ 50 Hz,   37 KHz  V
26 1280 x 720   @ 60 Hz,   45 KHz  V
27 1280 x 768   @ 50 Hz,   40 KHz  V  V  V  V   
28 1280 x 768   @ 60 Hz, 47.8 KHz  V  V  V  V   
29 1280 x 768   @ 75 Hz,   60 KHz  V  V  V  V   
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30 1280 x 960   @ 50 Hz,   49 KHz  V  V  V  V    
31 1280 x 960   @ 60 Hz,   60 KHz  V  V  V  V    
32 1280 x 960   @ 75 Hz,   75 KHz  V  V  V  V    
33 1280 x 1024 @ 50 Hz,   53 KHz  V  V  V  V    
34 1280 x 1024 @ 60 Hz,   64 KHz  V  V  V  V  
35 1280 x 1024 @ 75 Hz,   80 KHz  V  V  V  V  
36 1360 x 768   @ 60 Hz,   48 kHz  V  V  V  V 
37 1400 x 1050 @ 50 Hz,   54 kHz  V  V  V  V  
For analog sync,  
Switch 1400 x 1050@60Hz and 1680 x 
1050@60Hz by [1]+[2] short cut key 
38 1400 x 1050 @ 60 Hz, 65.3 kHz  V  V
39 1440 x 900   @ 60 Hz, 55.9 kHz  V  V  V  V  
40 1440 x 900   @ 75 Hz, 70.6 kHz  V  V  V  V  
41 1600 x 1200 @ 60 Hz,   75 kHz  V  V  V  V
42 1680 x 1050 @ 60 Hz, 65.3 kHz
V
X
V
X
(primary = 1680 x 1050@60Hz) 
V
Auto image should be executed when Switch 
1400 x 1050@60Hz and 1680 x 1050@60Hz 
by [1]+[2] short cut key 
V
*1. Tolerance ≧  ±2KHz. (if the range dose not cover other timing mode) 
*2. Any timing not in the list, it should display as normal or show on “OUT OF RANGE” OSD message with 
blanking. 
*3. The image quality of 85Hz mode might be worse than 75Hz. 
Primary Presets 
 1680x1050 @ 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 
Image Adjust” time  
●  Under DOS mode (640 x 350, 720 x 400 & 640 x 400),  it should recall factory setting when 
execute “Auto Image Adjust” 
●  The monitor needs to do “Auto Adjust” the first time when a new mode is detected 
(See section “0-Touch™ Function Actions”)  
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2-5 FRONT PANEL CONTROLS AND INDICATORS 
All the functions in this segment shall be able to be controlled through DDC/CI function. 
Front Panel Hardware Controls 
Power Switch   AC Power Switch on the back cover  
Soft Power Switch on the front bezel  
Power LED (Front Head)   Blue – ON 
Amber – Active Off 
Dark = Soft Power Switch OFF 
Front Panel Controls (Head) 
[ 1 ] [ 2 ] [ ] [▲ ] [▼ ] 
[ ] 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 
Short Cuts Function from the button(s) 
Main Menu 
[1] 
(refer to segment 4-5-3) 
[2]   Input toggle (D-sub/DVI); refer to Appendix D) 
[▼ ]   To immediately activate Audio menu.  
[▲ ] 
[▼ ]+ [▲ ] 
[1] + [2] 
[1] + [▼ ] + [▲ ] 
(Keep pushing 5 sec) 
To immediately activate Contrast menu. It should be change to 
Brightness OSD by push button [2] 
(refer to the Contrast OSD in segment 4-5-3) 
*1 refer to the Brightness OSD in segment 4-5-3 
*2 Under sRGB or DCR mode, this function is disabled.  
1. In the CR/ BT menu, Recall both of Contrast and Brightness to 
default without OSD message. 
2. In the Audio menu, Recall both of audio volume and mute to 
default without OSD message. 
1. Toggle 720x400 and 640x400 mode when input 720x400 or 
640x400 mode. 
2. Toggle 1400x1050 and 1680x1050 mode when input 1400x1050 
or 1680x1050mode. 
White Balance 
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1. It will not shown on user’s guide 
2. OSD message as below, 
 (Image = no blanking) 
3. Recommend environment 
    3.1. Optical (Best) input timing = 640 x 480 @ 60Hz; 
      Following timing modes also recommended, 
      800 x 600 @ 60 Hz 
1024 X 768 @ 60 Hz 
  3.2. Pattern as below, 
[1] + [▲]   OSD Lock / Unlock (refer to segment 4-6-4)  
[1] + [▼ ]   Power Lock / Unlock (refer to segment 4-6-5) 
Toggle DDC/CI and DDC/2B (DDC/CI enable/disable) and show 
following message for 3 seconds, 
When switch to DDC/CI 
[2] + [▼]  
When switch to DDC/2B 
Default = DDC/CI 
Signal + [2] + [ ]   Factory Mode  
Remark : All the short cuts function are only available while OSD off 
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2-6 AUDIO INTERFACE (SPEAKER SPECIFICATION) 
Line input signal   1.0 Vrms @1kHz  
Line input impedance 
Maximum Amp power output (Watt) 
>47Kohm 
3W 
Amp -THD   < 10 % THD @1kHz   
Speaker Power rating(Ω/Watt)  
4Ω/ 3 W  
Signal to Noise Ratio     
Frequency response   Fo – 20kHz  
SPL. 
79 ± 3  dB (at 0.5m) 
FO   470 Hz   
Line input connection 
3.5 mm stereo jack 
There should be no audible vibration resonance 
Vibration 
  volume=100% & any Freq.  
at
There should be no affect on the screen image 
Screen image 
stability under any conditions 
Connector PC99 requirement Audio in 
Lime Green pantone # 577C 
Cable type / length   3.5mm stereo cable / 1.8m length 
SPEAKERS STAY OFF WHEN THE REST OF THE 
MONITOR IS IN POWER SAVING 
Audio DPMS 
NOTE: THERE IS NO GUARANTEE <1  W AT POWER 
CONSUMPTION IN ACTIVE OFF MODE, WHEN THE 
AUDIO CABLE IS CONNECTED 
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2-7 TFT LCD PANEL 
Panel Characteristics:  
1st Source Panel 
Model number   CMO A190Z1 L01 
Type   TN type with RSDS interface 
Active Size    19” wide; 408.24(H) x  255.15(V) 
Pixel Arrangement   RGB Vertical Stripe 
Pixel Pitch   0.243(H) x 0.243(H) mm 
Glass Treatment   Anti Glare (Hard coating 3H) 
# of Backlights   4 CCFL 
Backlight Life   40000 Hours (Min) 
Luminance (5-point) –  
Condition: 
300 cd/m2 (Typ after 30 minute warm up) 
CT = User Color,  
230 cd/m2 (Min after 30 minute warm up) 
Contrast = Max,  
Brightness = Max 
Brightness Uniformity 
≧ 67% (min) 
Contrast Ratio   1000:1 (typ), 630:1(min) 
Color Depth   16.2 million colors  
@ CR>10  
Viewing Angle (Horizontal) 
Typical:  170 
Ultra –TN type 
Minimum: 150 
@ CR>10 
Viewing Angle (Vertical) 
Typical:   150 
Ultra –TN type 
Minimum: 130 
Response Time 
10%-90% @ Ta=25°C 
Typical = 5ms (on/off) 
Maximum = 15ms (on/off) 
Panel Defects   Please see Panel Quality Specifications. 
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VX1962wm / Analog EDID  
              Time: 12:01:01 
            Date: Fri Sep 21, 2007 
______________________________________________________________________ 
______________________________________________________________________ 
            VIEWSONIC CORPORATION 
          EDID Version # 1, Revision # 3 
          DDCTest For: ViewSonic VX1962wm 
______________________________________________________________________ 
______________________________________________________________________ 
EDID Block 0, Bytes 0-127 
128 BYTES OF EDID CODE: 
     0  1  2  3  4  5  6  7  8  9 
   ________________________________________ 
 0 | 00 FF FF FF FF FF FF 00 5A 63 
 10 | 20 D9 01 01 01 01 01 11 01 03 
 20 | 0E 29 1A 78 2E EE D5 A5 55 48 
 30 | 9B 26 12 50 54 BF EF 80 B3 00 
 40 | A9 40 95 00 90 40 81 80 81 40 
 50 | 71 4F 01 01 21 39 90 30 62 1A 
 60 | 27 40 68 B0 36 00 98 FF 10 00 
 70 | 00 1C 00 00 00 FF 00 51 55 4A 
 80 | 30 37 30 31 30 30 30 30 31 0A 
 90 | 00 00 00 FD 00 32 4B 1E 52 11 
100 | 00 0A 20 20 20 20 20 20 00 00 
110 | 00 FC 00 56 58 31 39 36 32 77 
120 | 6D 0A 20 20 20 20 00 A1 
______________________________________________________________________ 
(08-09) ID Manufacturer Name ________________  = VSC 
(11-10) Product ID Code _____________________  = D920 
(12-15)  Last 5 Digits of Serial Number ______  = Not Used 
(16)   Week of Manufacture _________________  = 01 
(17)   Year of Manufacture _________________ = 2007 
(10-17)  Complete Serial Number ______________  = See Descriptor Block 
(18)   EDID Version Number _________________  = 1 
(19)   EDID Revision Number ________________  = 3 
(20)   VIDEO INPUT DEFINITION: 
     Analog Signal 
     0.700, 0.300 (1.000 Vp-p) 
     Separate Syncs, Composite Sync, Sync on Green 
(21)   Maximum Horizontal Image Size ________________  = 410 mm 
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(22)   Maximum Vertical Image Size __________________  = 260 mm 
(23)   Display Gamma ________________________________   = 2.20 
(24)   Power Management and Supported Feature(s): 
     Active Off/Very Low Power, Standard Default Color Space, 
     Preferred Timing Mode 
     Display Type = R/G/B Color 
(25-34) CHROMA INFO: 
     Red X - 0.647 Green X - 0.284 Blue X - 0.151 White X - 0.313 
     Red Y - 0.334 Green Y - 0.607 Blue Y - 0.071 White Y - 0.329 
(35)   ESTABLISHED TIMING I: 
     720 X 400 @ 70Hz (IBM,VGA) 
     640 X 480 @ 60Hz (IBM,VGA) 
     640 X 480 @ 67Hz (Apple,Mac II) 
     640 X 480 @ 72Hz (VESA) 
     640 X 480 @ 75Hz (VESA) 
     800 X 600 @ 56Hz (VESA) 
     800 X 600 @ 60Hz (VESA) 
(36)   ESTABLISHED TIMING II: 
     800 X 600 @ 72Hz (VESA) 
     800 X 600 @ 75Hz (VESA) 
     832 X 624 @ 75Hz (Apple,Mac II) 
     1024 X 768 @ 60Hz (VESA) 
     1024 X 768 @ 70Hz (VESA) 
     1024 X 768 @ 75Hz (VESA) 
     1280 X 1024 @ 75Hz (VESA) 
(37)   Manufacturer's Reserved Timing: 
     1152 X 870 @ 75Hz (Apple,Mac II) 
(38-53) Standard Timing Identification: 
     1680 X 1050 @60Hz 
     1600 X 1200 @60Hz 
     1440 X 900 @60Hz 
     1400 X 1050 @60Hz 
     1280 X 1024 @60Hz 
     1280 X 960 @60Hz 
     1152 X 864 @75Hz 
     Not Used 
______________________________________________________________________ 
(54-71) Detailed Timing / Descriptor Block 1: 
         1680x1050 Pixel Clock: 146.25 MHz 
______________________________________________________________________ 
     Horizontal Image Size: 408 mm   Vertical Image Size: 255 mm 
     Refreshed Mode: Non-Interlaced  Normal Display - No Stereo 
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Horizontal: 
     Active Time: 1680 pixels     Blanking Time: 560 pixels 
     Sync Offset: 104 pixels      Sync Pulse Width: 176 pixels 
     Border: 0 pixels         Frequency: 65.29 KHz 
Vertical: 
     Active Time: 1050 lines      Blanking Time: 39 lines 
     Sync Offset: 3 lines       Sync Pulse Width: 6 lines 
     Border: 0 lines          Frequency: 59.95 Hz 
Digital Separate, Horizontal Polarity (-) Vertical Polarity (+) 
______________________________________________________________________ 
(72-89) Detailed Timing / Descriptor Block 2: 
     Monitor Serial Number: 
     QUJ070100001 
______________________________________________________________________ 
(90-107) Detailed Timing / Descriptor Block 3: 
     Monitor Range Limits: 
     Min Vertical Freq - 50 Hz 
     Max Vertical Freq - 75 Hz 
     Min Horiz. Freq - 30 KHz 
     Max Horiz. Freq - 82 KHz 
     Pixel Clock - 170 MHz 
     Secondary GTF - Not Supported 
______________________________________________________________________ 
(108-125) Detailed Timing / Descriptor Block 4: 
     Monitor Name: 
     VX1962wm 
(126)  No Extension EDID Block(s) 
(127)  CheckSum OK 
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VX1962wm / Digital 
              Time: 12:01:18 
            Date: Fri Sep 21, 2007 
______________________________________________________________________ 
______________________________________________________________________ 
            VIEWSONIC CORPORATION 
          EDID Version # 1, Revision # 3 
          DDCTest For: ViewSonic VX1962wm 
______________________________________________________________________ 
______________________________________________________________________ 
EDID Block 0, Bytes 0-127 
128 BYTES OF EDID CODE: 
     0  1  2  3  4  5  6  7  8  9 
   ________________________________________ 
 0 | 00 FF FF FF FF FF FF 00 5A 63 
 10 | 20 D9 01 01 01 01 01 11 01 03 
 20 | 80 29 1A 78 2E EE D5 A5 55 48 
 30 | 9B 26 12 50 54 BF EF 80 B3 00 
 40 | A9 40 95 00 90 40 81 80 81 40 
 50 | 71 4F 31 0A 21 39 90 30 62 1A 
 60 | 27 40 68 B0 36 00 98 FF 10 00 
 70 | 00 1C 00 00 00 FF 00 51 55 4A 
 80 | 30 37 30 31 30 30 30 30 31 0A 
 90 | 00 00 00 FD 00 32 4B 1E 52 11 
100 | 00 0A 20 20 20 20 20 20 00 00 
110 | 00 FC 00 56 58 31 39 36 32 77 
120 | 6D 0A 20 20 20 20 00 F6 
______________________________________________________________________ 
(08-09) ID Manufacturer Name ________________  = VSC 
(11-10) Product ID Code _____________________  = D920 
(12-15)  Last 5 Digits of Serial Number ______  = Not Used 
(16)   Week of Manufacture _________________  = 01 
(17)   Year of Manufacture _________________ = 2007 
(10-17)  Complete Serial Number ______________  = See Descriptor Block 
(18)   EDID Version Number _________________  = 1 
(19)   EDID Revision Number ________________  = 3 
(20)   VIDEO INPUT DEFINITION: 
     Digital Signal 
     Non - VESA DFP 1.x Compatible             
(21)   Maximum Horizontal Image Size ________________  = 410 mm 
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(22)   Maximum Vertical Image Size __________________  = 260 mm 
(23)   Display Gamma ________________________________  = 2.20 
(24)   Power Management and Supported Feature(s): 
     Active Off/Very Low Power, Standard Default Color Space, 
     Preferred Timing Mode 
     Display Type = R/G/B Color 
(25-34) CHROMA INFO: 
     Red X - 0.647 Green X - 0.284 Blue X - 0.151 White X - 0.313 
     Red Y - 0.334 Green Y - 0.607 Blue Y - 0.071 White Y - 0.329 
(35)   ESTABLISHED TIMING I: 
     720 X 400 @ 70Hz (IBM,VGA) 
     640 X 480 @ 60Hz (IBM,VGA) 
     640 X 480 @ 67Hz (Apple,Mac II) 
     640 X 480 @ 72Hz (VESA) 
     640 X 480 @ 75Hz (VESA) 
     800 X 600 @ 56Hz (VESA) 
     800 X 600 @ 60Hz (VESA) 
(36)   ESTABLISHED TIMING II: 
     800 X 600 @ 72Hz (VESA) 
     800 X 600 @ 75Hz (VESA) 
     832 X 624 @ 75Hz (Apple,Mac II) 
     1024 X 768 @ 60Hz (VESA) 
     1024 X 768 @ 70Hz (VESA) 
     1024 X 768 @ 75Hz (VESA) 
     1280 X 1024 @ 75Hz (VESA) 
(37)   Manufacturer's Reserved Timing: 
     1152 X 870 @ 75Hz (Apple,Mac II) 
(38-53) Standard Timing Identification: 
     1680 X 1050 @60Hz 
     1600 X 1200 @60Hz 
     1440 X 900 @60Hz 
     1400 X 1050 @60Hz 
     1280 X 1024 @60Hz 
     1280 X 960 @60Hz 
     1152 X 864 @75Hz 
     640 X 400 @70Hz 
______________________________________________________________________ 
(54-71) Detailed Timing / Descriptor Block 1: 
         1680x1050 Pixel Clock: 146.25 MHz 
______________________________________________________________________ 
     Horizontal Image Size: 408 mm   Vertical Image Size: 255 mm 
     Refreshed Mode: Non-Interlaced  Normal Display - No Stereo 
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Horizontal: 
     Active Time: 1680 pixels     Blanking Time: 560 pixels 
     Sync Offset: 104 pixels      Sync Pulse Width: 176 pixels 
     Border: 0 pixels         Frequency: 65.29 KHz 
Vertical: 
     Active Time: 1050 lines      Blanking Time: 39 lines 
     Sync Offset: 3 lines       Sync Pulse Width: 6 lines 
     Border: 0 lines          Frequency: 59.95 Hz 
Digital Separate, Horizontal Polarity (-) Vertical Polarity (+) 
______________________________________________________________________ 
(72-89) Detailed Timing / Descriptor Block 2: 
     Monitor Serial Number: 
     QUJ070100001 
______________________________________________________________________ 
(90-107) Detailed Timing / Descriptor Block 3: 
     Monitor Range Limits: 
     Min Vertical Freq - 50 Hz 
     Max Vertical Freq - 75 Hz 
     Min Horiz. Freq - 30 KHz 
     Max Horiz. Freq - 82 KHz 
     Pixel Clock - 170 MHz 
     Secondary GTF - Not Supported 
______________________________________________________________________ 
(108-125) Detailed Timing / Descriptor Block 4: 
     Monitor Name: 
     VX1962wm 
(126)  No Extension EDID Block(s) 
(127)  CheckSum OK 
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1962wmp / analog 
                Time: 08:51:55 
            Date: Mon Oct 01, 2007 
______________________________________________________________________ 
______________________________________________________________________ 
            VIEWSONIC CORPORATION 
          EDID Version # 1, Revision # 3 
          DDCTest For: ViewSonic VX1962wmp 
______________________________________________________________________ 
______________________________________________________________________ 
EDID Block 0, Bytes 0-127 
128 BYTES OF EDID CODE: 
     0  1  2  3  4  5  6  7  8  9 
   ________________________________________ 
 0 | 00 FF FF FF FF FF FF 00 5A 63 
 10 | 20 D9 01 01 01 01 01 11 01 03 
 20 | 0E 29 1A 78 2E EE D5 A5 55 48 
 30 | 9B 26 12 50 54 BF EF 80 B3 00 
 40 | A9 40 95 00 90 40 81 80 81 40 
 50 | 71 4F 01 01 21 39 90 30 62 1A 
 60 | 27 40 68 B0 36 00 98 FF 10 00 
 70 | 00 1C 00 00 00 FF 00 51 57 41 
 80 | 30 37 30 31 30 30 30 30 31 0A 
 90 | 00 00 00 FD 00 32 4B 1E 52 11 
100 | 00 0A 20 20 20 20 20 20 00 00 
110 | 00 FC 00 56 58 31 39 36 32 77 
120 | 6D 70 0A 20 20 20 00 58 
______________________________________________________________________ 
(08-09) ID Manufacturer Name ________________  = VSC 
(11-10) Product ID Code _____________________  = D920 
(12-15)  Last 5 Digits of Serial Number ______  = Not Used 
(16)   Week of Manufacture _________________  = 01 
(17)   Year of Manufacture _________________ = 2007 
(10-17)  Complete Serial Number ______________  = See Descriptor Block 
(18)   EDID Version Number _________________  = 1 
(19)   EDID Revision Number ________________  = 3 
(20)   VIDEO INPUT DEFINITION: 
     Analog Signal 
     0.700, 0.300 (1.000 Vp-p) 
     Separate Syncs, Composite Sync, Sync on Green 
(21)   Maximum Horizontal Image Size ________________  = 410 mm 
(22)   Maximum Vertical Image Size __________________  = 260 mm 
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(23)   Display Gamma ________________________________  = 2.20 
(24)   Power Management and Supported Feature(s): 
     Active Off/Very Low Power, Standard Default Color Space, 
     Preferred Timing Mode 
     Display Type = R/G/B Color 
(25-34) CHROMA INFO: 
     Red X - 0.647 Green X - 0.284 Blue X - 0.151 White X - 0.313 
     Red Y - 0.334 Green Y - 0.607 Blue Y - 0.071 White Y - 0.329 
(35)   ESTABLISHED TIMING I: 
     720 X 400 @ 70Hz (IBM,VGA) 
     640 X 480 @ 60Hz (IBM,VGA) 
     640 X 480 @ 67Hz (Apple,Mac II) 
     640 X 480 @ 72Hz (VESA) 
     640 X 480 @ 75Hz (VESA) 
     800 X 600 @ 56Hz (VESA) 
     800 X 600 @ 60Hz (VESA) 
(36)   ESTABLISHED TIMING II: 
     800 X 600 @ 72Hz (VESA) 
     800 X 600 @ 75Hz (VESA) 
     832 X 624 @ 75Hz (Apple,Mac II) 
     1024 X 768 @ 60Hz (VESA) 
     1024 X 768 @ 70Hz (VESA) 
     1024 X 768 @ 75Hz (VESA) 
     1280 X 1024 @ 75Hz (VESA) 
(37)   Manufacturer's Reserved Timing: 
     1152 X 870 @ 75Hz (Apple,Mac II) 
(38-53) Standard Timing Identification: 
     1680 X 1050 @60Hz 
     1600 X 1200 @60Hz 
     1440 X 900 @60Hz 
     1400 X 1050 @60Hz 
     1280 X 1024 @60Hz 
     1280 X 960 @60Hz 
     1152 X 864 @75Hz 
     Not Used 
______________________________________________________________________ 
(54-71) Detailed Timing / Descriptor Block 1: 
         1680x1050 Pixel Clock: 146.25 MHz 
______________________________________________________________________ 
     Horizontal Image Size: 408 mm   Vertical Image Size: 255 mm 
     Refreshed Mode: Non-Interlaced  Normal Display - No Stereo 
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Horizontal: 
     Active Time: 1680 pixels     Blanking Time: 560 pixels 
     Sync Offset: 104 pixels      Sync Pulse Width: 176 pixels 
     Border: 0 pixels         Frequency: 65.29 KHz 
Vertical: 
     Active Time: 1050 lines      Blanking Time: 39 lines 
     Sync Offset: 3 lines       Sync Pulse Width: 6 lines 
     Border: 0 lines          Frequency: 59.95 Hz 
Digital Separate, Horizontal Polarity (-) Vertical Polarity (+) 
______________________________________________________________________ 
(72-89) Detailed Timing / Descriptor Block 2: 
     Monitor Serial Number: 
     QWA070100001 
______________________________________________________________________ 
(90-107) Detailed Timing / Descriptor Block 3: 
     Monitor Range Limits: 
     Min Vertical Freq - 50 Hz 
     Max Vertical Freq - 75 Hz 
     Min Horiz. Freq - 30 KHz 
     Max Horiz. Freq - 82 KHz 
     Pixel Clock - 170 MHz 
     Secondary GTF - Not Supported 
______________________________________________________________________ 
(108-125) Detailed Timing / Descriptor Block 4: 
     Monitor Name: 
     VX1962wmp 
 (126)  No Extension EDID Block(s) 
(127)  CheckSum OK 
 22  
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VX1962wmp / digital 
              Time: 08:52:30 
            Date: Mon Oct 01, 2007 
______________________________________________________________________ 
______________________________________________________________________ 
            VIEWSONIC CORPORATION 
          EDID Version # 1, Revision # 3 
          DDCTest For: ViewSonic VX1962wmp 
______________________________________________________________________ 
______________________________________________________________________ 
EDID Block 0, Bytes 0-127 
128 BYTES OF EDID CODE: 
     0  1  2  3  4  5  6  7  8  9 
   ________________________________________ 
 0 | 00 FF FF FF FF FF FF 00 5A 63 
 10 | 20 D9 01 01 01 01 01 11 01 03 
 20 | 80 29 1A 78 2E EE D5 A5 55 48 
 30 | 9B 26 12 50 54 BF EF 80 B3 00 
 40 | A9 40 95 00 90 40 81 80 81 40 
 50 | 71 4F 31 0A 21 39 90 30 62 1A 
 60 | 27 40 68 B0 36 00 98 FF 10 00 
 70 | 00 1C 00 00 00 FF 00 51 57 41 
 80 | 30 37 30 31 30 30 30 30 31 0A 
 90 | 00 00 00 FD 00 32 4B 1E 52 11 
100 | 00 0A 20 20 20 20 20 20 00 00 
110 | 00 FC 00 56 58 31 39 36 32 77 
120 | 6D 70 0A 20 20 20 00 AD 
______________________________________________________________________ 
(08-09) ID Manufacturer Name ________________  = VSC 
(11-10) Product ID Code _____________________  = D920 
(12-15)  Last 5 Digits of Serial Number ______  = Not Used 
(16)   Week of Manufacture _________________  = 01 
(17)   Year of Manufacture _________________ = 2007 
(10-17)  Complete Serial Number ______________  = See Descriptor Block 
(18)   EDID Version Number _________________  = 1 
(19)   EDID Revision Number ________________  = 3 
(20)   VIDEO INPUT DEFINITION: 
     Digital Signal 
     Non - VESA DFP 1.x Compatible             
(21)   Maximum Horizontal Image Size ________________  = 410 mm 
(22)   Maximum Vertical Image Size __________________  = 260 mm 
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(23)   Display Gamma ________________________________   = 2.20 
(24)   Power Management and Supported Feature(s): 
     Active Off/Very Low Power, Standard Default Color Space, 
     Preferred Timing Mode 
     Display Type = R/G/B Color 
(25-34) CHROMA INFO: 
     Red X - 0.647 Green X - 0.284 Blue X - 0.151 White X - 0.313 
     Red Y - 0.334 Green Y - 0.607 Blue Y - 0.071 White Y - 0.329 
(35)   ESTABLISHED TIMING I: 
     720 X 400 @ 70Hz (IBM,VGA) 
     640 X 480 @ 60Hz (IBM,VGA) 
     640 X 480 @ 67Hz (Apple,Mac II) 
     640 X 480 @ 72Hz (VESA) 
     640 X 480 @ 75Hz (VESA) 
     800 X 600 @ 56Hz (VESA) 
     800 X 600 @ 60Hz (VESA) 
(36)   ESTABLISHED TIMING II: 
     800 X 600 @ 72Hz (VESA) 
     800 X 600 @ 75Hz (VESA) 
     832 X 624 @ 75Hz (Apple,Mac II) 
     1024 X 768 @ 60Hz (VESA) 
     1024 X 768 @ 70Hz (VESA) 
     1024 X 768 @ 75Hz (VESA) 
     1280 X 1024 @ 75Hz (VESA) 
(37)   Manufacturer's Reserved Timing: 
     1152 X 870 @ 75Hz (Apple,Mac II) 
(38-53) Standard Timing Identification: 
     1680 X 1050 @60Hz 
     1600 X 1200 @60Hz 
     1440 X 900 @60Hz 
     1400 X 1050 @60Hz 
     1280 X 1024 @60Hz 
     1280 X 960 @60Hz 
     1152 X 864 @75Hz 
     640 X 400 @70Hz 
______________________________________________________________________ 
(54-71) Detailed Timing / Descriptor Block 1: 
         1680x1050 Pixel Clock: 146.25 MHz 
______________________________________________________________________ 
     Horizontal Image Size: 408 mm   Vertical Image Size: 255 mm 
     Refreshed Mode: Non-Interlaced  Normal Display - No Stereo 
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Horizontal: 
     Active Time: 1680 pixels     Blanking Time: 560 pixels 
     Sync Offset: 104 pixels      Sync Pulse Width: 176 pixels 
     Border: 0 pixels         Frequency: 65.29 KHz 
Vertical: 
     Active Time: 1050 lines      Blanking Time: 39 lines 
     Sync Offset: 3 lines       Sync Pulse Width: 6 lines 
     Border: 0 lines          Frequency: 59.95 Hz 
Digital Separate, Horizontal Polarity (-) Vertical Polarity (+) 
______________________________________________________________________ 
(72-89) Detailed Timing / Descriptor Block 2: 
     Monitor Serial Number: 
     QWA070100001 
______________________________________________________________________ 
(90-107) Detailed Timing / Descriptor Block 3: 
     Monitor Range Limits: 
     Min Vertical Freq - 50 Hz 
     Max Vertical Freq - 75 Hz 
     Min Horiz. Freq - 30 KHz 
     Max Horiz. Freq - 82 KHz 
     Pixel Clock - 170 MHz 
     Secondary GTF - Not Supported 
______________________________________________________________________ 
(108-125) Detailed Timing / Descriptor Block 4: 
     Monitor Name: 
     VX1962wmp 
(126)  No Extension EDID Block(s) 
(127)  CheckSum OK 
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3. Front Panel Function Control Description  
Adjusting the Screen Image
Main Menu
with OSD controls
Front Control Panel
shown below in detail
Displays the control screen for the
highlighted control.
Also toggles between three controls
on some screens.
Also a shortcut to Auto Image Adjust.
Displays the Main Menu
or exits the control
screen and saves
adjustments.
Power light 
Blue = ON 
Orange = Power Saving
Standby Power 
On/Off
Scrolls through menu options 
and adjusts the displayed 
control.
Also a shortcut to display the 
Contrast adjustment control 
screen.
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Do the following to adjust the display setting:
1. To display the Main Menu, press button [1]. 
NOTE: All OSD menus and adjustment screens disappear automatically after about 15  
seconds. This is adjustable through the OSD timeout setting in the setup menu.
2. To select a control to adjust, pressS orT to scroll up or down in the Main Menu. 
3. After the desired control is selected, press button [2]. A control screen like the one shown  
below appears.
The line at the bottom of the screen shows 
the current functions of buttons 1 and 2: 
Exit or select the Brightness control.
4. To adjust the control, press the up S or down  T buttons.   
5. To save the adjustments and exit the menu, press button [1] twice.  
The following tips may help you optimize your display:
• Adjust the computer's graphics card so that it outputs a 1680 x 1050 @ 60Hz video signal to 
the LCD display. (Look for instructions on “changing the refresh rate” in the graphics card's 
user guide.)
• If necessary, make small adjustments using H. POSITION and V. POSITION until the 
screen image is completely visible. (The black border around the edge of the screen should 
barely touch the illuminated “active area” of the LCD display.)
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Main Menu Controls
Adjust the menu items shown below by using the up S  and down T buttons. 
Control  Explanation
Auto Image Adjust  automatically sizes, centers, and fine tunes the video signal 
to eliminate waviness and distortion. Press the [2] button to obtain a sharper 
image.
NOTE:  Auto Image Adjust works with most common video cards. If this 
function does not work on your LCD display, then lower the video refresh rate 
to 60 Hz and set the resolution to its pre-set value.
Contrast  adjusts the difference between the image background (black level)   
and the foreground (white level).
Brightness adjusts background black level of the screen image. 
Input Select toggles between inputs if you have more than one computer  
connected to the LCD Display.
Audio Adjust 
Vol ume  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).
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Control  Explanation
sRGB- This is quickly becoming the industry standard for color management,
with support being included in many of the latest applications. Enabling this 
setting allows the LCD display to more accurately display colors the way they 
were originally intended. Enabling the sRGB setting will cause the Contrast and 
Brightness adjustments to be disabled.
9300K- Adds blue to the screen image for cooler white (used in most office
settings with fluorescent lighting).
7500K -  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. 
5000K-Adds 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, pressS andT .  
Important: If you select RECALL from the Main Menu when the product is  
set to a Preset Timing Mode, colors return to the 6500K factory preset.
Information  displays the timing mode (video signal input) coming from the 
graphics card in the computer, the LCD model number, the serial number, and 
the ViewSonic® website URL. See your graphics card’s user guide for 
instructions on changing the resolution and refresh rate (vertical frequency). 
NOTE:  VESA 1680 x 1050 @ 60Hz (recommended) means that the resolution 
is 1680 x 1050 and the refresh rate is 60 Hertz.
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Control  Explanation
Manual Image Adjust displays the Manual Image Adjust menu. 
H./V. Position (Horizontal/Vertical Position) moves the screen image left or  
right and up or down.
H. Size (Horizontal Size) adjusts the width of the screen image. 
Fine Tune sharpens the focus by aligning te xt and/or graphics with pixel  
boundaries.
NOTE: Try Auto Image Adjust first. 
Sharpness adjusts the clarity and focus of the screen image. 
Dynamic Contrast allows the user to turn the contrast ratio enhancement on or  
off.
Aspect ratio Selects the image size for 4:3, fill aspect ratio & full screen. 
Response Time adjusts the response time of liquid-crystal display for image  
quality enhancement.
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Control  Explanation
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 advises the optimal resolution to use. 
OSD Position allows the user to move th e OSD menus and control screens. 
OSD Timeout sets the length of time the OSD screen is displayed. For  
example, with a “15 second” setting, if a control is not pushed within 15 
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. 
Exception:  This control does not affect changes made with the User Color 
control, Language Select or Power Lock setting.
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4. Circuit Description  
The NT68670 is a highly integrated flat panel display controller that interfaces analog, digital, 
and video inputs. It combines a triple ADC, a DVI compliant TMDS receiver, a digital YUV 
receiver, a high quality zoom and shrink engine , a multi-color on screen display (OSD) 
controller , an advanced color engine ,an liquid crystal display accelerator over – driving that 
embedded 1Mx16 SDRAM and many other functions in a single chip. It provides the user with a 
simple, flexible and cost-effective solution for various flat panel display products. 
The NT68670 operates at frequencies up to 170MHz, suitable for LCD monitor up to UXGA 
resolution. The NT68670 also has a built-in noise reduction function to provide more stable 
video quality, spread spectrum to provide low EMI solution, sRGB for video color space convert 
and post pattern for manufacture test. 
The display provided multi-interface with timing controller or without timing controller. With 
timing controller provided single/double pixel clock RSDS interface; without timing controller 
provide single/double pixel clock LVDS interface. 
In addition, NT68670 includes an integrated 8-Bit Microcontroller (MCU). It contains an 8-bit 
8031 micro-controller, 1,280-bytes internal data memory, four 7-bit resolution A/D Converter, 
10-channel 8-bit resolution PWM DAC, two16-bit timer/counters, and a UART. Except those, it 
has two-channel hardware DDC solution, and VESA 2Bi/2B+ master/slave I2C bus interface. 
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5. Adjustment Procedure  
Function Test and Alignment Procedure 
1. All Modes Reset 
You should do “All Model Reset” (Refer to Chap 3. Hot Keys for Function Controls) 
first. This action will allow you to erase all end-user’s settings and restore the 
factory defaults. 
2. Auto Image Adjust  
The Auto Adjust is aimed to offer a best screen quality by built-in ASIC. For 
optimum screen quality, the user has to adjust each function manually. 
A.Turn the computer and LCD monitor on. 
B. Press the ‘Auto ’ 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 
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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 
10. Black Box 
Test Signal: 1280*1024@60Hz
Test Pattern: 
Window standard pattern 
Inspection Item: Bright Dot, Line Defect & Power 
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11. RED 
Test Signal: 1280*1024@60Hz 
Test Pattern: 
Full Screen Red 
Inspection Item: Bright Dot, Partial & Line Defect 
12. Green 
Test Signal: 1280*1024@60Hz 
Test Pattern: 
Full Screen Green 
Inspection Item: Bright Dot, Partial & Line Defect 
13. Blue 
Test Signal: 1280*1024@60Hz 
Test Pattern: 
Full Screen Green 
Inspection Item: Bright Dot, Partial & Line Defect 
14. Gray_Scale_0-100_V64 
Test Signal: 1280*1024@60Hz
Test Pattern: 
Vertical 64 (256) Gray Scale (Right →  Left, From 0 to 100% White) 
Inspection Item: Line Defect & Function Defect  
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Function Test Display pattern 
Item Pattern   Description   Remark
1 Gray_Scale_0-100_V 
2 Gray_Scale_0-100_H 
3   Black   Full Screen Black   Figure 3
4   Red   Full Screen 50% Red   Figure 4
5   Green   Full Screen 50% Green   Figure 5
6   Blue   Full Screen 50% Blue   Figure6
7 White   Full   Figure7
8   Black_Tile   Black Tile Under White Background   Figure 8
Vertical 64 (256) Gray Scale (右→ 左, From 0 to 100% White) 
Horizontal 64 (256) Gray Scale (上→ 下, From 0 to 100% White) 
Figure 1
Figure 2
Figure 1   Figure 2 
Figure 3   Figure 4 
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Figure 5   Figure 6 
Figure 7   Figure 8 
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BIOS update procedure 
Writer Ver 3.0  
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Setp1: 
Setup EasyUSB WriterV3.0.exe 
Setp2:  
Enter :   
 39  
ViewSonic Corporation 
   VX1962wmp-1 
Confidential - Do Not Copy    VX1962wm-1  
Page 43
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ViewSonic Corporation 
   VX1962wmp-1 
Confidential - Do Not Copy    VX1962wm-1  
Page 44
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ViewSonic Corporation 
   VX1962wmp-1 
Confidential - Do Not Copy    VX1962wm-1  
Page 45
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ViewSonic Corporation 
   VX1962wmp-1 
Confidential - Do Not Copy    VX1962wm-1  
Page 46
Step 3 : 
Find Writer in this program.
¨  
Step 4 : 
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ViewSonic Corporation 
   VX1962wmp-1 
Confidential - Do Not Copy    VX1962wm-1  
Page 47
OptionÆ Configuration Æ CHIMEI Æ Confirm  
change
Step 5 :  Print to D-Sub and DVI-D  
Link Monitor which is update 
Link PC 
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ViewSonic Corporation 
   VX1962wmp-1 
Confidential - Do Not Copy    VX1962wm-1  
Page 48
Step 6 : BIOS update: Load  
FileÆ AutoÆ Finish   
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Confidential - Do Not Copy    VX1962wm-1  
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Packing For Shipping 
1.1 Paste protection film to protect the Panel. (Figure 1) 
1.2 Put the monitor into the PE Bag. (Figure 2) 
Figure 1   Figure 2 
1.3 Put on cushion. (Figure 3) 
1.4 Place all the accessories into the carton. At last close the carton and seal it with tape. 
(Figure 4) 
Figure 3   Figure 4 
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Confidential - Do Not Copy    VX1962wm-1  
Page 50
Monitor Assembly and Disassembly 
Separate Stand Assy 
Press hook and remove Seat Assy. 
Remove both sides Cover Hinge of the Monitor. 
Loose and remove 6 Screws of Stand Assy. 
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Remove Stand Assy. 
Separate Rear Cover  
Remove Screw of Rear Cover. 
Separate Rear Cover. 
Remove Rear Cover. 
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Remove PCBA Cover  
Loose and remove 4 hexagonal Screws of D-sub & 
DVI Jack. 
Loose and remove 2 Screws of Power Jack. 
Loose and remove 4 Screws of PCBA Cover. 
Remove PCBA Cover. 
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Confidential - Do Not Copy    VX1962wm-1  
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Remove OSD Board 
Pull out FFC-OSD to AD Board. 
Take out OSD Board directly. 
Change New OSD Board 
Place a new OSD Board. 
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Insert FFC-OSD to AD Board. 
Remove Lips and AD Board   
Pull out FFC-X/B to AD/B. 
Pull out FFC-OSD to AD/B. 
Pull out 3 pieces of LED BL Wires. 
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Confidential - Do Not Copy    VX1962wm-1  
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Loose and remove 4 Screws of AD Board. 
Loose and remove 4 Screws of Lips. 
Remove Lips and AD Board. 
Separate Lips and AD Board. 
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Confidential - Do Not Copy    VX1962wm-1  
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Change New Lips and AD Board. 
Join Lips and AD Board. 
Place Lips and AD Board on the Panel. 
Fasten 4 Screws of AD Board. 
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Confidential - Do Not Copy    VX1962wm-1  
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Fasten 4 Screws of Lips. 
Insert 3 pieces of LED BL Wires. 
Insert FFC-X/B to AD/B. 
Insert FFC-OSD to AD Board. 
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Confidential - Do Not Copy    VX1962wm-1  
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PCBA Cover Assembly 
Place PCBA Cover on the Panel. 
Fasten 4 Screws of PCBA Cover. 
Fasten 2 Screws of Power Jack. 
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Confidential - Do Not Copy    VX1962wm-1  
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Fasten 4 hexagonal Screws of D-sub & DVI Jack. 
Rear Cover Assembly 
Join Rear Cover. 
Fasten Screw of Rear Cover. 
Stand Assy Assembly 
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ViewSonic Corporation 
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Place Stand Assy. 
Fasten 6 Screws of Stand Assy. 
Join Cover Hinges. 
Fabricate Seat Assy. 
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ViewSonic Corporation 
   VX1962wmp-1 
Confidential - Do Not Copy    VX1962wm-1  
Page 61
6. Troubleshooting Flow Chart  
Defect Mode   Failure Analysis   Repair   Testing 
Light On Test 
※  “ Panel Change” Should be Performed to Level 3  Repair stage  
Abnormal 
Display 
Flash Dots
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 Ste
NG 
TEST 
A 
Completed 
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Defect Mode   Failure Analysis   Repair   Testing 
※  “ Panel Change” Should be Performed to Level 3  Repair stage  
A 
Display Noise 
Power on  
Check PCBA
AD/B Change 
Display  
Abnormal 
Power/B Change 
Inverter/B Change 
Flicker 
CNT/B Change 
Beat Display 
Flicker 
Beat Display 
Shut Down 
Check Panel
Panel Change 
Display Wave 
Check PCBA
AD/B Change 
Power/B Change 
CNT/B Change 
Check Panel
Panel Change 
No Backlight 
Check Adapter 
Adapter Change 
Next Ste
NG 
TEST 
B 
Completed 
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Confidential - Do Not Copy    VX1962wm-1  
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Defect Mode   Failure Analysis   Repair   Testing 
※  “  Panel Change” Should be Performed to  Level 3  Repair stage  
B 
Display White 
Ou
Check PCBA
AD/B Change 
Power/B Change 
Booting Delay 
Brightness 
Even 
Abnormal 
Check PCBA
Check PCBA
Inverter/B Change 
OSD/B Change 
Power/B Change 
Beat Display 
No Backlight 
Check Panel
Inverter/B Change 
Panel Change 
Check Adapter 
Adapter Change 
No signal 
AD/B Change 
R.G.B  
Display 
Abnormal 
Check PCBA
CNT/B Change 
Gray Scale  
Display  
A
normal 
Check Wire 
Check Panel
VGA cable Change 
DVI cable Change 
Panel Change 
Next Ste
NG 
TEST 
C 
Completed 
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Confidential - Do Not Copy    VX1962wm-1  
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Defect Mode   Failure Analysis   Repair   Testing 
※  “  Panel Change” Should be Performed to  Level 3  Repair stage  
C 
Horizontal 
Line Defect 
Vertical 
Weak Line 
Horizontal 
Weak Line  
Check PCBA
AD/B Change 
Vertical 
Band Defect 
Check Panel 
Panel Change 
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 
Next Ste
NG 
TEST 
Completed
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Confidential - Do Not Copy    VX1962wm-1  
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Defect Mode   Failure Analysis   Repair   Testing 
※  “  Panel Change” Should be Performed to  Level 3  Repair stage  
AD/B Change 
Power/B Change 
Power ON/OFF 
Abnormal 
No Powe
Turn Off 
Abnormal 
Check PCBA 
Check PCBA 
CNT/B Change 
Inverter/B Change 
OSD/B Change 
Check Wire 
Check Wire 
Check Adapter 
OSD Cable 
AC Power Change 
DC Power CNT 
 Cable Chan
Adapter Change 
e 
LED Display 
Abnormal 
LED Off 
LED Dark 
Check PCBA 
AD/B Change 
Power/B Change 
Inverter/B Change 
OSD/B Change 
LED Abnormal
LED Loss 
LED Flicke
Check Wire 
OSD Cable Change 
DC Power CNT 
 Cable Chan
Adapter Change 
e
NG 
Next Ste
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ViewSonic Corporation 
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Confidential - Do Not Copy    VX1962wm-1  
TEST 
Completed 
Page 66
Defect Mode   Failure Analysis   Repair   Testing 
Abnormal BIOS 
&OSD 
※  “  Panel Change” Should be Performed to  Level 3  Repair stage  
OSD Key  
Unavailable 
OSD Can’t 
Input 
OSD Can’t 
Read 
Check PCB 
AD/B Change 
CNT/B Change 
Power/B Change 
Inverter/B Change 
OSD/B Change 
OSD No 
Display 
OSD Jiggle 
Check Wire 
D-sub cable Change
OSD cable Change 
VGA cable Change 
OSD Display 
Abnormal 
Check BIOS 
DVI cable Change 
BIOS Update 
Abnormal 
Louds
eaker 
Voice Loss 
Abnormal 
Loud 
L/R  
Abnormal 
AD/B Change 
CNT/B Change 
Power/B Change 
Check PCBA 
Inverter/B Change 
OSD/B Change 
Check Wire 
No Voice 
L/R Same 
Vo l u m e 
Check Loudspeaker 
OSD Cable Change 
Loudspeaker 
 Change 
Loudspeaker 
Noise 
Next Ste
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ViewSonic Corporation 
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Confidential - Do Not Copy    VX1962wm-1  
NG 
TEST 
Completed 
Page 67
Defect Mode   Failure Analysis   Repair   Testing 
Other Abnormal 
Display 
※  “  Panel Change” Should be Performed to  Level 3  Repair stage  
Display Shut  
Down 
Check PCBA
AD/B Change 
Power/B Change 
CNT/B Change 
Check PCB
Panel Change 
Display Flicker 
((tapping ) 
Check PCBA 
AD/B Change 
CNT/B Change 
Check Panel 
Panel Change 
DVI Signal 
Display 
Check PCB
AD/B Change 
Abnormal 
EDID Update 
TV Function 
Display 
Abnormal 
Check PCBA 
Check Wire 
Check Controller 
TV /B Change 
AV Cable Change 
Remote controller 
Change 
Next Ste
NG 
TEST 
Completed
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ViewSonic Corporation 
   VX1962wmp-1 
Confidential - Do Not Copy    VX1962wm-1  
Page 68
Trouble Shooting Analysis 
Check the information in this section to see if the problems can be solved before requesting 
repair. 
Note: The consumers are only allowed to solve the problems described as below. Any 
unauthorized product modification, or failure to follow instructions supplied with the 
product will end the warranty immediately. 
7 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. 
7 No Signal Input  
   Check the signal connection between the computer and LCD monitor. 
7  “Out of Range”  
   Check the computer image output resolution and frequency and compare the value 
with the preset values (Please refer to [Appendix-Display Mode]). 
7 Fuzzy Image  
 Adjust  
7 Image too bright  
   Adjust brightness and contrast by OSD. 
7 Image too dark  
   Adjust brightness and contrast by OSD. 
7 Irregular image  
   Check the signal connection between the computer and LCD monitor. 
   Perform Auto Adjust. 
7 Distorted image  
   Reset the LCD monitor 
   Take off extra accessories (such as signal extension cord). 
7 Image is not centered  
   Use OSD Image Menu to adjust H_Position and V_Position. 
   Check image size setting. 
   Perform Auto Adjust. 
7 Size is not appropriate  
   Use OSD Image Menu to adjust H_Position and V_Position. 
   Check image size setting. 
   Perform Auto Adjust. 
7 Uneven color  
   Use OSD Color Menu to adjust color setting. 
7 Color too dark  
   Use OSD Color Menu to adjust color setting. 
7 Dark area distorted  
   Use OSD Color Menu to adjust color setting. 
7 White color is not white  
   Use OSD Color Menu to adjust color setting. 
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ViewSonic Corporation 
   VX1962wmp-1 
Confidential - Do Not Copy    VX1962wm-1  
Page 69
7. Block Diagram  
DVI
24C02
VGA
24C02
Out
LVDS
NT68670
MCU + Scaler
VGA  DVI
24C04
for HDCP
24C16
System
Power
Inveter
Audio
APA2068
KBoard
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ViewSonic Corporation 
   VX1962wmp-1 
Confidential - Do Not Copy    VX1962wm-1  
Page 70
8. Schematic Diagrams  
+5V
B1
+5V
02_VGA
SOGI
VGA_SDA
VGA_SCL
BI1
VGA_SDA
SOGI
VGA_SCL
B3
SOGI
VGA_SCL
VGA_SDA
BI1
BI1
GI1
GI1
RI1
GI1
RI1
RI1
BI1-
BI1-
GI1-
BI1-
ADC_VAA
RI1-
GI1-
HSIN
RI1-
VSIN
HSIN
RI1-
GI1-
HSIN
VSIN
VSIN
B4
ADC_VAA
ADC_VAA
04_INTERFACE
ADC_VAA
INV_ADJ
INV_ON/OFF
DVDD
VGA_3V3
V33S
INV_ADJ
INV_ON/OFF
DVDD
VGA_3V3
V33S
V33S
DVDD
INV_ADJ
VGA_3V3
INV_ON/OFF
PWR_SW
LED_ORG
LED_GRN
PWR_SW
LED_ORG
LED_GRN
PWR_SW
LED_GRN
LED_ORG
MENU
MENU
KEY_UP
MENU
KEY_UP
KEY_UP
KEY_DOWN
B_D[0..19]
KEY_DOWN
AUTO_ADJ
SOURCE_SELECT
B_D[0..19]
AUTO_ADJ
SOURCE_SELECT
B_D[0..19]
AUTO_ADJ
KEY_DOWN
SOURCE_SELECT
+5V
FSTHI
F_D[0..19]
BSTHI
F_D[0..19]
FSTHI
BSTHI
FSTHI
BSTHI
F_D[0..19]
STB
STB
POL
STB
POL
POL
STV
CKVOESTV
STV
CKV
OE
VCM_PWM
OE
CKV
LIPS_5V
SPK_R+
SPK_RSPK_L+
SPK_L-
PANEL_ON
VCM_PWM
GVON
GVON
PANEL_ON
GVON
VCM_PWM
PANEL_ON
MCU_VDD
CVDD1V8
MCU_VDD
CVDD1V8
CVDD1V8
MCU_VDD
LIPS_5V
SPK_R+ 
SPK_RSPK_L+ 
SPK_L-
B5
LIPS_5V
SPK_R+ 
SPK_RSPK_L+ 
SPK_L-
05_AUDIO
MUTE
AMP_SHDN
VOL_PWM
MUTE
AMP_SHDN
VOL_PWM
MUTE
VOL_PWM
AMP_SHDN
B6
+5V
ADC_VAA
RX2-
RX2-
RX2-
RX2+
RX2+
RX1-
RX2+
RX1-
RX1+
RX1-
RX1+
RX0-
RX0-
RX0-
RX1+
RX0+
RX0+
RXC-
RX0+
RXC-
RXC+
RXC+
RXC-
RXC+
03_SCALER
DVI_SCL
DVI_SDA
DVI_SCL
DVI_SDA
DVI_SCL
DVI_SDA
06_DVI
DVI_HPD
DVI_HPD
CVDD1V8
DVI_HPD
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ViewSonic Corporation   Confidential - Do Not Copy    VX1962wm-1  
   VX1962wmp-1 
Page 71
1 
2 
3
GND_POWER
U1U1
NC
VCC
NC
WP
NC
SCL
GND4SDA
VGA_SDA
VGA_SCL
Novatek  DSUB Conne ctor,
৬ᤜ࣋ڇᔾ  ቃ್܌ػۥڮᐙ
100M/33ohm
R3R3
R8R8
B1B1
1  2
B2B2
1  2
R1  R  R
R4  R  R
R5  R  R
R6  R  R
R9R9
C1C1
C2C2
C5C5
C6C6
RI1-
GI1
RI1
RI1  3
RI1-  3
CA1CA1
GI1  3
GI1-  3
SOGI
R7R7
GND_POWER
SOGI  3
OPTION Remark
CREA[3:2] 
01 ,  470n
ሽሽሽሽףףףףՂՂՂՂ
CREA[3:2] 
11 ,  47n,
ሽሽሽሽףףףףՂՂՂՂ
ࡳࡳࡳࡳ
ሽሽሽሽ୲୲୲୲
1M
ࡳࡳࡳࡳ
ሽሽሽሽ୲୲୲୲
5M
+5V
1
2
D1D1
3
8
VGA_5V
7 
6 
5
11
12
HSI
13
VSI
14
15
R2R2
CN1CN1
VGA_VDD
+5V  4,5
C3C3
GND_POWER
1 
6 
2 
7 
3 
8 
4 
9 
5 
10
RAI+
GAI+
BAI+
VGA_SCL
VGA_SDA
RAI-
GAI-
BAI-
1
1
VGA_SCL 
VGA_SDA
VSCL
TP
VSDA
TP
GND_POWER
RAI+
GAI+
1
GND_POWER
1
3
D2D2
RAI-
C4C4
3
D3D3
GAI-  GI1-
C7C7
GND_POWER
VGA_5V
Z1Z1
1  2
GND_POWER
GND_POWER
3
1
GND_POWER
VSI
Z3Z3
R14R14
1  2
GND_POWER
VGA_VDD
R15R15
GND_POWER  GND_POWER
D4D4
C10C10
Z2Z2
1  2
GND_POWER  GND_POWER
C12C12
C11C11
R11R11
R13R13
B3B3
1  2
ADC_VAA
VGA_VDD
R10R10
R12R12
ADC_VAA 3,4,5
HSI
Z4Z4
1  2
GND_POWER  GND_POWER
R17R17
R16R16
C13C13
C8C8
C9C9
HSIN  3  3
BI1
BI1  3
BI1-
BI1-  3
R18R18
VGA_SDA
Z5Z5
1  2
GND_POWER  GND_POWER
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ViewSonic Corporation 
Confidential - Do Not Copy    VX1962wm-1  
   VX1962wmp-1 
R19R19
VGA_SDA 3
Z6Z6
1  2
Page 72
DVDD
90
53
C18C18
C24C24
CVDD1V8
115
C22C22
GND_POWER
GND_POW ER
CVDD1V8
115
52
GND_POWER
C19C19
C21C21
CVDD1V8
DVDD
R93R93
Pin51 to DVDD For NT68670 w/ 100nF
Pin51 to Pin33 For non-OD w/o 100nF
C61C61
GND_POW ER
MCU_VDD
R31R31
R30R30
TX
RX
SCL
SDA
TX1TX1
1
TP
RX1RX1
1
TP
SCL1
1
TP
SDA1
1
TP
For Debug Use
TX,RX  MCU  (ASCII)
ط  ൷گ  هڃࠐಛஒ
SCL,SDA  Scaler register
طᦰ  ଖ
ISP from VGA_SCL,VGA_SDA
IRQn  MCU  Scaler
אঁ  ࿇խឰ
RSTn  Reset
ྒྷᇢរאঁၦྒྷ  ಛᇆ
,Reset  Reset MCU &
༺Եሽᄭঁᄎ
Scaler
IRQn
C14C14
RSTN1
R33R33
R34R34
Y1
VGA_3V3
CVDD1V8
B14B14
via
U2U2
16
REXT
4
RX2+
5
RX2-
7
RX1+
8
RX1-
10
RX0+
11
RX0-
13
RXC+
14
RXC-
41
HSYNC I1
42
TOUTP/VSYNCI1
19
BIN1+
20
BIN1-
21
SOG1I
22
GIN1+
23
GIN1-
24
RIN1+
25
RIN1-
2
MCU_VCC
3
MCU_GND
34
PB7/DDC_SDA1
35
PB6/DDC_SCL1
46
PB5/DVI_SDA0
47
PB4/DVI_SCL0
30
PB3/ADC3/INTE1
33
PB2/ADC2/INTE0
125
PB1/ADC1
126
PB0/ADC0
48
RSTn/PD5
49
SDA/P35
50
SCL/P34
51
IRQ n
44
TCLK
128
OSCO
127
OSCI
31
P31/TXD
32
P30/RXD
1
RSTB
PWR_SW
MENU
KEY_UP
KEY_DOWN
AUDIO_FUNCTION
ADC_VA A
CVDD1V8  DVDD
1
GND_POW ER
+
C62+C62
C20C20
DPLL
52
45
PLL_VDD
115
43
26
CVDD
CVDD
PLL_GND
NT68625 for 19W DUSB only 
NT68665 for 19W Dual 
NT68665H for 22 wide Dual 
NT68670TFG for 19 wide OD 
NT68670HTFG for 22 wide OD
* => open drain(High Pulse)
** => initial low(initial low)
PD6
PD4
PD3
PD2
PD1
PD0
29
108
107
106
105
104
GND_POWER
Option for NT68670
VGA_3V3
B4B4
DVDD 2, 4,5
1  2
PVCC
53
90
6
15
17
AVCC
AVCC
PVCC
27
DVDD
DVDD
ADC_VAA
ADC_GNDA
GND_POW ER
64
101
78
9
12
18
DGND/CGND
DGND/CGND
DGND/CGND
RSRB1M/TTL_POL
RSRB3M/DHS 
RSRB3P/DVS 
RSRB2M/DDE
RSRB2P/DCLK
AGND
AGND
PGND
RSGB3M/R7
RSGB2M/R5
RSGB1M/T0M/R3
RSGB1P/T0P/R2
RSBB3M/T2M/G7
RSBB3P/T2P/G6
RSBB2M/TCL K1M/G5
RSBB2P/TC LK1P/G4
RSBB1M/T3M/G3
RSBB1P/T3P/G2
RSCLKBM/T1M/R1
RSCLKBP/T1P/R0
RSRA3M/T4M/G1/RSRB0M
RSRA3P/T4P/G0/RSRB0P
RSRA2M/T5M/B7/GSGB0M
RSRA2P/T5P/B6/RSGB0P
RSRA1M/T6M/B5/RSGB0M
RSRA1P/T6P/B4/RSBB0P
RSGA3M/T CLK2M/B3
RSGA3P/TCLK2P/B2
RSGA2M/T7M/B1
RSGA2P/T7P/B0
RSGA1P/VCKI
RSCLKAM/V7
RSCLKAP/V6
INT_VSO/GPO4 
INT_HSO/GPO5
*PWMA/GPO7 
*PWMB/GPO8
PA3/PWM536PA4/PWM6*37PA5/PWM7*38PA6/PWM8*39PA7/PWM9*
NC(HSYNCI/GND)
119
109
CVDD1V8
NC(VSNCI/CVDD)
R91R91
PA1/PWM367PA2/PWM466PA0/PWM2
65
R92R92
40
LED_ORG
VCM_PWM
LED_GRN
C26C26
GND_POWER
GND_POWER
VGA_3V3 2,4,5
DPLL  IC ,
ሽ୲ጐၦ൷ ጤ
ࢮᒵᏁ٣ᆖሽ୲ڇؚ  ࠩچ
R20R20
MCU_VDD
GND_POWER
R22R22 
R24R24 
R25R25 
R26R26
R28R28
REFCLK I
MCU_VDD
R35R35
C65C65
C28C28
Option for NT68670
RX2+ 
RX2RX1+ 
RX1RX0+ 
RX0RXC+ 
RXC-
HSIN 
VSIN
BI1 
BI1-
SOGI 
GI1 
GI1-
RI1 
RI1-
C23C23
TX 
RX
15  26
6
C15C15
GND_POW ER
VGA_3V3
RX2+
HSIN
BI1
SOGI
RI1
VGA_SDA
AUTO_ADJ 
SOURCE_S ELE CT
RSTn
1
TP
SDA 
SCL
REFCLKI for NT68625/65
12 M HzY112 M Hz
C27C27
GND_POWER
17
C16C16
RSRB1P
RSGB3P/R6
RSGB2P/R4
RSGA1M
RSBA3M/V5 
RSBA3P/V4 
RSBA2M/V3 
RSBA2P/V2 
RSBA1M/V1 
RSBA1P/V0
GPO1 
GPO2/AD0 
GPO3/AD1
GPO6
**PC0
**PC1
PC2 
PC3/PWM0 
PC4/PWM1
PC5
PC6
PC7
24C04_SDA 
24C04_SCL 
24C04_WP
PVCC
SP
GND_POW ER
100 
99 
98 
97 
96 
95 
94 
93 
92 
91 
88 
87 
84 
83 
82 
81 
80 
79
86 
85
77 
76 
75 
74 
73 
72 
71 
70 
69 
68 
63 
62
61 
60 
59 
58 
57 
56 
55 
54
89 
110 
111 
112 
113 
114 
116 
117 
118
120 
121 
28 
122 
123 
124 
102 
103
DVI_HPD 5
LED_ORG 4
VCM_PWM 4
LED_GRN 4
ADC_VAA
B_D17 
B_D16 
B_D15 
B_D14 
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
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_D19 
F_D18 
F_D5 
F_D4 
F_D3 
F_D2 
F_D1 
F_D0
C17C17
B_D[0.. 19]
F_D[0.. 19]
R29R29
ADC_VAA 2,4,5
C63C63
B_D[0.. 19] 4
F_D[0.. 19] 4
GND_POWER
R27R27
FSTHI
V33S
V33S
R36R36
R90R90
R38R38
R96R96
MUTE
VOL_ADJ
HSO
WP
C66C66
GND_POWER
ط࣍  ᄎᎄܒ  ಛᇆ
Scaler sync processor  SOG  ,
Scaler HSO MCU  count
ط  ࢮ  ۟  אຌ᧯ࠐ  ಛᇆ
R37R37
BSTHI
STV
GVON
HSO 
CKV 
STB
GND_POWER
R40R40
GND_POW ER
BSTHI  4 
FSTHI  4 
OE  4 
POL  4 
STV  4 
GVON  4
CKV  4 
STB  4
INV_ON/ OFF 4
PANEL_ON 4 
MUTE  6
U3
U3
1
A0
2
A1
3
A2
4
GND
V33S
V33S
R39R39
R41R41
GND_POWER
R32R32
MCU_VDD
8
VCC
7
TEST
6
SCL
5
SEEPROM
SEEPROM
SDA
GND_POWER
INV_ADJ 4
Pin123 High-->Dual 
Pin123 Low-->Analog only
MCU_VDD 2,4,5
R23R23
R21R21
WPWPWPWPWPWPWPWPWPWPWPWPWPWPWPWPWPWPWPWP
SCL
SDASDA
C25C25
MCU_VDD
R42R42
R43R43
SOURCE_SELECT
AUTO_ADJ
SOURCE_SELECT 
AUTO_ADJ 
KEY_DOWN 
KEY_UP 
MENU 
PWR_SW
R46R46
R44R44
R47R47
R45R45
High w/o Audio 
Low with Audio
AUDIO_FUNCTION
GND_POWER
V33S
R52R52
VOL_ADJ
R55R55
V33S
V33S 2,4,5
R48R48
R49R49
GND_POW ER
VOL_PWM 6
C29C29
 69  
ViewSonic Corporation 
Confidential - Do Not Copy    VX1962wm-1  
   VX1962wmp-1 
GND_POW ER
MCU_VDD
HDCP 
OPTION
U4
U4
1
A0
2
A1
3
A2
4
GND
VCC
TEST
SCL
SEEPROM
SEEPROM
SDA
8
7
6
5
GND_POWER
R50R50
C30C30
R51R51
R53R53
24C04_WP
24C04_SCL
24C04_SDA
24C04_WP
24C04_SCL
24C04_SDA
1
TP
1
TP
1
TP
MUTE
HWPHWP
HSCL
HSDA
R54R54
Q1Q1
1
GND_POWER
V33S
AMP_SHDN 6
3
Page 73
CN2
VGA_3V3
+5V
LIPS Interface
D5D5
1  2
8 
7 
6 
5 
4 
3 
2 
1
B8B8
B9B9
B10B10
1
1
1
INV_ADJ 3 
INV _ ON /O F F 3
LIPS_5V
B5B5
1  2
+5V
C31
GND_P OWER
+5V
C33
1
+5V1
TP
+5V  2,5
1  2
V33S
C57
B6B6
C58
3
C32
U5U5
VIN
GND
1
GND_P OWER
U8U8
3
VIN
VOUT 
VOUT
GND
1
VOUT 
VOUT
2 
4
C34
2 
4
C59
1  2
C64+C64
+
V18C1
TP
1
C60
V33S
B7B7
V33S  2,3,5
(SCALER VCC)
Scaler Core
B13B13
1
Option for NT68670
DVDD
VGA_3V3 2,3,5
DVDD 2,3,5
ADC_VAA
ADC_VAA 2,3,5
MCU_VD D
MCU_V DD 2,3,5
CVDD1V8
[INV_GND]
SOURCE_SELECT
GND_P OWER
GND
OSD Interface
R56R56
LED_O 
LED_G
R64R64
R66R66
R63R63 
R57R57 
R58R58 
R59R59 
R60R60 
R62R62 
R61R61 
L1L1 
L2L2 
L4L4 
L3L3
C35
C39
1
C40
GND_P OWER
C36
C37
C38
GND_P OWER
V33S
R65R65
2
Q2Q2
LED_O
V33S
AUTO_ADJ
KEY_DOWN
KEY_UP
MENU
PWR_SW
LED_ORG
CN4
15 
14 
13 
12 
11 
10 
9 
8 
7 
6 
5 
4 
3 
2 
1
+5V
R67R67
B_D[0..19]
F_D [0..19 ]
VCM_PWM
Q3Q3
3
1
R68R68
X Board Interface
BB2P
C41
BSTHI 
FSTHI 
POL 
STB 
STV 
CKV 
OE 
GVON 
VCM_PWM
BSTHI
V5P
CN3
55
55
54
54
53
53
52
52
51
51
50
50
49
49
48
48
47
47
46
46
45
45
44
44
43
43
42
42
41
41
40
40
39
39
38
38
37
37
36
36
35
35
34
34
33
33
32
32
31
31
30
30
29
29
28
28
27
27
26
26
25
25
24
24
23
23
22
22
21
21
20
20
19
19
18
18
17
17
16
16
15
15
14
14
13
13
12
12
11
11
10
10
9
9
8
8
7
7
6
6
5
5
4
4
3
3
2
2
1
1
R70R70
LED_GRN
R72R72
R71R71
2
Q5Q5
1
LED_G
PANEL_ON
 70  
ViewSonic Corporation 
Confidential - Do Not Copy    VX1962wm-1  
   VX1962wmp-1 
PANEL_ON
Q4Q4
3
1
GND_P OWER
R69R69
GND_P OWER
Page 74
DVI_S CL
DVI_S DA
R73R73
R75R75
1
DVI_V DD  CV DD1V8
DVI_S CL
DVI_S DA
DSCL
1
TP
DSDA
1
TP
DVI_V DD
R74R74
DVI_V DD
R76R76
For 686x5 series DVI Read EDID Fail
+5V
2
D6D6
+5V 2 ,4
CVDD1V 8
R95
R95
NC/0402/2.2K/5%
NC/0402/2.2K/5%
C42C42
R77R77
R79R79
DVI_S CL  DV I_S DA
Z7Z7
DVI_S CL  3  DV I_SDA  3
Z8Z8
VCLK
R
G
B
VCC
SCL
3
R78R78
8
DVI_5V
7 
6 
5
25 
26 
27 
29 
28 
8 
15 
6 
7 
14 
16
11 
3 
19 
22
18 
17 
10 
9 
2 
1 
13 
12 
5 
4 
21 
20 
23 
24
DVI_S CL 
DVI_S DA
DATA 0+ 
DATA 0DATA 1+ 
DATA 1DATA 2+ 
DATA 2-
CLK+ 
CLK-
R82R82
R80R80
R81R81
DVI_HP D 3
U6U6
1
NC
2
NC
3
NC 
GND4SDA
GND_POW ER  GND_POW ER
CN5
RGB GND
HSYNC
VSYNC
SYNC GND
DDC SCL
DDC SDA
+5V
HPD
1/3shield 
2/4shield 
0/5shield 
clk shield
DAT0+
DAT0-
DAT1+
DAT1-
DAT2+
DAT2-
DAT3+
DAT3-
DAT4+
DAT4-
DAT5+
DAT5-
clk+
clk-
DATA 0+
DATA 2+
1  2
GND_POW ER
RX0+  RX0-
D7D7
3
RX0+  3  RX0-  3
1
C43C43
RX1+  DATA 1-  RX1-
D9D9
3
RX1+  3  RX1-  3
1
C45C45
RX2+
D11D11
3
RX2+  3  RX2-  3
1
C47C47
1  2
GND_POW ER
D8D8
3
1
C44C44
D10D10
3
1
C46C46
RX2-
D12D12
3
1
C48C48
GND_POWE R
DVI_5V
CLK+  RXC-
D13D13
3
1
C49C49
Z9Z9
1  2
GND_POW ER
GND_POW ER
ADC_VAA
ADC_VAA 2,3,4
Z10Z10
GND_POW ER
 71  
ViewSonic Corporation 
Confidential - Do Not Copy    VX1962wm-1  
   VX1962wmp-1 
RXC+
CLK-
RXC-  3  3
D14D14
3
1
C50C50
Page 75
LIPS_5V
R83
LIPS_5V
5V_AMP
J1
1 
3 
11 
10 
2
GND
D15
GND_AUDIO
GND_AUDIO 
GND_AUDIO
C51+C51
+
GND
C52
GND
C53
U7
1
MUT E
C54
R84
RIN
1  2
R85
LIN
1
D16
RIN
RIN-
C56
LIN-
R86
LIN-
AMP_SHDN
C55
GND  GND
VOL_PWM
2
3
4
5
6
7
8
/SHDN
RIN-
BYPASS
GND
LIN-
VOL
VOLMAX
ROUT-
VDD
ROUT+
SE/BTL
GND
LOUT+
VDD
LOUT-
16
15
14
13
12
11
10
9
SPK_R-  4
5V_AMP
SPK_R+  4
GND
SPK_L+  4
5V_AMP
SPK_L-  4
GND
GND_AUDIO
LIN
R87
RIN-
5V_AMP
GND  GND_POWER
R88
R89
GND
 72  
ViewSonic Corporation 
Confidential - Do Not Copy    VX1962wm-1  
   VX1962wmp-1 
Page 76
9. PCB Layout Diagrams  
 73  
ViewSonic Corporation   Confidential - Do Not Copy    VX1962wm-1  
   VX1962wmp-1 
Page 77
10. Exploded Diagram and Exploded Parts List  
 74  
ViewSonic Corporation   Confidential - Do Not Copy    VX1962wm-1  
   VX1962wmp-1 
Page 78
EXPLODED PARTS LIST (VX1962WM-1)
ViewSonic Model Number: VS11979 
Rev: 1a
Serial No. Prefix: QUJ
Item
1 
2 
3 
4 
5 
6 
7 
8
9 
10 
11 
12 
13 
14
15 
16
17 
18 
19 
20 
21
ViewSonic P/N  Ref. P/N  Description  Q't
C-00008824 
B-00008877
N/A
CB-00008591
N/A 
HW-00008359 
HW-00000553
N/A  N/A
B-00008773 
B-00008878
HW-00006041
CB-00008592
N/A  N/A
N/A
N/A
C-00008825
N/A  N/A 
HW-00000557
PL-00008320
C-00008822 
C-00008823
40-D022655  BEZEL ASSY  1 
35-D022395  OSD PCB ASSY  1 
32-D016783  FUNCTION CABLE  1 
32-D019363  PCBX FFC  1 
73-D015762  ISOLATED TAPE  1 
42-D020715  SCREW M4x8L  1
42A9930008  SCREW M3x4L  4
MODULE M190Z1  1 
27-D021625  POWER PCB ASSY 
35-D020021  AD PCB ASSY
42A9940007  STAND OFF
32-D022683  OSD FFC
BLACK TAPE 
41-D019497  COVER AD 
73-D019104 
73-D019100 
40-D022652  REAR ASSY
42A9930017  SCREW D3x8L
40-D022657  STAND ASSY 
40-D022659  COVER HINGE 
40-D022653  SEAT ASSY
CONDUCTIVE TAPE
SCREW M4x10L
y
1 
1 
4 
1
N/A
1
2 
1
N/A
2 
1 
1 
1
EXPLODED PARTS LIST (VX1962WMP-1)
ViewSonic Model Number: VS11979 
Rev: 1a
Serial No. Prefix: QWA 
Item
1 
2 
3 
4 
5 
6 
7 
8
9 
10 
11 
12 
13 
14
15 
16
17 
18 
19 
20 
21
ViewSonic P/N  Ref. P/N  Description  Q't
C-00008827 
B-00008877
N/A
CB-00008591
N/A
N/A  N/A 
HW-00008359 
HW-00000553
B-00008773
N/A  N/A
B-00008878
HW-00006041
CB-00008592
N/A
N/A
N/A  N/A
C-00008825
HW-00000557
PL-00008321
C-00008822 
C-00008826
40-D022654  BEZEL ASSY  1 
35-D022395  OSD PCB ASSY  1 
32-D016783  FUNCTION CABLE  1 
32-D019363  PCBX FFC  1 
73-D015762  ISOLATED TAPE  1
MODULE M190Z1  1
42-D020715  SCREW M4x8L  1
42A9930008  SCREW M3x4L  4
27-D021625  POWER PCB ASSY
BLACK TAPE
35-D020021  AD PCB ASSY
42A9940007  STAND OFF
32-D022683  OSD FFC 
41-D019497  COVER AD 
73-D019104  CONDUCTIVE TAPE 
73-D019100  CONDUCTIVE TAPE
SCREW M4x10L
40-D022652  REAR ASSY
42A9930017  SCREW D3x8L
40-D022658  STAND ASSY 
40-D022659  COVER HINGE 
40-D022656  SEAT ASSY
y
1
N/A
1 
4 
1 
1 
2 
2
N/A
1 
2 
1 
1 
1
 75  
ViewSonic Corporation 
   VX1962wmp-1 
Confidential - Do Not Copy    VX1962wm-1  
Page 79
 76  
ViewSonic Corporation   Confidential - Do Not Copy    VX1962wm-1  
   VX1962wmp-1 
Page 80
ViewSonic Confidential  Creation Date: 
PACKING PART LIST ( VX1962WM-1 )
ViewSonic Model Number: VS11979 
Rev: 1a
Item  ViewSonic P/N  Ref. P/N  Description   Q't
/A 
2  PL-00006048 
3 
4  P-00008789 
5  P-00008911 
6  P-00008912 
7  P-00008913 
8  C-00008823
9
10  CB-00004287 
11  CB-00002083 
12  CB-00000547 
13  DC-00008800 
14 
15  DC-00008800
/A
A-00008170 
A-00008274
/A
A190Z1-H06 LCD Monito
73-D005900 Protect Fil
7345911004  Ta 
78-D018384 PE Foam Ba 
78-D022682 PE Foam 
78-D022684 PE Foam 
78-D022643 Carton  1 
40-D022653 Sea 
32E1818056 Power Cord  1 
32-D022217 Power Cord  1 
32F3018003 Monitor Cable  1 
32F0000004 DVI Cord  1 
32F2818004 Audio Cable  1 
76-D022553 
78-D021251 
76-D022553
e1
Left
Menu(Quick Setup) 
Warranty Registration Card (china) 
Menu(CD-ROM)
1 
1
1 
1 
1
1
1 
1 
1
PACKING PART LIST ( VX1962WMP-1 )
ViewSonic Model Number: VS11979 
Rev: 1a
Item  ViewSonic P/N  Ref. P/N  Description   Q't
/A 
2  PL-00006048 
3 
4  P-00008789 
5  P-00008911 
6  P-00008912 
7  P-00008914 
8  C-00008826
9
10  CB-00004287 
11  CB-00002083 
12  CB-00000547 
13  DC-00008800 
14 
15  DC-00008800
/A
A-00008170 
A-00008274
/A
A190Z1-H06 LCD Monito
73-D005900 Protect Fil
7345911004  Ta 
78-D018384 PE Foam Ba 
78-D022682 PE Foam 
78-D022684 PE Foam 
78-D022644 Carton  1 
40-D022656 Sea 
32E1818056 Power Cord  1 
32-D022217 Power Cord  1 
32F3018003 Monitor Cable  1 
32F0000004 DVI Cord  1 
32F2818004 Audio Cable  1 
76-D022553 
78-D021251 
76-D022553
e1
Left
Menu(Quick Setup)  1 
Warranty Registration Card (china)  1 
Menu(CD-ROM)  1
1 
1
1 
1 
1
1
 77  
ViewSonic Corporation 
   VX1962wmp-1 
Confidential - Do Not Copy    VX1962wm-1  
Page 81
11. Recommended Spare Parts List  
RECOMMENDED SPARE PARTS LIST (VX1962WM)
ViewSonic Model Number: VS11979 
Rev: 1a
Serial No. Prefix: QUJ
Item  ECR/ECN ViewSonic P/N  Ref. P/N  Location  Universal number#
Accessories: 
1
[Adapter, Remote
2
PC Board
3
Assembly: [All 
4
PCBA]
5
Cabinets:
6
[Front Panel, All
7
Covers, Base
8
Assembly]
9
Cables: [All Cables] 
10 
11 
12 
13 
14
Documentation:
15 
16 
17
Hardware: [Screw, 
18
Bracket, Hinge,
19
Washer]
20 
21 
22
Miscellaneous:
23
Packing
24
Material:
25
Foam, Bags]
26 
27
Plastics:
28
[Pedestal, Plate,
29
 [Box, 
Cord/Cable ,Black,CEE,1800mm,Withbag,  A-00008274  32-D022217 
Cord/Cable - Australia,LS-60,L=1830+-50mm,18AWG,NO BAG  A-00008170  32E1818056 
PSU - Supply Board 1200V  B-00008773  27-D021625 
OSD Board A190A8-H,A190A8-H-K3,801-02,Rev.02  B-00008877  35-D022395 
Main Board,A220Z5-H,A190A8-H-S5,503-05,Rev.05  B-00008878  35-D020021 
Cover Hinge,A190Z1-H06, Original  C-00008822  40-D022659 
Seat Assy-CoverA190Z1-H06,SilverBlack,  C-00008823  40-D022653 
Bezel Assy,A190Z1-H06, Silver/Black  C-00008824  40-D022655 
RearAssy, Black,D-Sub+DVI+Audio  C-00008825  40-D022652 
DVI Cable, S/L, 1.8M, W/2F  CB-00002083  32F0000004 
FFC-Flat Cable, 55Pins, PcbaX-AD  CB-00008591  32-D019363 
FFC-Flat Cable, 15Pins  CB-00008592  32-D022683 
Audio Cable - A150X2,30AWG,180cm,Black,JCE  CB-00000547  32F2818004 
Accessory Cable, D-Sub  CB-00004287  32F3018003 
Safety Label, SyntheticLabel,55mmx13mm,  DC-00008798  77-D019393 
Safety Label, 120mmx50mm, Ver.2  DC-00008799  77-D023770 
CD-Rom, Complex,4C  DC-00008800  76-D022553 
Screw,M3*P0.5*4,5.5*2  HW-00000553  42A9930008 
Screw,f3*P1.27*8,f5.5*2,Steel  HW-00000557  42A9930017 
Screw - 4# 40*11.8  HW-00006041  42A9940007 
Screw- M4,P=0.7mm,L=8mm  HW-00008359  42-D020715 
Screw - M2, P=0.4mm,L=2.2mm, FlatHead  HW-00008309  4261910001 
Tape Security, OPP,L900xW50x0.045mm  M-00000560  7345511002 
Bag - 570mmx600mmx0.08mm  P-00008789  78-D018384 
EPS Foam Left, White, 174mmx125mmx450mm  P-00008911  78-D022682 
EPS Foam Right, White,174mmx125mmx450mm  P-00008912  78-D022684 
Carton, 465mmx135mmx510mm  P-00008913  78-D022643 
Pedestal, Silver/Black  PL-00008320  40-D022657 
Panel Cover (Panel Protector Film)  PL-00006048  73-D005900
Description
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.
 78  
ViewSonic Corporation 
Confidential - Do Not Copy    VX1962wm-1  
   VX1962wmp-1 
Page 82
RECOMMENDED SPARE PARTS LIST (VX1962WMP-1)
ViewSonic Model Number:VS11979 
Rev: 1a
Serial No. Prefix: QWA
Item  ECR/ECN ViewSonic P/N  Ref. P/N  Location  Universal number#
Accessories:
1
[Adapter, Remote
2
PC Board
3
Assembly: [All 
4
PCBA]
5
Cabinets:
6
[Front Panel, All
7
Covers, Base
8
Assembly]
9
Cables: [All Cables 
10 
11 
12 
13  Audio Cable - A150X2,30AWG,180cm,Black,JCE 
14  Accessory Cable, D-Sub
Documentation:
15
[Quick Start
16
Guide, CD Rom;
17
Hardware:
18  Screw,M3*P0.5*4,5.5*2
[Screw, Bracket,
19
Hinge, Washer]
20  Screw - 4# 40*11.8 
21 
22
Miscellaneous:
23
Packing Material:
24
[Box, Foam, Bags]
25 
26 
27
Plastics: [Pedestal, 
28
Plate, Rubber
29
Cord/Cable ,Black,CEE,1800mm,Withbag,  A-00008274  32-D022217 
Cord/Cable - Australia,LS-60,L=1830+-50mm,18AWG,NO BAG  A-00008170  32E1818056 
PSU - Supply Board 1200V  B-00008773  27-D021625 
OSD Board A190A8-H,A190A8-H-K3,801-02,Rev.02  B-00008877  35-D022395 
Main Board,A220Z5-H,A190A8-H-S5,503-05,Rev.05  B-00008878  35-D020021 
Cover for Hinge,A190Z1-H06,ABSPA-756S,Original  C-00008822  40-D022659 
Seat Assy-Cover,A190Z1-H06, Purple/Black  C-00008826  40-D022656 
Bezel Assy,A190Z1-H06,ASSY,Purple/Black  C-00008827  40-D022654 
Rear Assy,A190Z1-H06,Black,D-Sub+DVI+Audio  C-00008825  40-D022652 
DVI Cable, S/L, 1.8M, W/2F  CB-00002083  32F0000004 
FFC,15Pins,PcbAD-OSD_A190Z1-H06  CB-00008592  32-D022683 
FFC,55Pins,PcbaX-AD_A190Z1-H02  CB-00008591  32-D019363
Safety Label for,A190Z1(M190Z1-L01),SyntheticLabel,55mmx13mm  DC-00008798  77-D019393 
Safety Label ,120mmx50mm Ver.2  DC-00008801  77-D023771 
CD-Rom A190Z1-H06,Complex,4C  DC-00008800  76-D022553
Screw,f3*P1.27*8,f5.5*2,Steel  HW-00000557  42A9930017
Screw- M4,P=0.7mm,L=8mm  HW-00008359  42-D020715 
Screw - M2, P=0.4mm,L=2.2mm, FlatHead  HW-00008309  4261910001 
Tape Security, OPP,L900xW50x0.045mm  M-00000560  7345511002 
Bag - 570mmx600mmx0.08mm  P-00008789  78-D018384 
EPS Foam Left-White,174mmx125mmx450mm  P-00008911  78-D022682 
EPS Foam Right-White,174mmx125mmx450mm  P-00008912  78-D022684 
Carton, 465mmx135mmx510mm  P-00008914  78-D022644 
Pedestal, Purple/Black  PL-00008321  40-D022658 
Panel Cover (Panel Protector Film)  PL-00006048  73-D005900
Description
CB-00000547  32F2818004 
CB-00004287  32F3018003
HW-00000553  42A9930008
HW-00006041  42A9940007
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.
 79  
ViewSonic Corporation 
Confidential - Do Not Copy    VX1962wm-1  
   VX1962wmp-1 
Page 83
ViewSonic Confidential  Creation Date: 09/29/05
 BOM LIST (VX1962WM-1)
ViewSonic Model Number: VS11979 
Rev: 1a
Serial No. Prefix: QUJ
Item  ViewSonic P/
1  HW-00008309 
2  M-00000560 
3  N/A 
4  N/A 
5  DC-00008010 
6  N/A 
7  N/A 
8  N/A
9  N/A  10-D022457
10  B-00008773 
11  N/A 
12  CB-00008591 
13  A-00008274 
14  CB-00008592 
15  A-00008170 
16  CB-00002083 
17  CB-00000547 
18  CB-00004287 
19  N/A 
20  B-00008878 
21  B-00008877 
22  N/A
23  N/A  36-D016758 
24  C-00008825
25  C-00008823 
26  C-00008824 
27  PL-00008320 
28  C-00008822 
29  N/A 
30  N/A 
31  HW-00000553 
32  HW-00000557 
33  HW-00006041 
34  HW-00008359 
35  HW-00008359 
36  N/A 
37  N/A 
38  PL-00006048 
39  N/A 
40  N/A
41  N/A  73-D016882 
42  N/A
43  N/A 
44  N/A 
45  DC-00008800 
46  DC-00008798 
47  DC-00008799 
48  N/A 
49  N/A 
50  N/A 
51  N/A 
52  N/A 
53  P-00008789 
54  P-00008913 
55  P-00008911 
56  P-00008912 
57  N/A 
58  N/A 
59  N/A
60  N/A  74-D007592
61  N/A  74-D007613
Ref. P/N  Descriptio
4261910001 SCREW,M2,P=0.4mm,L=2.2mm,FlatHead,CrosswithSlottedRecess,GreenI 
7345511002 Ta 
7345911004 Ta 
7349951002 TORAYSE-9187L,white,GreenI 
7741513161 SNLabelfor,A150X1-T02,75mmx40mm,PalletBarcodeLabel,Green 
7841795141 CornerProtector, 
10-D022392 Software 
10-D022393 Software
27-D021625 Li 
32-D016783 FunctionCable,Lam 
32-D019363 FFC,55Pins,PcbaX-AD 
32-D022217 PowerCord,SP-023+IS32-D022683 FFC,15Pins,PcbAD-OSD
32E1818056 PowerCord,LP-23A+LS-60,Black,Australia,1830mm,WithBa
32F0000004 Accessor 
32F2818004 Accessor 
32F3018003 Accessor 
35-D018283 PCBAfor,A190Z1-H,A190Z1-H-X,101 
35-D020021 PCBAfor,A220Z5-H,A190A8-H-S5,503-05,Rev.05,ODM,OD,GreenI 
35-D022395 PCBAfor,A190A8-H,A190A8-H-K3,801-02,Rev.02,GreenI 
36-D014384 DriverIC,COF,Data,M220Z1-L01,S6C1131,COF,6bit,642Channel,GreenI
40-D022652 RearAss 
40-D022653 SeatAss 
40-D022655 BezelAss 
40-D022657 StandAss 
40-D022659 CoverHin 
41-D016537 MetalFrameFront,M190Z1-L01,SECC0.5t,GreenI
41-D019497 CoverADAss 
42A9930008 SCREW,M3,P=0.5mm,L=4mm,PanHead,Philli 
42A9930017 SCREW,M3,P=1.27mm,L=8mm,PanHead,Philli 
42A9940007 SCREW,M4,P=0mm,L=11.8mm,Hexa
42-D020715 SCREW,M4,P=0.7mm,L=8mm,RoundHead,Philli
42-D020715 SCREW,M4,P=0.7mm,L=8mm,RoundHead,Philli
44-D020527 Backli
73-C000047 ACF,COG,AC-8405Z-231.5mmX100M,100000mmx1.5mm,COG-ACF,GreenI
73-D005900 PanelProtectorFilm,A190A2-H05,XG-536T=0.1,With
73-D008216 ACF,COF,AC-4255U1-16,200000mmx1.2mm,GreenI
73-D015762 IsolatedTa
73-D017876 ACF,PCB,AC-9825RS-35,100000mmx1.5mm,PCB-AC
73-D019100 ConductiveTa
73-D019104 ConductiveTa
76-D022553 MENUforA190Z1-H06,Com
77-D019393 Safet
77-D023770 Safet
77-D022556 CartonLabelfor,A190Z1-H06,76.2mmx76.2mm,VSC
77-D022560 SNLabelfor,A190Z1-H06,50mmx25mm,VSC
78-D001494 Pallet,A190E1-H01,Wooden,1150mmx970mmx135mm,7,GreenI
78-D004862 CornerProtector,Pa
78-D004868 CornerProtector,Pa
78-D018384 Ba
78-D022643 Carton,A190Z1-H06,465mmx135mmx510mm,VSC
78-D022682 Cushion,A190Z1-Z06,EPS,White,174mmx125mmx450mm,Left,Green
78-D022684 Cushion,A190Z1-Z06,EPS,White,174mmx125mmx450mm,Ri
79-D022665 Shi
L5J014XXXX 19"WTN,ResinBM,Asahi0.7mm,L
L5J014XXB
e,A170E1-H0P,900mmx50mmx0mm,OP 
e,M170E5-L09,45000mmx10mmx0.1m
er,A170e1-T02,50mmx50mmx900mm,T:3mm,Green 
EDID_D-SUB),A190Z1,VSCD920A00,VSC,Checksum(A1),D-Su 
EDID_DVI),A190Z1,VSCD920D00,VSC,Checksum(F6),DV
Software(BIOS),A190Z1,NR19Z1LN2000,VSC,Checksum(XXXX),OD2ms,CR1 
000:1
DCR4000:1
sWithoutAudio,BK.00092.101,D2,5V/2.5A,0V0A,4I,7mA,1200V,Green
Cable,DVI,Black,DVI-D(M)TODVI-D(M),S/L,W/2F,WithBag,Green 
Cable,Audio,NONE,Black,Pins-Pins,WithBag,Default,Green 
Cable,D-Sub,BLACK,A150X2,WithBag,Green
DriverIC,COG,Scan,M220Z1-L01,HX8653 
A00TPD400,256/263/240Channel,(HX8633shrankandTSMCFabVersion),GreenI
,A190Z1-H06,ASSY,Black,D-Sub+DVI+Audio,GreenI
,A190Z1-H06,ASSY,SilverBlack,GreenI
htUnit,M190Z1-L01,GreenI
ConductiveTape,A220Z3 
H01,AL+MYLAR(PET)+#1075(GLUE),60mmx24mmx0.15mm,MPR
Labelfor,A190Z1(M190Z1 
Labelfor,A190Z1-H06,120mmx50mm,VSC_VX1962wmVer.2,GreenI
,A190A2-H05,570mmx600mmx0.08mm,P
PackageInformationfor,A190Z1-H0
19"WTN,ResinBM,Asahi0.7mm,L 
Polarizer,TFT,Degree135,414mmx259.7mmx0.215mm,XT300CMM190A1H0 
M190A1,LGChem,LGHCREWV,Green 
Polarizer,CF,Degree135,415.84mmx262.15mmx0.215mm,XT320CMM190A1H 
T,M190A1,LGChem,LGHCREWV,Green
-Power-Lamp,CABLM3507676F,2Pins-2Pins,A220Z5 
A190Z1-H02,GreenI
A190Z1-H06,GreenI
,Default,Green
,A190Z1-H06,ASSY,SilverBlack,GreenI 
,A190Z1-H06,ASSY,SilverBlack,GreenI
e,A190Z1-H06,ABSPA-756S,Original,GreenI
,A190Z1,ASSY,Hidehole,VESA100x100,W/DVI,D
sCrossRecess,GreenI
sCrossRecess,Green
onStandOff,Socket,Green
sCrossRecess,headD8,GreenI 
sCrossRecess,headD8,GreenI
Prin
e,A220Z3-H01,FR83/PC770
e,A190A8,AL+Mylar,155mmx15mmx0.06m 
e,A190A8,AL+Mylar,277mmx15mmx0.06m
lex,4C,VSC_VX1962wm/VX1962wmp, CD
VX1962wm,GreenI
VX1962wm,GreenI
er,M240J1,50mmx50mmx1850mm,T:3mm,GreenI 
er,M201P1,50mmx50mmx800mm,T:3mm,Green
VX1962wm,GreenI
ht,Green
LocationUniversal number
0.004
0.002
0.018
0.036
0.00168
0.0022
0.0044
0.018
0.071
0.036
0.0833
Q't
3
0.4
1 
1
1 
1
1 
1 
1 
1 
1 
1 
1 
1 
1 
1 
1 
8
4 
1
1 
1 
1 
1 
1 
1 
4 
2 
4 
1 
4 
1
1
1 
6
2 
2 
1 
1 
1 
1 
1
1 
1 
1 
1 
1 
1
1
1
 80  
ViewSonic Corporation 
Confidential - Do Not Copy    VX1962wm-1  
   VX1962wmp-1 
Page 84
ViewSonic Confidential  Creation Date: 09/29/05
 BOM LIST (VX1962WMP-1)
ViewSonic Model Number: VS11979 
Rev: 1a
Serial No. Prefix: QWA
Item  ViewSonic P/
1  HW-00008309 
2  M-00000560 
3  N/A 
4  N/A 
5  DC-00008010 
6  N/A 
7  N/A 
8  N/A
9  N/A 
10  B-00008773 
11  N/A 
12  CB-00008591 
13  A-00008274 
14  CB-00008592 
15  A-00008170 
16  CB-00002083 
17  CB-00000547 
18  CB-00004287 
19  N/A 
20  B-00008878 
21  B-00008877 
22  N/A
23  N/A 
24  C-00008825 
25  C-00008827 
26  C-00008826 
27  PL-00008321 
28  C-00008822 
29  N/A 
30  N/A 
31  HW-00000553 
32  HW-00000557 
33  HW-00006041 
34  HW-00008359 
35  HW-00008359 
36  N/A 
37  N/A 
38  PL-00006048 
39  N/A
40  N/A
41  N/A 
42  N/A 
43  N/A 
44  N/A 
45  DC-00008800 
46  DC-00008798 
47  DC-00008801 
48  N/A 
49  N/A 
50  N/A 
51  N/A 
52  N/A 
53  P-00008789 
54  P-00008914 
55  P-00008911 
56  P-00008912 
57  N/A 
58  N/A 
59  N/A
60  N/A
61  N/A
Ref. P/N  Descriptio
4261910001 SCREW,M2,P=0.4mm,L=2.2mm,FlatHead,CrosswithSlottedRecess,GreenI 
7345511002 Ta 
7345911004 Ta 
7349951002 TORAYSE-9187L,white,GreenI 
7741513161 SNLabelfor,A150X1-T02,75mmx40mm,PalletBarcodeLabel,Green
7841795141 CornerProtector, 
10-D022392 Software 
10-D022393 Software
10-D022457 
27-D021625 Li
32-D016783 FunctionCable,Lam 
32-D019363 FFC,55Pins,PcbaX-AD 
32-D022217 PowerCord,SP-023+IS-
32-D022683 FFC,15Pins,PcbAD-OSD 
32E1818056 PowerCord,LP-23A+LS-60,Black,Australia,1830mm,WithBa 
32F0000004 Accessor 
32F2818004 Accessor 
32F3018003 Accessor 
35-D018283 PCBAfor,A190Z1-H,A190Z1-H-X,101 
35-D020021 PCBAfor,A220Z5-H,A190A8-H-S5,503-05,Rev.05,ODM,OD,GreenI 
35-D022395 PCBAfor,A190A8-H,A190A8-H-K3,801-02,Rev.02,GreenI 
36-D014384 DriverIC,COF,Data,M220Z1-L01,S6C1131,COF,6bit,642Channel,GreenI
36-D016758 
40-D022652 RearAss
40-D022654 BezelAss 
40-D022656 SeatAss 
40-D022658 StandAss 
40-D022659 CoverHin 
41-D016537 MetalFrameFront,M190Z1-L01,SECC0.5t,GreenI 
41-D019497 CoverADAss 
42A9930008 SCREW,M3,P=0.5mm,L=4mm,PanHead,Philli 
42A9930017 SCREW,M3,P=1.27mm,L=8mm,PanHead,Philli 
42A9940007 SCREW,M4,P=0mm,L=11.8mm,Hexa 
42-D020715 SCREW,M4,P=0.7mm,L=8mm,RoundHead,Philli 
42-D020715 SCREW,M4,P=0.7mm,L=8mm,RoundHead,Philli 
44-D020527 Backli
73-C000047 ACF,COG,AC-8405Z-231.5mmX100M,100000mmx1.5mm,COG-ACF,GreenI 
73-D005900 PanelProtectorFilm,A190A2-H05,XG-536T=0.1,With 
73-D008216 ACF,COF,AC-4255U1-16,200000mmx1.2mm,GreenI
73-D015762
73-D016882 
73-D017876 ACF,PCB,AC-9825RS-35,100000mmx1.5mm,PCB-AC
73-D019100 ConductiveTa 
73-D019104 ConductiveTa 
76-D022553 MENUforA190Z1-H06,Com 
77-D019393 Safet 
77-D023771 Safet 
77-D022555 CartonLabelfor,A190Z1-H06,76.2mmx76.2mm,VSC 
77-D022558 SNLabelfor,A190Z1-H06,50mmx25mm,VSC 
78-D001494 Pallet,A190E1-H01,Wooden,1150mmx970mmx135mm,7,GreenI 
78-D004862 CornerProtector,Pa 
78-D004868 CornerProtector,Pa 
78-D018384 Ba 
78-D022644 Carton,A190Z1-H06,465mmx135mmx510mm,VSC 
78-D022682 Cushion,A190Z1-Z06,EPS,White,174mmx125mmx450mm,Left,Green 
78-D022684 Cushion,A190Z1-Z06,EPS,White,174mmx125mmx450mm,Ri 
79-D022665 Shi
L5J014XXXX 19"WTN,ResinBM,Asahi0.7mm,L
L5J014XXB
74-D007592
74-D007613
e,A170E1-H0P,900mmx50mmx0mm,OP 
e,M170E5-L09,45000mmx10mmx0.1m
er,A170e1-T02,50mmx50mmx900mm,T:3mm,Green 
EDID_D-SUB),A190Z1,VSCD920A00,VSC,Checksum(A1),D-Su 
EDID_DVI),A190Z1,VSCD920D00,VSC,Checksum(F6),DV
Software(BIOS),A190Z1,NR19Z1LN2000,VSC,Checksum(XXXX),OD2ms,CR1 
000:1
DCR4000:1
sWithoutAudio,BK.00092.101,D2,5V/2.5A,0V0A,4I,7mA,1200V,Green
Cable,DVI,Black,DVI-D(M)TODVI-D(M),S/L,W/2F,WithBag,Green 
Cable,Audio,NONE,Black,Pins-Pins,WithBag,Default,Green 
Cable,D-Sub,BLACK,A150X2,WithBag,Green
DriverIC,COG,Scan,M220Z1-L01,HX8653 
A00TPD400,256/263/240Channel,(HX8633shrankandTSMCFabVersion),GreenI
,A190Z1-H06,ASSY,Black,D-Sub+DVI+Audio,GreenI
,A190Z1-H06,ASSY,PurpleBlack,GreenI
htUnit,M190Z1-L01,GreenI
IsolatedTape,A220Z3-H01,FR83/PC770 
83+TESA4972/5000NSU,145mmx125mmx0.1mm,LIP
ConductiveTape,A220Z3 
H01,AL+MYLAR(PET)+#1075(GLUE),60mmx24mmx0.15mm,MPR
Labelfor,A190Z1(M190Z1 
Labelfor,A190Z1-H06,120mmx50mm,VSC_VX1962wmpVer.2,GreenI
,A190A2-H05,570mmx600mmx0.08mm,ChinaRoHs,GreenI
PackageInformationfor,A190Z1-H0
19"WTN,ResinBM,Asahi0.7mm,L 
Polarizer,TFT,Degree135,414mmx259.7mmx0.215mm,XT300CMM190A1H0 
M190A1,LGChem,LGHCREWV,Green 
Polarizer,CF,Degree135,415.84mmx262.15mmx0.215mm,XT320CMM190A1H 
T,M190A1,LGChem,LGHCREWV,Green
-Power-Lamp,CABLM3507676F,2Pins-2Pins,A220Z5 
A190Z1-H02,GreenI
A190Z1-H06,GreenI
,Default,Green
,A190Z1-H06,ASSY,PurpleBlack,GreenI
,A190Z1-H06,ASSY,PurpleBlack,GreenI 
e,A190Z1-H06,ABSPA-756S,Original,GreenI
,A190Z1,ASSY,Hidehole,VESA100x100,W/DVI,D
sCrossRecess,GreenI
sCrossRecess,Green
onStandOff,Socket,Green
sCrossRecess,headD8,GreenI 
sCrossRecess,headD8,GreenI
Prin
e,A190A8,AL+Mylar,155mmx15mmx0.06m 
e,A190A8,AL+Mylar,277mmx15mmx0.06m
lex,4C,VSC_VX1962wm/VX1962wmp,CD
VX1962wmp,GreenI
VX1962wmp,GreenI
er,M240J1,50mmx50mmx1850mm,T:3mm,GreenI 
er,M201P1,50mmx50mmx800mm,T:3mm,Green
VX1962wmp,GreenI
ht,Green
LocationUniversal number
0.004
0.002
0.018
0.036
0.00168
0.0022
0.0044
0.018
0.071
0.036
0.0833
Q't
3
0.4
1 
1
1 
1
1 
1 
1 
1 
1 
1 
1 
1 
1 
1 
1 
8
4 
1
1 
1 
1 
1 
1 
1 
4 
2 
4 
1 
4 
1
1
1
6
2 
2 
1 
1 
1 
1 
1
1 
1 
1 
1 
1 
1
1
1
 81  
ViewSonic Corporation 
Confidential - Do Not Copy    VX1962wm-1  
   VX1962wmp-1 
Page 85
* Reader’s Response* 
Dear Readers: 
Thank you in advance for your feedback on our Service Manual, which allows continuous improvement 
of our products. We would appreciate your completion of the Assessment Matrix below, for return to 
ViewSonic Corporation. 
Assessment  
A.  What do you think about the content of this Service Manual?  
Unit   Excellent  Good   Fair   Bad 
1. Precautions and Safety Notices 
2. Specification 
3. Front Panel Function Control Description 
4. Circuit Description 
5. Adjustment Procedure 
6. Troubleshooting Flow Chart 
7. Block Diagrams 
8. Schematic Diagrams 
9.PCB Layout Diagrams 
10. Exploded Diagram and Exploded Parts List 
11. Recommended Spare Parts List 
B. Are you satisfied with this Service Manual?  
Item   Excellent   Good   Fair   Bad 
1. Service Manual Content 
2. Service Manual Layout 
3. The form and listing 
C. Do you have any other opinions or suggestions regarding this service manual?  
Name: 
Reader’s basic dada:
Title: 
Company:  
Add:  
Tel: 
Fax: 
E-mail: 
After completing this form, please return it to ViewSonic Quality Assurance in the USA at facsimile 
1-909-839-7943. You may also e-mail any suggestions to the Director, Quality Systems & 
Processes (marc.maupin@viewsonic.com) 
 82  
ViewSonic Corporation 
   VX1962wmp-1 
Confidential - Do Not Copy    VX1962wm-1