ViewSonic Vg930m3 Service Manual

 
 
ViewSonic VG930m-3  VA930m-1 
Model No. VS11369 
19” Color TFT LCD  Display 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
(VG930m-3_VA930m-1_SM Rev. 1a Oct. 2006) 
ViewSonic 381 Brea Canyon Road, Walnut, California 91789 USA - (800) 888-8583 
Service Manual  

ViewSonic Corporation Confidential - Do Not Copy    VG930m-3_VA930m-1 
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Copyright 
Copyright © 2006 by ViewSonic Corporation.    All  rights reserved.    No part of this publication 
may be reproduced, transmitted, tran scribed, 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 ot herwise, without the prior written permission of ViewSonic 
Corporation. 
 
Disclaimer...

ViewSonic Corporation Confidential - Do Not Copy    VG930m-3_VA930m-1 
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TABLE OF CONTENTS 
 
 
1.  Precautions and Safety Notices    1
2. Specification   4
3.  Front Panel Function Control Description   8
4. Circuit Description  14
5. Adjustment Procedure  21
6.  Troubleshooting Flow Chart 53
7.  Recommended Spare Parts List 61
8. Exploded Diagram and Exploded Parts List  66
9. Block Diagram  69
10. Schematic Diagrams 70
11.  PCB Layout Diagrams 75
 
  

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1. Precautions and Safety Notices 
1.  Please carefully read this manual  before operating the device and keep it available for future reference. 
2.  To avoid the danger of the moni tor falling and thereby possibly causing injury and/or    serious damage to 
the monitor itself, do not place it  on unstable cars or desks. Be carefu l to avoid placing any stress on the 
LCD screen during handling. 
3.  Do not place this monitor...

ViewSonic Corporation Confidential - Do Not Copy    VG930m-3_VA930m-1 
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Handing and Placing methods
 
Correct methods Incorrect methods 
Only touch the metal frame of the LCD panel or the front 
cover of the monitor, DO not touch the surface of the POL Surface of the LCD panel is
 pressed by fingers and that 
may cause”mura”  
  
Take out the monitor with cushions Taking out the monitor by gr asping the LCD panel, that 
May cause”mura”
 
 
 
  
  

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Correct methods Incorrect methods 
Place the monitor on a clean and soft foam pad Placing the monitor on a foreign objects, that could 
scratch The surface of the Panel or cause mura 
  
 The panel is placed facedown the lap,that may cause 
mura 
 
 
  

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2. Specification 
Introduction 
The purpose of this document is to define  design and performance requirements for  MR19V (using 
RTD2523B  and HSD 19”  panel), the  19.X-inch TFT-LCD monitor. 
Features 
„  19 ” SXGA TFT LCD panel 
„ TN (Twist Nematic) Mode 
„ Analog input up to 1280X1024@75Hz 
„ 4 dual CCFTs (Cold Cathode Fluorescent Tube) 
„ Supported to 75Hz refresh rate 
„ Supported to 16.2M colors display 
„ Supported...

ViewSonic Corporation Confidential - Do Not Copy    VG930m-3_VA930m-1 
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 LCD PANEL 
  (3
rd source)  Panel:  
Size 
Pixel Arrange 
Glass 
Treatment 
Contrast Ratio 
Viewing Angle 
 
Colors 
Luminance 
Response 
Time 
Backlight 
Backlight Life 
Mercury   
 
   
    
   
   
 
CR >= 
10 
CR >= 5
   
 
On/Off 
  HSD 190ME13-D10 
19 Color a-Si TFT Active Matrix 1280x1024 LCD
0.294 mm x 0.294 mm 
Anti-Glare, Hard coating (3H) 
700 :1   
150/140 (degrees; typ) 
N/A (degrees; typ) 
16.2 million colors...

ViewSonic Corporation Confidential - Do Not Copy    VG930m-3_VA930m-1 
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10 CONTROLS 
   Physical 
 
OSD Function 
 
 
    Key 
buttons 
 
Main 
Menu 
 
 
 
 
 
 
 
 
 
 
 
 
 
Short cut 
key 
 
 [PW], [Mute], [ 2 ], 
[Up], [Dn], [ 1 ] 
 
Auto Image Adjust 
Contrast/Brightness 
Input Select 
 Analog, Digital 
Color Adjust 
  sRGB, 9300K, 7500K, 6500K, 5400K, User 
Color [R, G, B] 
Information 
Manual Image Adjust 
  Horizontal Size, H/V Position, Fine Tune, 
Sharpness 
Setup Menu 
  Language Select,...

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18 POWER 
SAVING 
FUNCTION  On 
 Active Off 
“Off” Blue 
Amber 
Off Normal 
≦1 W 
≦1 W 
19 LOGISTICS  Container 
Load 
(20 / 40) 
Pallet Load 
UPC Code 
Serial Format 
EDID Code 
Country of 
origin Standard
 
 
260 / 624 pieces 
 
 
26 pieces 
76690722783 3 
QC2 
Byte 10 – 0 x 1E, Byte 11 – 0 x 
99 
China 
20 Wall Mount  VESA     100mm x 100mm 
21 OTHERS        DDC/2B, KENSINGTON MicroSaver Security 
Compatible, WorldWide Model....