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 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 trademar k of ViewSonic Corporation. 
ViewSonic is a registered trademar k of ViewSonic Corporation. 
All other trademarks used within this document ar e the property of their respective owners. 
 
 
 
Revision History 
Revision  SM Editing Date  ECR Number  Description of Changes  Editor 
1a  10/29/2006      Initial Release                                                      Jamie Chang 
       
       
       
       
       
       
  
						

							
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  in areas that are wet or where water or ot her liquids may come in contact with it, 
such as bathrooms, kitchens, wet floors, near  washing machines or by swimming pools. 
4.  Remove the power plug from the electrical sock et before cleaning. No water-containing cleaning agent 
should be used to clean the screen,  but only cleaning agents formulated specifically for cleaning LCD 
screens. Do not put any liquid cleaning agent directly on  the screen, but put it on a soft cloth first and then 
gently apply the cloth to the screen. 
5.  In order to guarantee reliable operation and adequat e heat dissipation, do not cover or block vent holes 
on the monitor. Do not put the monitor close to heat  sources. Do not place the monitor on furniture such 
as a bookshelf, unless sufficient  ventilation is available. 
6.  A 3-pin grounding plug is provided for this monito r. In order to guarantee normal operation and safety of 
this unit, this plug should be used wi th a matching grounded power socket. 
7.  Please follow all warnings and instru ctions that accompany the monitor. 
8.  Please pay special attention to  power supply overloads, as electrical shock or fire may occur. 
9.  Do not place anything on the power cord. Do not  hang the power cord over an area where people or 
objects may pass. 
10.  In case the monitor is not be us ed for an extended period, turn off pow er to avoid the possibility of short 
circuits caused by lightning.   
11.  In order to avoid electrical s hock or fire risks, do not insert any object through any openings in the 
monitor’s enclosure. Do not allow any liquid  to come in contact with the monitor. 
12.  In case of any abnormal noise or odor caused by  incorrect operation, turn off power immediately and 
contact a professional technician. Do not attempt to re pair this monitor by yourself, as electrical shock 
may occur when opening the back cover  or accessing internal components. 
13.  If any of the following conditions occurs, turn  off power and contact a repair service provider:   
1)  the power cord is damaged or worn; 
2)  liquid has gotten into the monitor, or the  monitor has experienced immersion or wetting; 
3)  the monitor has fallen; 
4)  the monitor’s perform ance shows obvious changes; 
5)  the monitor fails to work normally when correct  procedures are followed. In that case, please make 
any adjustments in accordance with instructions  supplied with the monitor; do not attempt any 
changes to established procedures,  as further damage may occur, making successful repair of the 
monitor more difficult.   
14.      In case parts need to be replaced, you must us e identical parts or those supplied by our certified 
manufacturers. Any other parts used wit hout our authorization may result in electrical shock or fire risk. 
  
						

							
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”
 
 
 
  
  
						

							
ViewSonic Corporation Confidential - Do Not Copy    VG930m-3_VA930m-1 
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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 VESA-DDC2B plug & play function 
„ Supported VESA-DPMS power management function 
„ LVDS (Low Voltage Differential Signaling) interface (2 pixels/clock) 
 
1 LCD PANEL   (1
st 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 
  HSD190ME13-A16 
19 Color a-Si TFT Active Matrix 1280x1024 LCD
0.294 mm x 0.294 mm 
Anti-Glare, Hard coating (3H) 
700 :1   
150/135 (degrees; typ) 
160/155 (degrees; typ) 
16.2 million colors (6+2 bit panel) 
300 cd/m2 
8 ms 
 
4 CCFL 
50000 Hrs (Min) 
3 mg per lamp 
2 LCD PANEL 
 (2nd 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- A10 
19 Color a-Si TFT Active Matrix 1280x1024 LCD
0.294 mm x 0.294 mm 
Anti-Glare, Hard coating (3H) 
700 :1   
150/135 (degrees; typ) 
N/A (degrees; typ) 
16.2 million colors (6+2 bit panel) 
300 cd/m2 
8 ms 
 
4 CCFL 
40000 Hrs (Min) 
3 mg per lamp  
						

							
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 (6+2 bit panel) 
300 cd/m2 
8 ms 
 
4 CCFL 
50000 Hrs (Max)/ 40000Hrs @ 7.5mA 
3 mg per lamp 
3 INPUT SIGNAL  Video 
Sync  
RGB Analog (75 ohms, 
0.7 / 1.0 Vp-p), DVI 
(TMDS, 100 ohms) 
Separate Sync / Composite Sync / SOG 
Fh = 24 – 82 kHz ; Fv = 50 – 75 Hz 
4 COMPATIBILITY PC  Mac  
  PC Compatibles (from VGA up to 1280x1024 Non 
Interlaced) 
Power Mac (up to 1280X1024 ) 
5 RESOLUTION 
   Recommended 
 
   
1280x1024 @ 60Hz 
640 x 350 @ 70Hz 
640 x 400 @ 60, 70Hz 
640 x 480 @ 50, 60, 67, 72, 75Hz 
720 x 400 @ 70Hz 
720 x 480 @ 60Hz 
720 x 576 @ 50Hz 
800 x 600 @ 50, 56, 60, 72, 75Hz 
832 x 624 @ 75Hz 
1024 x 768 @ 50, 60, 70, 75Hz 
1152 x 864 @ 75Hz 
1152 x 870 @ 75Hz 
1152 x 900 @ 67Hz 
1280 x 720 @ 50, 60Hz 
1280 x 768 @ 50, 60, 75Hz 
1280 x 960 @ 50, 60, 75Hz 
1280 x 1024 @ 50, 60, 75Hz
 
6 AUDIO  Speaker 
   1.5W x2 
7 CONNECTORS  
   Video 
  
 
Power   
Analog 
 
Digital DB-15 
DVI 
Internal Power Adapter, 3-pin plug (CEE22) 
8 POWER  Voltage 
Consumption  
 
Typ/Max AC 100-240V (Universal); 50-60 Hz 
35 W / 40 W 
9 ERGONOMICS  Tilt 
Swivel 
Height Adjust  
  20 ~ -5 degrees 
360 degrees 
0 ~ 80 mm  
						

							
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, Resolution Notice, OSD  Position, OSD Time Out, OSD Background 
Memory Recall 
    
[ 1 ] : Main Menu 
[ 2 ] : Input Select 
[Up] or [Dn] : C ontrast / Brightness 
[Up] + [Dn] : Recall  both of Contrast and 
Brightness to default 
[ 1 ] + [ 2 ] : Toggle 720x400 and 640x400 mode
[ 1 ] + [Up] + [Dn] : Auto White Balance 
[ 1 ] + [Dn] : Power Lock 
[ 1 ] + [Up] : OSD Lock 
11 BANDWIDTH        135 MHz 
12 OPERATING 
CONDITION  Temperature 
Humidity 
 
  32°F to 104°F (0°C to 40°C) 
10% to 90% (no condensation) 
13 STORAGE / 
SHIPPING  
CONDITION  Temperature 
Humidity 
 
 
-4°F to 140°F (-20°C to 60°C) ° 
10% to 90% (no condensation) 
 
14 DIMENSIONS  Physical: 
(W x H x D)   
 
 
 
 
Packing 
(W x H x D) Display 
w Stand 
 
Wall 
Mount 
 
428 mm (W) x 479 mm (H) x 230 mm (D) 
16.8 (W) x 18.8 (H) x 9.0 (D) 
 
428 mm (W) x399 mm (H) x 68 mm (D) 
16.8 (W) x 15.7 (H) x 2.6 (D) 
 
486 mm (W) x 590 mm (H) x 278 mm (D) 
19.13 (W) x 23.23 (H) x 10.94 (D) 
 
15 WEIGHT   
Net 
Gross 
  6.0Kg (13.33 lbs) 
7.2Kg (16 lbs) 
16 REGULATIONS 
  
   UL/CUL, FCC (ICES-003B), CB, CE, TCO03 
TUV/GS, TUV ERGO(covers ISO13406-2 & 
MPRII), IRAM, VCCI, 
GOST-R, HYGIENIC (20 
copies), Energy Star, CCC, BSMI, PSB, C-TICK, 
SASO, WEEE, RoHS 
17 RELIABILITY  MTBF     100,000 Hr (Excluding Panel). 
18 POWER 
SAVING 
FUNCTION  On 
 Active Off 
“Off” Blue 
Amber 
Off Normal 
≦1 W 
≦1 W  
						

							
ViewSonic Corporation Confidential - Do Not Copy    VG930m-3_VA930m-1 
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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. 
22 Package Contents  LCD Display 
Power Cable 
Video Cable 
Audio Cable 
Quick Start Guide 
ViewSonic Wizard CD-ROM 
23 Packaging   
Information  Carton -- One piece constructi
on with signal wall, 0.65 Kg 
Plastic Handle -- PE-LD, 12g 
Poly Foam -- EPS, 207g, 2 pices 
Accessory Plastic Bags -- PE-LD, 2g 
The PE bag that cover monitor -- PE-LD, 18g 
Pallet (M Model ) -- Fu migation wood, 22.5Kg 
Pallet (Others) -- Poplar, 22.5Kg