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Service Manual
ViewSonic VG510b/s-1
Model No. VLCDS27955-1W/-2W
15" Color TFT LCD Display
(VG510b/s_SM_722 Rev. 1a Apr. 2004)
ViewSonic 381 Brea Canyon Road, Walnut, California 91789 USA - (800) 888-8583
Copyright
Copyright 2004 by ViewSonic Corporation. All rights reserved. No part of this publication may be
reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any language or
computer language, in any form or by any means, electronic, mechanical, magnetic, optical, chemical,
manual or otherwise, without the prior written permission of ViewSonic Corporation.
Disclaimer
ViewSonic makes no representations or warranties, either expressed or implied, with respect to the
contents hereof and specifically disclaims any warranty of merchantability or fitness for any particular
purpose. Further, ViewSonic reserves the right to revise this publication and to make changes from time
to time in the contents hereof without obligation of ViewSonic to notify any person of such revision or
changes.
Trademarks
Optiquest is a registered trademark of ViewSonic Corporation.
ViewSonic is a registered trademark of ViewSonic Corporation.
All other trademarks used within this document are the property of their respective owners.
Revision History
Revision Date Description Of Changes Approval
1a 04/14/04 Initial Release DCN-3611 Angela Lu
ViewSonic Corporation Confidential - Do Not Copy VG510b/s
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TABLE OF CONTENTS
1. Precautions and Safety Notices 1
2. Specification 2
3. Front Panel Function Control Description 5
4. Circuit Description 7
5. Adjusting Procedure 8
6. Trouble Shooting Flow Chart 9
7. Recommended Spare Parts List 14
8. Exploded Diagram And Spare Parts List 22
9. Block Diagram 24
10. Schematic Diagrams 25
11. PCB Layout Diagrams 33
ViewSonic Corporation Confidential - Do Not Copy VG510b/s
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1. Precautions and Safety Notices
Prior to using this manual, please ensure that you have carefully followed all the procedures
outlined in the user manual for this product.
Read all of these instructions.
Save these instructions for later use.
Follow all warnings and instructions marked on the product.
Do not use this product near water.
This display should be installed on a solid horizontal base.
When cleaning, use only a neutral detergent cleaner with a soft damp cloth. Do not spray with
liquid or aerosol cleaners.
Do not expose this display to direct sunlight or heat. Hot air may cause damage to the cabinet
and other parts.
Adequate ventilation must be maintained to ensure reliable and continued operation and to
protect the display from overheating. Do not block ventilation slots and openings with
objects or install the display in a place where ventilation may be hindered.
Do not install this display near a motor or transformer where strong magnetism is generated.
Images on the display will become distorted and the color irregular.
Do not allow metal pieces or objects of any kind fall into the display from ventilation holes.
Slots and openings in the cabinet and the back or bottom are provided for ventilation, to ensure
reliable operation of the product and to protect it from overheating, those openings muse not
be blocked or covered. The openings should never be blocked by placing the product on a bed,
sofa, rug, or other similar surface. This product should never be placed near or over a radiator
or heat register. This product should not be placed in a built-in installation unless proper ventilation
is provided.
ViewSonic Corporation Confidential - Do Not Copy VG510b/s
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2. Specification
2.1. PRODUCT SPECIFICATIONS
LCD panel type 15.0" TFT (15.0" Diagonal)
Displayable resolution XGA 1024 x 768 maximum
Pixel dimension 0.297 mm horizontal x 0.297 mm vertical
LCD display color 16.8M Colors Max.
OSD control AUTO CONFIG, BRIGHTNSS,
CONTRAST, COLOR (R, G, B, BLACK LEVEL ADJUST),
POSITION(H-POSITION, V-POSITION ),IMAGE (PHASE,
CLOCK ),
SETUP MENU (RESET,OSD POSITION, SYSTEM INFO )
Manualcontrolbuttons MENU, Select, Adjust(up,down), Power.Mute,+,-
Viewing angle Horizontal: