Viewsonic va902-1 sm 1a free download

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Service Manual ViewSonic VA902/b Model No. VS10780 19" Color TFT LCD Display (VA902/b_SM Rev. 1a Oct. 2005 ) ViewSonic 381 Brea Canyon Road, Walnut, California 91789 USA - (800) 888-8583 Copyright Copyright 2005 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 SM Editing Date ECR Number Description of Changes Editor 1a 10/20/2005 Initial Release G. Han ViewSonic Corporation Confidential - Do Not Copy VA902/b i TABLE OF CONTENTS 1. Precautions and Safety Notices 1 2. Service Tools & Equipment Required 3 3. Circuit Theory 4 4. Disassembly & Assembly 15 5. Test and Adjustment 19 6. Troubleshooting 24 7. Recommended Parts List 32 8. Schematic Diagrams 42 9. PCB Layout Diagrams 46 ViewSonic Corporation Confidential - Do Not Copy VA902/b ii 1. Precautions and Safety Notices 1. Appropriate Operation (1) Turn off the product before cleaning. (2) Use onl