Viewsonic VA2012w VA2012wb SM Rev[1].1a free download

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Service Manual ViewSonic VA2012w VA2012wb Model No. VS10859 20" Color TFT LCD Display (VA2012w_VA2012wb_SM Rev. 1a Nov. 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 11/29/05 Initial Release BonnieT. ViewSonic Corporation Confidential - Do Not Copy VA2012wb i TABLE OF CONTENTS 1. Precautions and Safety Notices 1 2. Specification 5 3. Front Panel Function Control Description 12 4. Circuit Description 14 5. Adjustment Procedure 25 6. Troubleshooting Flow Chart 51 7. Recommended Spare Parts List 54 8. Exploded Diagram and Exploded Parts List 60 9. Block Diagram 64 10. Schematic Diagrams 65 11. PCB Layout Diagrams 72 ViewSonic Corporation