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The document includes copyright, disclaimer, trademark notices, and a revision history. It provides detailed precautions for appropriate operation, cleaning, power and environmental limitations, and immediate actions when smoke or abnormal conditions occur. It also specifies safety checks for high-voltage inverter-related areas and power supply operating range (90–264Vac), plus LCD module handling precautions such as protecting the front polarizer, avoiding water contact, managing static electricity for CMOS LSI, and safe disposal considerations for the cold cathode fluorescent lamp.",{"@graph":69,"@context":122},[70,84,105],{"@type":71,"itemListElement":72},"BreadcrumbList",[73,77,79,82],{"item":74,"name":75,"@type":76,"position":8},"https://docshare.wps.com","Home","ListItem",{"item":78,"name":9,"@type":76,"position":14},"https://docshare.wps.com/document/",{"item":80,"name":30,"@type":76,"position":81},"https://docshare.wps.com/document/technology/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/viewsonic-vtms2431-service-manual-precautions-and-safety-notices/561072/",{"url":83,"name":65,"@type":85,"image":86,"author":91,"headline":65,"publisher":94,"fileFormat":97,"inLanguage":63,"description":67,"dateModified":98,"datePublished":99,"encodingFormat":97,"isAccessibleForFree":100,"interactionStatistic":101},"DigitalDocument",{"url":87,"@type":88,"width":89,"height":90},"https://docshare.wps.com/thumbnails/viewsonic-vtms2431-service-manual-precautions-and-safety-notices/561072.png","ImageObject",300,407,{"name":92,"@type":93},"Stanley","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-10-16","2026-10-12",true,{"@type":102,"interactionType":103,"userInteractionCount":81},"InteractionCounter",{"@type":104},"ViewAction",{"@type":106,"mainEntity":107},"FAQPage",[108,114,118],{"name":109,"@type":110,"acceptedAnswer":111},"What should be done before cleaning the LCD TV product?","Question",{"text":112,"@type":113},"Turn off the product before cleaning, then use only a dry soft cloth for the LCD panel surface and a soft cloth soaked with mild detergent for the display housing.","Answer",{"name":115,"@type":110,"acceptedAnswer":116},"What environmental and usage conditions must be avoided?",{"text":117,"@type":113},"Do not operate under extremely hot, cold, or humid conditions; avoid areas with excessive dust and dirt; keep away from locations near strong magnetic fields; and do not place the product in direct sunlight.",{"name":119,"@type":110,"acceptedAnswer":120},"What precautions are required when handling the LCD module?",{"text":121,"@type":113},"Pay attention not to scratch the front polarizer, turn off power supply when inserting or disconnecting connectors, wipe water drops immediately, avoid pressing or bending the TFT module, manage static electricity for CMOS LSI, and follow local regulations for disposing of the CCFL mercury content.","https://schema.org",{"og:url":83,"og:type":124,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":126,"canonical":83},"index,follow",{"doc_id":128,"site_id":62},561072,1791884606,{"code":4,"msg":5,"data":131},{"doc_id":128,"user_id":132,"nickname":92,"user_avatar":133,"doc_module":4,"category_id":29,"category_name":30,"doc_title":65,"doc_description":67,"doc_content":134,"file_id":135,"file_url":136,"file_type":137,"file_size":138,"view_count":81,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":139,"language":140,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":141,"faqs":142,"seo_title":143,"seo_description":67,"update_tm":144,"read_time":145},2336477405376,"https://ap-avatar.wpscdn.com/davatar_29158cc5080c5b710cf443261637dec0","Service Manual  \nViewSonic VTMS2431  \nModel No. VS12335-2M  \n23.6” LCD TV  \n(VTMS2431_SM Rev. 1a Apr. 2009)  \nViewSonic® 381 Brea Canyon Road, Walnut, California 91789 USA- (800) 888-8583  \nCopyright  \nCopyright© 2009 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.  \nDisclaimer  \nViewSonic 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.  \nTrademarks  \nOptiquestis a registered trademark of ViewSonic Corporation.  \nViewSonic is a registered trademark of ViewSonic Corporation.  \nAll other trademarks used within this document are the property of their respective owners.  \nRevision History  \n\n| Revision | SM Editing Date | ECR Number | Description of Changes | Editor |\n| --- | --- | --- | --- | --- |\n| 1a | 04/21/09 |  | Initial Release | Sophia Kao |\n|  |  |  |  |  |\n|  |  |  |  |  |\n|  |  |  |  |  |\n|  |  |  |  |  |\n|  |  |  |  |  |\n|  |  |  |  |  |\n\nViewSonic Corporation  \ni  \nConfidential-Do Not Copy  VTMS2431  \nTABLE OF CONTENTS  \n1. Precautions and Safety Notices................................................................. 1  \n2. Specification................................................................................................. 3  \n3. Front Panel Function Control Description................................................ 9  \n4. Circuit Description....................................................................................... 30  \n5. Adjustment Procedure ................................................................................ 37  \n6. Trouble Shooting Flow Chart..................................................................... 64  \n7. Block Diagram ............................................................................................. 67  \n8. Schematic Diagrams.................................................................................... 68  \n9. PCB Layout Diagrams ................................................................................. 87  \n10. Exploded View And Exploded Parts List..................................................94  \n11. Recommend Spare Parts List................................................................... 97  \nViewSonic Corporation  \nii  \nConfidential-Do Not Copy  VTMS2431  \n1. Precautions and Safety Notices  \n1. Appropriate Operation  \n(1) Turn off the product before cleaning.  \n(2) Use only a dry soft cloth when cleaning the LCD panel surface.  \n(3) Use a soft cloth soaked with mild detergent to clean the display housing.  \n(4) Disconnect the power plug from AC outlet if the product is not used for a long period of time.  \n(5) If smoke, abnormal noise, or strange odor is present, immediately switch the LCD display off.  \n(6) Do not touch the LCD panel surface with sharp or hard objects.  \n(7) Do not place heavy objects on the LCD display, video cable, or power cord.  \n(8) Do not use abrasive cleaners, waxes or solvents for your cleaning.  \n(9) Do not operate the product under the following conditions:  \n-Extremely hot, cold or humid environment.  \n-Areas susceptible to excessive dust and dirt.  \n-Near any appliance generating a strong magnetic field.  \n-Place in direct sunlight.  \n2. Caution  \nNo modification of any circuit should be attempted. Service work should only be performed after you are thoroughly familiar with all ofthe following safety checks and servicing guide","cbCailX42CKvo8d4","https://ap.wps.com/l/cbCailX42CKvo8d4","pdf",19733085,102,"English","# 1. Precautions and Safety Notices\n## 1. Appropriate Operation\n## 2. Caution\n## 3. Safety Check\n## 4. Power Supply Requirements\n## 5. LCD Module Handling Precautions","[{\"question\":\"What should be done before cleaning the LCD TV product?\",\"answer\":\"Turn off the product before cleaning, then use only a dry soft cloth for the LCD panel surface and a soft cloth soaked with mild detergent for the display housing.\"},{\"question\":\"What environmental and usage conditions must be avoided?\",\"answer\":\"Do not operate under extremely hot, cold, or humid conditions; avoid areas with excessive dust and dirt; keep away from locations near strong magnetic fields; and do not place the product in direct sunlight.\"},{\"question\":\"What precautions are required when handling the LCD module?\",\"answer\":\"Pay attention not to scratch the front polarizer, turn off power supply when inserting or disconnecting connectors, wipe water drops immediately, avoid pressing or bending the TFT module, manage static electricity for CMOS LSI, and follow local regulations for disposing of the CCFL mercury content.\"}]","ViewSonic VTMS2431 Service Manual - Precautions and Safety Notices | PDF",1791804924,257]