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Covers safety information, FRU replacement strategies, general checkout including diagnostics and power system checks, and related service information such as recovery options, password management, power management, and symptom-to-FRU indexing. Includes locations of controls, connectors, indicators, and major FRUs, plus FRU replacement notices and step-by-step removal or replacement guidance for components, ending with appendix references for notices and abbreviations.",{"@graph":69,"@context":121},[70,84,104],{"@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":35,"@type":76,"position":81},"https://docshare.wps.com/document/healthcare/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/thinkpad-yoga-12-hardware-maintenance-manual-first-edition-january-2015/644417/",{"url":83,"name":65,"@type":85,"image":86,"author":91,"headline":65,"publisher":94,"fileFormat":97,"inLanguage":63,"description":67,"dateModified":98,"datePublished":98,"encodingFormat":97,"isAccessibleForFree":99,"interactionStatistic":100},"DigitalDocument",{"url":87,"@type":88,"width":89,"height":90},"https://docshare.wps.com/thumbnails/thinkpad-yoga-12-hardware-maintenance-manual-first-edition-january-2015/644417.png","ImageObject",300,407,{"name":92,"@type":93},"Oliver","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-10-23",true,{"@type":101,"interactionType":102,"userInteractionCount":4},"InteractionCounter",{"@type":103},"ViewAction",{"@type":105,"mainEntity":106},"FAQPage",[107,113,117],{"name":108,"@type":109,"acceptedAnswer":110},"What safety topics does this manual cover before servicing?","Question",{"text":111,"@type":112},"It covers general safety, electrical safety, safety inspection guidance, electrostatic discharge handling, grounding requirements, and multilingual safety notices.","Answer",{"name":114,"@type":109,"acceptedAnswer":115},"How does the manual guide FRU replacement and service troubleshooting?",{"text":116,"@type":112},"It provides strategies for replacing FRUs and specific components, explains how to use error messages, and includes a symptom-to-FRU index with numeric error codes and error message sections.",{"name":118,"@type":109,"acceptedAnswer":119},"What recovery and reset options are described for Windows 8.1?",{"text":120,"@type":112},"It explains restoring factory contents with a product Recovery Disc Set, using Windows recovery programs on Windows 8.1, refreshing the computer, resetting to factory defaults, and advanced startup options.","https://schema.org",{"og:url":83,"og:type":123,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":125,"canonical":83},"index,follow",{"doc_id":127,"site_id":62},644417,1792726148,{"code":4,"msg":5,"data":130},{"doc_id":127,"user_id":131,"nickname":92,"user_avatar":132,"doc_module":4,"category_id":34,"category_name":35,"doc_title":65,"doc_description":67,"doc_content":133,"file_id":134,"file_url":135,"file_type":136,"file_size":137,"view_count":4,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":138,"language":139,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":140,"faqs":141,"seo_title":142,"seo_description":67,"update_tm":128,"read_time":143},8796095461610,"https://ap-avatar.wpscdn.com/davatar_276721f389ce27ea32af1340a28f341c","Hardware Maintenance Manual  \nThinkPad Yoga 12  \nNote: Before using this information and the product it supports, be sure to read the general information under Appendix A “Notices” on page 103.  \nFirst Edition (January 2015)  \n© Copyright Lenovo 2015.  \nLIMITED AND RESTRICTED RIGHTS NOTICE: If data or software is delivered pursuant a General Services Administration“GSA” contract, use, reproduction, or disclosure is subject to restrictions set forth in Contract No. GS-35F-05925 .  \nContents  \nAbout this manual........... iii  \nChapter 1. Safety information...... 1  \nGeneral safety . . . . . . . . . . . . . . . . 1  \nElectrical safety . . . . . . . . . . . . . . . 1  \nSafety inspection guide . . . . . . . . . . . . 2  \nHandling devices that are sensitive to electrostatic  \ndischarge . . . . . . . . . . . . . . . . . . 3  \nGrounding requirements . . . . . . . . . . . . 4  \nSafety notices (multilingual translations) . . . . . . 4  \nChapter 2. Important service  \ninformation .............. 19  \nStrategy for replacing FRUs . . . . . . . . . 19  \nStrategy for replacing a hard disk drive or a solid-state drive ............ 19  \nImportant notice for replacing a system board ................ 20  \nHow to use error message . . . . . . . . 20  \nStrategy for replacing FRUs for CTO, special bid  \nmodel, and standard models . . . . . . . . . 20  \nProduct definition . . . . . . . . . . . . 20  \nFRU identification. . . . . . . . . . . . 21  \nChapter 3. General checkout . . . . . 23  \nWhat to do first . . . . . . . . . . . . . . 23  \nCheckout guide . . . . . . . . . . . . . . 24  \nLenovo Solution Center . . . . . . . . . 24  \nQuick test programs . . . . . . . . . . . 24  \nUEFI diagnostic program . . . . . . . . . 25  \nBootable diagnostic programs . . . . . . . 26  \nPower system checkout . . . . . . . . . . . 27  \nChecking the ac power adapter . . . . . . 27  \nChecking the built-in battery and operational  \ncharging . . . . . . . . . . . . . . . 27  \nChecking the coin-cell battery . . . . . . . 28  \nChapter 4. Related service information .............. 29  \nRestoring the factory contents by using the product Recovery Disc Set .......... 29  \nUsing the Windows recovery programs on the Windows 8.1 operating system ........ 30  \nRefreshing your computer . . . . . . . . 30  \nResetting your computer to the factory default settings................ 30  \nUsing the advanced startup options .... 31  \nRecovering your operating system if Windows 8.1 fails to start............. 31  \nCreating and using recovery media . . . . . 31  \nPasswords . . . . . . . . . . . . . . . . 32  \nPower-on password . . . . . . . . . . . 32  \nHard disk password . . . . . . . . . . . 33  \nSupervisor password . . . . . . . . . . 33  \nHow to remove the power-on password ... 33  \nHow to remove the hard disk password ... 34  \nPower management . . . . . . . . . . . . 34  \nScreen blank mode (for the Windows 7  \noperating system only) . . . . . . . . . . 34  \nSleep mode . . . . . . . . . . . . . . 34  \nHibernation mode . . . . . . . . . . . 35  \nSymptom-to-FRU index . . . . . . . . . . . 35  \nNumeric error codes . . . . . . . . . . 36  \nError messages . . . . . . . . . . . . 37  \nBeep symptoms . . . . . . . . . . . . 37  \nNo-beep symptoms . . . . . . . . . . . 38  \nLCD-related symptoms . . . . . . . . . 38  \nIntermittent problems . . . . . . . . . . 39  \nUndetermined problems . . . . . . . . . 39  \nChapter 5. Status indicators ..... 41  \nChapter 6. Function keys ....... 43  \nChapter 7. Locations ......... 45  \nLocating computer controls, connectors, and indicators ................. 45  \nFront view . . . . . . . . . . . . . . . 45  \nRear view . . . . . . . . . . . . . . . 46  \nBottom view . . . . . . . . . . . . . . 47  \nLocating FRUs and CRUs . . . . . . . . . . 47  \nMajor FRUs . . . . . . . . . . . . . . 48  \nLCD FRUs . . . . . . . . . . . . . . 50  \nMiscellaneous parts and other FRUs . . . . 51  \nLooking up FRU information . . . . . . . . . 52  \nChapter 8. FRU replacement  \nnotices ....","cbCaipzfTRL46ENc","https://ap.wps.com/l/cbCaipzfTRL46ENc","pdf",56672822,114,"English","# About this manual\n# Chapter 1. Safety information\n## General safety\n## Electrical safety\n## Safety inspection guide\n## Handling devices that are sensitive to electrostatic discharge\n## Grounding requirements\n## Safety notices (multilingual translations)\n# Chapter 2. Important service information\n## Strategy for replacing FRUs\n## Strategy for replacing a hard disk drive or a solid-state drive\n## Important notice for replacing a system board\n## How to use error message\n## Strategy for replacing FRUs for CTO, special bid model, and standard models\n# Chapter 3. General checkout\n## What to do first\n## Checkout guide\n## Lenovo Solution Center\n## Quick test programs\n## UEFI diagnostic program\n## Bootable diagnostic programs\n## Power system checkout\n# Chapter 4. Related service information\n## Restoring the factory contents by using the product Recovery Disc Set\n## Using the Windows recovery programs on the Windows 8.1 operating system\n## Refreshing your computer\n## Resetting your computer to the factory default settings\n## Creating and using recovery media\n# Chapter 9. Removing or replacing a FRU\n## General guidelines\n## Before servicing the computer","[{\"question\":\"What safety topics does this manual cover before servicing?\",\"answer\":\"It covers general safety, electrical safety, safety inspection guidance, electrostatic discharge handling, grounding requirements, and multilingual safety notices.\"},{\"question\":\"How does the manual guide FRU replacement and service troubleshooting?\",\"answer\":\"It provides strategies for replacing FRUs and specific components, explains how to use error messages, and includes a symptom-to-FRU index with numeric error codes and error message sections.\"},{\"question\":\"What recovery and reset options are described for Windows 8.1?\",\"answer\":\"It explains restoring factory contents with a product Recovery Disc Set, using Windows recovery programs on Windows 8.1, refreshing the computer, resetting to factory defaults, and advanced startup options.\"}]","ThinkPad Yoga 12 - Hardware Maintenance Manual - First Edition (January 2015) | PDF",287]