Lenovo ThinkPad X41 2525 Hardware Maintenance Manual

Also see for 1866 - ThinkPad X41 Tablet: Hardware Maintenance Manual Specifications Deployment guide Manual Deployment guide

Contents

ContentsAbout this manual . . . . . . . . . . . 1Introduction . . . . . . . . . . . . . 3Important service information . . . . . . . . . 3Strategy for replacing FRUs . . . . . . . . . 3Strategy for replacing a hard disk drive . . . . . 4How to use error messages . . . . . . . . 4Strategy for replacing FRUs for CTO, CMV, and GAV 4Product definition . . . . . . . . . . . 4FRU identification for CTO, CMV, and GAV products 5Important information about replacing RoHS compliantFRUs . . . . . . . . . . . . . . . 7Diskette compatibility matrix . . . . . . . . . 8Safety notices: multilingual translations . . . . . . 8Safety information . . . . . . . . . . . . 20General safety . . . . . . . . . . . . 20Electrical safety . . . . . . . . . . . 21Safety inspection guide . . . . . . . . . 23Handling devices that are sensitive to electrostaticdischarge . . . . . . . . . . . . 24Grounding requirements . . . . . . . . . 25Laser compliance statement . . . . . . . . . 26General descriptions . . . . . . . . . . 29Read this first . . . . . . . . . . . . . 29What to do first . . . . . . . . . . . 29Related service information . . . . . . . . . 31Service Web site . . . . . . . . . . . 31Restoring the preloaded system . . . . . . 31Recovering the hard disk to original contents . . . 34Passwords . . . . . . . . . . . . . 37Power management . . . . . . . . . . 39Checkout guide . . . . . . . . . . . . 42Testing the computer . . . . . . . . . . 42Detecting system information with PC-Doctor . . . 45Power system checkout . . . . . . . . . 45ThinkPad X41 . . . . . . . . . . . . . 49Product overview . . . . . . . . . . . . 51Specifications . . . . . . . . . . . . 51Status indicators for X41 . . . . . . . . . 53FRU tests . . . . . . . . . . . . . 55Fn key combinations . . . . . . . . . . 57Symptom-to-FRU index . . . . . . . . . . 59Numeric error codes . . . . . . . . . . 59Error messages . . . . . . . . . . . 67Beep symptoms . . . . . . . . . . . 69No-beep symptoms . . . . . . . . . . 69LCD-related symptoms . . . . . . . . . 70Intermittent problems . . . . . . . . . . 71© Lenovo 2005. Portions © IBM Corp. 2005. iii