IBM R50 Series Hardware Maintenance Manual

Also see for ThinkPad Dock II: Manual User guide Manual User guide Manual 

Contents

ContentsAbout this manual . . . . . . . . . . . 1Introduction . . . . . . . . . . . . . 3Important service information . . . . . . . . . 3Strategy for replacing FRUs . . . . . . . . 3How to use error messages . . . . . . . . 4Diskette compatibility matrix . . . . . . . . . 4Safety notices: multilingual translations . . . . . . 4Safety information . . . . . . . . . . . . 16General safety . . . . . . . . . . . . 16Electrical safety . . . . . . . . . . . 17Safety inspection guide . . . . . . . . . 19Handling devices that are sensitive to electrostaticdischarge . . . . . . . . . . . . 20Grounding requirements . . . . . . . . . 21Laser compliance statement . . . . . . . . . 22General descriptions . . . . . . . . . . 25Read this first . . . . . . . . . . . . . 25What to do first . . . . . . . . . . . 25Related service information . . . . . . . . . 27Service web site . . . . . . . . . . . 27Restoring the pre-installed system . . . . . . 27Passwords . . . . . . . . . . . . . 28Power management . . . . . . . . . . 32Checkout guide . . . . . . . . . . . . 34Testing the computer . . . . . . . . . . 34Detecting system information with PC-Doctor . . . 37Power system checkout . . . . . . . . . 37ThinkPad R50/R50p and R51 Series . . . . . . 41Product overview . . . . . . . . . . . . 43Specifications . . . . . . . . . . . . 43Status indicators . . . . . . . . . . . 48FRU tests . . . . . . . . . . . . . 50Fn key combinations . . . . . . . . . . 52Symptom-to-FRU index . . . . . . . . . . 54Numeric error codes . . . . . . . . . . 54Error messages . . . . . . . . . . . 59Beep symptoms . . . . . . . . . . . 60No-beep symptoms . . . . . . . . . . 60LCD-related symptoms . . . . . . . . . 61Intermittent problems . . . . . . . . . . 62Undetermined problems . . . . . . . . . 62FRU replacement notices . . . . . . . . . 63Screw notices . . . . . . . . . . . . 63Retaining serial numbers . . . . . . . . . 64Removing and replacing a FRU . . . . . . . . 671010 Battery pack . . . . . . . . . . . 681020 Ultrabay Enhanced device . . . . . . 69© Copyright IBM Corp. 2004 iii