Lenovo ThinkPad R40 ThinkPad R40, R40e - Hardware Maintenance Manual (March 20 - Page 3
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Contents About this manual 1 Introduction 3 Important service information 3 Strategy for replacing FRUs 3 How to use error messages 4 Diskette compatibility matrix 4 Safety notices: multilingual translations 5 Safety information 17 General safety 17 Electrical safety 18 Safety inspection guide 19 Handling devices that are sensitive to electrostatic discharge 20 Grounding requirements 21 Laser compliance statement 22 General descriptions 25 Read this first 25 What to do first 25 Related service information 28 Service web site 28 Restoring the preloaded system 28 Passwords 30 Power management 33 Checkout guide 36 Testing the computer 36 Detecting system information with PC-Doctor. . . 38 Power system checkout 39 ThinkPad R40 43 Product overview 45 Specifications 45 Status indicators 48 FRU tests 50 Fn key combinations 52 Symptom-to-FRU index 53 Numeric error codes 53 Error messages 56 Beep symptoms 57 No-beep symptoms 57 LCD-related symptoms 58 Intermittent problems 59 Undetermined problems 59 FRU replacement notices 60 Screw notices 60 Retaining serial numbers 61 Removing and replacing a FRU 63 1010 Battery pack 64 1020 Ultrabay Plus device 65 © Copyright IBM Corp. 2004 iii