Lenovo ThinkPad i Series 1800 Hardware Maintenance Manual for ThinkPad A22m (w - Page 3

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Contents Introduction 1 Important service information 1 Strategy for replacing FRUs 1 How to use error messages 2 Diskette compatibility matrix 2 Safety notices: multilingual translations 3 Safety information 14 General safety 14 Electrical safety 15 Safety inspection guide 16 Handling electrostatic discharge-sensitive devices 17 Grounding requirements 18 Laser compliance statement 18 General descriptions 23 Read this first 23 What to do first 23 Related service information 25 Service Web site 25 Product recovery program 25 Passwords 27 Power management 30 Checkout guide 33 Testing the computer 33 Detecting system information with PC-Doctor. . . 35 Power system checkout 35 ThinkPad A22m wireless models 39 Product overview 41 Specifications 41 Status indicators 42 FRU tests 44 Fn key combinations 46 Symptom-to-FRU index 47 Numeric error codes 47 Error messages 50 Beep symptoms 51 No beep symptoms 51 LCD-related symptoms 52 Intermittent problems 52 Undetermined problems 53 FRU replacement notices 54 Screw notices 54 Retaining serial numbers 55 Removing and replacing a FRU 57 1010 Battery pack 58 1020 DIMM 59 1030 Mini PCI adapter 61 1040 Backup battery 63 1050 Hard-disk drive or RF ID adapter . . . . 64 © Copyright IBM Corp. 2001 iii

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Contents
Introduction
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Important service information
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Strategy for replacing FRUs
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How to use error messages
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Diskette compatibility matrix
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Safety notices: multilingual translations
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Safety information
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General safety
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Electrical safety
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Safety inspection guide
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Handling electrostatic discharge-sensitive devices
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Grounding requirements
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Laser compliance statement
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General descriptions
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Read this first
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What to do first
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Related service information
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Service Web site
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Product recovery program
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Passwords
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Power management
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Checkout guide
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Testing the computer
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Detecting system information with PC-Doctor.
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Power system checkout
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ThinkPad A22m wireless models
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Product overview
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Specifications
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Status indicators
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FRU tests
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Fn key combinations
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Symptom-to-FRU index
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Numeric error codes
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Error messages
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Beep symptoms
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No beep symptoms
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LCD-related symptoms
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Intermittent problems
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Undetermined problems
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FRU replacement notices
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Screw notices
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Retaining serial numbers
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Removing and replacing a FRU
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1010 Battery pack
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1020 DIMM
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1030 Mini PCI adapter
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1040 Backup battery
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1050 Hard-disk drive or RF ID adapter
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64
© Copyright IBM Corp. 2001
iii