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Contents
About this manual
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. iii
Introduction
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. 1
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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. 3
Safety information.
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. 14
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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. 23
Read this first .
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. 23
What to do first
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Related service information .
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. 25
Service web site .
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. 25
Product recovery program
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Passwords .
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Power management .
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Checkout guide
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. 33
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 A20m/p, A21m/p and A22m/p.
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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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. 53
No beep symptoms
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. 53
LCD-related symptoms .
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Intermittent problems .
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Undetermined problems .
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. 55
FRU replacement notices
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Screw notices .
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. 56
Retaining serial numbers.
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Removing and replacing a FRU.
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1010 Battery pack.
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. 60
1020 DIMM
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. 61
1030 Mini PCI adapter
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. 63
© Copyright IBM Corp. 2001
v
Summary of Contents for THINKPAD A20M
Page 4: ...iv ThinkPad A20m p A21m p A22m p...
Page 28: ...Laser compliance statement 22 ThinkPad A20m p A21m p A22m p...
Page 76: ...Removing and replacing a FRU 70 ThinkPad A20m p A21m p A22m p...
Page 78: ...continued Removing and replacing a FRU 72 ThinkPad A20m p A21m p A22m p...
Page 108: ...continued Removing and replacing a FRU 102 ThinkPad A20m p A21m p A22m p...
Page 157: ...Notices ThinkPad A20m p A21m p and A22m p 151...
Page 158: ...Part Number 23P0896 1P P N 23P0896...