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IBM
X21
Manuale Utente
IBM X21 Manuale Utente
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141
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Contents
Chapter 1. Introduction .
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. 1
Important service information .
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FRU replacement strategy
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Hard disk drive replacement strategy
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. 2
How to use error messages .
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How to read POST error messages .
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Safety notices: multilingual translations .
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Safety information.
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. 12
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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Laser radiation.
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Chapter 2. General descriptions .
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. 21
Read this first .
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. 21
Related service information .
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Service Web site .
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. 24
Product recovery program
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Using Recovery CD .
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Creating a Recovery Repair diskette .
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. 26
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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Chapter 3. ThinkPad X20, X21, X22, X23, X24 .
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Product overview .
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Specifications .
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Status indicators .
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. 45
Fn key combinations .
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. 47
Symptom-to-FRU index .
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. 48
Numeric error codes .
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. 48
Error messages
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. 50
Beep symptoms
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. 51
LCD-related symptoms .
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. 52
Intermittent problems .
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. 52
Undetermined problems .
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. 53
FRU replacement notices
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. 54
Screw notices .
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. 54
Retaining serial numbers.
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. 55
Removing and replacing a FRU.
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. 57
1010 Battery pack.
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. 58
1020 DIMM
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. 59
1030 Backup battery .
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. 60
1040 Hard disk drive .
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. 61
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