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 .
.
.
.
.
.
.
.
.
. 32
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. 2003
iii
Summary of Contents for ThinkPad R40
Page 1: ...IBM Mobile Systems ThinkPad Computer Hardware Maintenance Manual IBM...
Page 6: ...2 ThinkPad R40...
Page 46: ...Checkout guide 42 ThinkPad R40...
Page 88: ...3 Removing and replacing a FRU 84 ThinkPad R40...
Page 93: ...Modem daughter card MDC 3 4 5 continued Removing and replacing a FRU ThinkPad R40 89...
Page 105: ...7 7 Removing and replacing a FRU ThinkPad R40 101...
Page 132: ...5 6 7 8 10 11 12 13 14 9 1 2 3 4 15 16 Locations 128 ThinkPad R40...
Page 160: ...LCD FRUs 1 2 3 5 6 4 Parts list 156 ThinkPad R40...
Page 178: ...IBMR Part Number 92P1332 Printed in U S A 1P P N 92P1332...