Introduction
Important service information
Important
Diskette fixes are customer-installable. The diskette
fixes are posted on the IBM support site
(
http://www.pc.ibm.com/support/
).
Advise customers to contact the PC Company
HelpCenter at 800-772-2227 if they need assistance in
obtaining or installing any diskette fixes.
Customers in Canada should call IBM HelpPC at
800-565-3344 for assistance or download information.
The Canadian BBS phone numbers are:
Montreal
514-938-3022
Toronto
905-316-4255
Vancouver 604-664-6464
Winnipeg
204-934-2735
FRU replacement strategy
Before replacing parts
Ensure that all diskette fixes are installed before
replacing any FRUs listed in this manual.
Use the following strategy to prevent unnecessary FRU
replacement and service expense:
If you are instructed to replace a FRU but the
replacement does not correct the problem,
reinstall the original FRU before you continue.
Some computers have both a processor board and a
system board. If you are instructed to replace either
the processor board or the system board, and
replacing one of them does not correct the problem,
reinstall that board, and then replace the other one.
If an adapter or device consists of more than one
FRU, any of the FRUs may be the cause of the error.
Before replacing the adapter or device, remove the
FRUs, one by one, to see if the symptoms change.
Replace only the FRU that changed the symptoms.
Attention
The setup configuration on the computer you are
servicing may have been customized. Running
Automatic Configuration may alter the settings. Note
the current configuration settings (using the View
Configuration option); then, when service has been
completed, verify that those settings are in place.
Copyright IBM Corp. 2000
1
Summary of Contents for ThinkPad T20
Page 1: ...S19K 2331 00 IBM Mobile Systems ThinkPad T20 2647 2648 Hardware Maintenance Manual March 2000 ...
Page 34: ...Checkout guide 30 ThinkPad T20 HMM ...
Page 64: ...Removing and replacing a FRU 6 5 4 4 5 6 7 6 60 ThinkPad T20 HMM ...
Page 88: ...Removing and replacing a FRU 3010 ThinkPad Dock PCI cover 1 1 2 84 ThinkPad T20 HMM ...
Page 92: ...Removing and replacing a FRU The release button works correctly 88 ThinkPad T20 HMM ...
Page 108: ...IBM Part Number 19K2331 Printed in U S A S19K 2331 ðð ...