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Use the following procedure as a guide for computer prob-
lems.
Notes:
1. The diagnostic tests are intended to test only IBM
products. Non-IBM products, prototype cards, or mod-
ified options can give false errors and invalid system
responses.
2. Some test items require tools as shown below:
Audio Wrap cable (P/N: 66G5180)
Eraseable 2HD diskette
Parallel Wrap plug (P/N: 72X8546)
Parallel test cable (P/N: 05K2580)
Serial Wrap plug (P/N: 72X8546)
Screwdriver Kit (P/N: 95F3598)
Screwdriver Kit (P/N: 05K4693)
Torque Screwdriver (P/N: 05K4695)
5mm Socket Wrench (P/N: 05K4694)
PCMCIA: PC test card (P/N: 35G4703)
CD-ROM: Any data and audio CDs
ThinkPad i Series 1400 Diagnostics Diskette
(P/N: 01K4841)
ThinkPad i Series 1400 Utility Diskette (P/N:
01K4842)
1. Obtain the failing symptoms in as much detail as pos-
sible.
2. Verify the symptoms by attempting to recreate the
failure by running the diagnostic test or by repeating
the same operation.
3. Use the following table with the verified symptom to
determine which page to go to. Search the symptoms
column and find the description that best matches
your symptom; then go to the page shown in the "Go
to" column.
Symptoms (Verified) Go to
Power failure. (The
power-on indicator does not
go on or stay on.)
“Power Systems Check” on
page 25, then use table in
“Power-Related Symptoms”
on page 42.
POST does not complete.
No beeps or error
codes/messages are indi-
cated.
“Symptom-to-FRU Index” on
page 36, then use table in
“No Beep Symptoms” on
page 38.
POST detected an error and
displayed numeric error
code with error message.
“Symptom-to-FRU Index” on
page 36.
24 ThinkPad i Series 1400 HMM