Read this first
Before you go to the check procedures, be sure to read
this section.
Important Notes
Only certified trained personnel should service
the computer.
Read the entire FRU service procedures before
replacing any FRUs.
Use new nylon-coated screws when you replace
FRUs.
Be extremely careful during write operations such
as copying, saving, or formatting. Drives in the
computer that you are servicing might have been
rearranged or the drive startup sequence might have
been altered. If you select an incorrect drive, data or
programs could be overwritten.
Replace FRUs only for the correct model. When
you replace a FRU, make sure that the model of the
machine and FRU part number are correct by refer-
ring to the FRU parts list.
A FRU should not be replaced because of a
single, unreproducible failure. Single failure can
occur for a variety of reasons that have nothing to do
with a hardware defect, such as: cosmic radiation,
electrostatic discharge, or software error. FRU
replacement should be considered only when a recur-
ring problem exists. In this case, clear the error log
and run the test again. Do not replace FRUs if log
errors do not reappear.
Be careful not to replace a non-defective FRU.
What to do first
The servicer must include the following in the parts
exchange form or parts return form that is attached to the
returned FRU:
1. Name and phone number of servicer
2. Date of service
3. Date when part failed
4. Date of purchase
5. Failure symptoms, error codes appearing on display,
and beep symptoms
6. Procedure index and page number in which failing
FRU was detected
7. Failing FRU name and part number
8. Machine type, model number and serial number
9. Customer's name and address
ThinkPad i Series 1400/1500
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