Toshiba Satellite A100 Series, Maintenance Manual

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2.16 Cooling Module 2 Troubleshooting
Satellite A100/A105 / TECRA A7 Maintenance Manual 2-29
2.16 Cooling Module
To check if the computer’s cooling module is defective or malfunctioning, follow the
troubleshooting procedures below as instructed.
Procedure 1 Test Program Check
Procedure 2 Connector Check and Replacement Check
Procedure 1 Test Program Check
Execute the Fan On/Off test program available as part of the maintenance test program. This
test program checks the cooling module. Insert the diagnostics bootable CD in the
computer's CD, turn on the computer and run the test. See Chapter 3 for information on how
to perform the test.
If any error is detected by the test, go to Procedure 2.
Procedure 2 Connector Check and Replacement Check
The cooling module is connected to the system board. If the cooling module malfunctions,
there may be a bad connection between the cooling module and the system board or either
might be faulty.
Disassemble the computer following the steps described in Chapter 4 and perform the
following checks:
Check 1 Make sure the cooling module has been firmly connected to the connector
on the system board. Also make sure that the tape is not stuck to any part
of the fan and that the fan is free of fore ign matter.
Cooling module
System board
CPU
If the connector is disconnected, connect it firmly to the system board and
return to Procedure 1. If the tape is stuck to any part of the fan, stick it back
to the specified point. If a foreign matter is found in the fan, remove it and
then return to Procedure 1. If there is still an error, perform Check 2.
Check 2 The cooling module may be faulty. Replace it with a new one following the
steps in Chapter 4. If the cooling module is still not functioning properly,
perform Check 3.
Check 3 The memory may be defective. Replace the memory module with a new
one following the steps described in Chapter 4. If the problem persist
,
perform Check 4.
Check 4 The CPU may be faulty. Disassemble the computer following the steps
described in Chapter 4 and replace the CPU with a new one.