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2 Troubleshooting 2.13 IEEE 1394 Test
2.13 IEEE 1394 Test(Optional)
To check if the computer’s IEEE 1394 is defective or malfunctioning, follow the
troubleshooting procedures below as instructed.
Procedure 1 Test Program Check
Procedure 2 Connector Check
Procedure 1 Test Program Check
Execute the IEEE 1394 test program available as part of the maintenance test program. This
program checks the IEEE 1394. Insert the Bootable CD into the 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
The IEEE 1394 connector is mounted on the system board. If the IEEE 1394 malfunctions,
the system board or CPU might be faulty.
Disassemble the computer following the steps described in Chapter 4 and perform the
following checks:
Check 1 The system board may be faulty. Replace it with a new one following the
instructions in Chapter 4. If the IEEE 1394 is still not functioning
properly, perform Check 2.
Check 2 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 3.
Check 3 The CPU may be faulty. Disassemble the computer following the steps
described in Chapter 4 and replace the CPU with a new one.
2-24 Satellite M40/M45 TECRA A4 dynabook Vx/4 Maintenance Manual