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2.14 IEEE 1394 Troubleshooting 2 Troubleshooting Procedures
Satellite M40X/M45X/Satellite Pro M40X/EQUIUM M40X Series Maintenance Manual [CONFIDENTIAL] 2-35
To determine if the computer’s IEEE 1394 system is functioning properly, perform the following
procedures. Figure 2-14 outlines the process. Start with Procedure 1 and continue with the other
procedures as instructed.
Procedure 1: IEEE 1394 device check
Procedure 2: Diagnostic check
Procedure 3: Connection and replacement check
Procedure 1 IEEE 1394 device check
Connect an IEEE 1394 device to the computer’s IEEE 1394 port, then boot the computer for
Windows XP. The computer should automatically detect the 1394 device. Check whether the
device can transmit data to the computer.
If the device is able to communicate with the computer, the problem may be intermittent or
connections may be faulty. Go to Procedure 2.
If communication is impaired, there may be a faulty connection. Go to Procedure 3.
Procedure 2 Diagnostic check
Run the Diagnostic Program, which will automatically execute the IEEE 1394 port test for
transmission. Refer to Chapter 3, Tests and Diagnostics for more information on how to run the
program.
If an error is located, go to Procedure 3. If an error does not occur, the 1394 port is functioning
properly.
Procedure 3 Connection and replacement check
The transmission cable may be damaged or the connections may be loose. Perform Check 1:
Check 1 Make sure the transmission cable is firmly plugged into both the IEEE 1394-
compatible device and the IEEE 1394 port of the computer. If the cable is connected
correctly, go to Check 2.
Check 2 Make sure the IEEE 1394 port is firmly secured to the system board of the computer.
If the malfunction persists, go to Check 3.
Check 3 The transmission cable may be damaged. Replace with a good cable. If the
malfunction persists, go to Check 4
Check 4 The system board may be damaged. Replace it with a new one following the
instructions in Chapter 4.