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2  Troubleshooting Procedures  
2.9  TouchPad Troubleshooting 
2-32 
Tecra A3/S2 Series Maintenance Manual 
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