Lan Troubleshooting - Toshiba PORTÉGÉ A600 Maintenance Manual

2 Troubleshooting Procedures

2.11 LAN Troubleshooting

To check if the computer's LAN is malfunctioning or not, follow the troubleshooting
procedures below as instructed.
Procedure 1
Execute LAN test in the LAN/Modem/Bluettoth/IEEE1394 test program. Refer to Chapter 3,
Tests and Diagnostics for more information on how to perform the test program.
If any error is detected by the test, go to Procedure 2.
Procedure 2
LAN cable is connected to system board. If LAN malfunctions, the connection of the cable
and board may be defective. Otherwise, they may be faulty.
Check 1
Check 2
Check 3
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Procedure 1: Diagnostic Test Program Execution Check
Procedure 2: Connector Check and Replacement Check
Diagnostic Test Program Execution Check
Connector Check and Replacement Check
Make sure LAN cable is firmly connected to the LAN jack on the system board. If
the problem still occurs, perform Check 2.
LAN cable may be faulty. Replace it with a new one. If the problem still occurs,
perform Check 3.
System board may be faulty. Replace it with a new one following the instruction
in Chapter 4, Replacement Procedure.
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2.11 LAN Troubleshooting
PORTEGE A600 Maintenance Manual (960-710)