Toshiba PROA660 test and Diagnostics, Tests and Diagnostics

2Troubleshooting Procedures

SatelliteA660/ProA660 Series Maintenance Manual

To determine if the computer’s LAN port is functioning properly, perform the following

procedures. Figure 2-19 outlines the process. Start with Procedure 1 and continue as

instructed.

Procedure 1: Diagnostic check

Procedure 2: Connector and replacement check

Procedure 1 Diagnostic check

Run the

test and Diagnostics

Program, which will automatically execute the LAN Test.

Refer to Chapter 3,

Tests and Diagnostics

for more information on how to run the program.

If an error is located, go to Procedure 2. If an error does not occur, the LAN is functioning

ok.

Procedure 2 Connector and replacement check

The LAN cable and/or system board may be disconnected or damaged. Disassemble the

computer following the steps described in Chapter 4, Replacement Procedures and perform

the following checks.

Check 1 Make sure the LAN cable is firmly connected to the LAN port of the system

board.

If the connection is loose, reconnect firmly and repeat Procedure 2. If there is still

an error, go to Check 2.

Check 2 The LAN cable may be damaged. Replace it with a new one and repeat Procedure

2. If the problem still exists, perform Check 3.

Check 3 The system board may be damaged. Replace it with a new one following the

instructions in Chapter 4.