Toshiba A10 manual LAN Troubleshooting Troubleshooting Procedures

2.12 LAN Troubleshooting 2 Troubleshooting Procedures

2.12 LAN Troubleshooting

To check if the computer’s LAN is defective or malfunctioning, follow the troubleshooting procedures below as instructed.

Procedure 1 Diagnostic Test Program Execution Check

Procedure 2 Connector Check and Replacement Check

Procedure 1 Diagnostic Test Program Execution Check

Execute the LAN Test in the Diagnostic Program. (Sound/LAN/Modem test Program subtest 03 LAN test) 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 Connector Check and Replacement Check

The LAN function is mounted on the system board. The modem/LAN jack is connected to the system board by the cable. If the LAN malfunctions, the connection is bad or the system board might be faulty.

Disassemble the computer following the steps described in Chapter 4 and perform the following checks:

Check 1 Check if the LAN jack is connected firmly to the connector PJ4100 on the system board.

LAN Jack PJ4100 System Board

If it is loose or disconnected, connect it firmly and return to Procedure 1. If there is still an error, perform Check 2.

Check 2 The LAN jack may be defective. Replace the LAN jack with a new one. If the problem persist, perform Check 3.

Check 3 The system board may be faulty. Disassemble the computer following the steps described in Chapter 4.

Satellite A10/TECRA A1/Satellite Pro A10 Maintenance Manual (960-445) 2-53