2 Troubleshooting Procedures

2.10 Modem Troubleshooting

Procedure 2 Connector Check and Replacement Check

The Modem is installed as a Modem Daughter Card (MDC). If the modem malfunctions, there may be a bad connection between the MDC and the system board or their connectors might be damaged.

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

Check 1 Make sure the MDC is firmly connected to CN3010 on the system board, and the modem/jack cable is connected to CN3011 on the system board and the connector of the MDC.

If any of the connector is disconnected, connect it firmly and repeat Procedure 1. If the modem is still not functioning properly, perform Check 2.

Check 2 The modem jack or modem jack cable may be defective or damaged. Replace it with a new one following the steps in Chapter 4, Replacement Procedures. If the modem is still not functioning properly, perform Check 3.

Check 3 The MDC may be defective or damaged. Replace it with a new one following the steps in Chapter 4, Replacement Procedures. If the modem is still not functioning properly, perform Check 4.

Check 4 The system board may be defective or damaged. Replace it with a new one following the steps in Chapter 4, Replacement Procedures.

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TECRA S3 Maintenance Manual (960-532)

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Toshiba S4 manual Troubleshooting Procedures Modem Troubleshooting