Toshiba M10 manual Troubleshooting Procedures Modem Troubleshooting

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 the MDC, 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 system board PJ2017 and PJ2018, and the RJ-45/RJ-11 Jack is firmly connected to system board PJ124.

JP3

MDC

JP1

PJ2017

System board JP124

PJ2018

RJ-45/ RJ-11 Jacks

Modem cable

If any connectors are disconnected, connect them firmly and repeat Procedure 1. If the Modem is still not functioning properly, perform Check 2.

Check 2 The RJ-45/RJ-11 jacks 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 or the modem cable may be defective or damaged. Replace them with new ones 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 the System Board with a new one following the steps in Chapter 4, Replacement Procedures.

2-46 Satellite Pro M10 Series Maintenance Manual (960-431)