Modem Troubleshooting; Procedure 1 Diagnostic Test Program Execution Check; Procedure 2 Connector Check And Replacement Check - Toshiba Satellite L640D Maintenance Manual

Chapter 2 Troubleshooting Procedures

2.22 Modem Troubleshooting

To check if modem is malfunctioning or not, follow the troubleshooting procedures below as
instructed.
Procedure 1:
Procedure 2:
Procedure 1 Diagnostic Test Program Execution Check
Execute Modem test in the LAN/Modem/Bluetooth/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, perform Procedure 2.
Procedure 2 Connector Check and Replacement Check
MDC (Modem Daughter Card) is used as the modem for this computer. MDC is connected to
system board by connector CN10/CN27. If modem malfunctions, the connection of cable,
board and module may be defective. Otherwise, they may be faulty.
Disassemble the computer following the steps described in Chapter 4 and perform the
following checks:
Check 1 Make sure the following connections are firmly connected.
If any connector is disconnected, connect it firmly and return to Procedure 1. If the
problem still occurs, perform Check 2.
Satellite L600D/L640D/L645D, Satellite Pro L600D/Pro L640D/Pro L645D Maintenance Manual (960-Q08)
Diagnostic Test Program Execution Check
Connector Check and Replacement Check