Toshiba PRO L645 User Manual

To check if modem is malfunctioning or not, follow the troubleshooting procedures below as 
instructed. 

Procedure 1:   Diagnostic Test Program Execution Check 

Procedure 2:   Connector Check and Replacement Check 

 te

gram. Refer to Chapter 

MDC (Modem Daughter Card) is used as the modem for this computer. MDC is connected to 

tion of cable, board and 

Execute Modem

st in the LAN/Modem/Bluetooth/IEEE1394 test pro

3, Tests and Diagnostics for more information on how to perform the test program. 

If any error is detected, perform Procedure 2.  

system board by connector CN10. If modem malfunctions, the connec
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. 

f the 

If any connector is disconnected, connect it firmly and return to Procedure 1. I
problem still occurs, perform Check 2.