Toshiba Satellite U300 Series Maintenance Manual page 92

Troubleshooting Procedures
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 CN31(Santa Rosa) or CN29(NAPA). And also, MDC is connected
to system and LAN board by modem cable. 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 U300 and Satellite Pro U300 Maintenance Manual
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