Toshiba R600 S4202 - Portege - Core 2 Duo 1.4 GHz Maintenance Manual page 97

2.10 Modem Troubleshooting U(Not Used) U
Check 2 Modem cable or MDC cable may be faulty. Replace it with a new one. If the
problem still occurs, perform Check 3.
Check 3 MDC may be faulty. Replace it with a new one following the steps in Chapter 4,
Replacement Procedure. If the problem still occurs, perform Check 4.
Check 4 MDC FPC may be faulty. Replace it with a new one following the instructions in
Chapter 4, Replacement Procedures. If the problem still occurs, perform Check 5.
Check 5 System board may be faulty. Replace it with a new one following the instructions
in Chapter 4, Replacement Procedures.
PORTEGE R600 Maintenance Manual (960-709)
2 Troubleshooting Procedures
[CONFIDENTIAL] 2-51