Toshiba 960-809 User Manual
Troubleshooting Procedures
2-48
[CONFIDENTIAL]
PORTEGE M780 Maintenance Manual (960-809)
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 System board may be faulty. Replace it with a new one following the instruction in
Chapter 4, Replacement Procedure.