Troubleshooting Procedures
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.
[CONFIDENTIAL] | PORTEGE M780 Maintenance Manual |
