Toshiba Satellite U300 Maintenance Manual page 96

Troubleshooting Procedures
Check 2
Check 3
Check 4
Check 6
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Modem cable may be faulty. Replace it with a new one. If the problem still occurs,
perform Check 3.
MDC may be faulty. Replace it with a new one following the steps in Chapter 4. If
the problem still occurs, perform Check 4.
Cable between MDC and system board may be faulty. Replace it with a new one
following the instructions in Chapter 4. If the problem still occurs, perform Check
5.
System board may be faulty. Replace it with a new one following the instruction in
Chapter 4.
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Satellite U300 and Satellite Pro U300 Maintenance Manual