Toshiba QOSMIO G40 Maintenance Manual page 88

2 Troubleshooting Procedures
Check 2
Check 3
Check 4
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Connect USB FDD to other USB port and check if it works properly. If it does not
work properly, perform Check 3
USB FDD may be faulty. Replace it with a new one. If the problem still occurs,
perform Check 4
System board and Sound/USB Jack board may be faulty. Replace it with a new
one following the steps in Chapter 4, Replacement Procedures.
[CONFIDENTIAL]
2.5 USB FDD Troubleshooting
QOSMIO G40 Maintenance Manual (960-632)