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2.5 3.5” FDD Troubleshooting 2 Troubleshooting Procedures
Procedure 3 Connector Check and Replacement Check
The USB connector may be disconnected from the system board. Check visually that the
connector is connected firmly.
Check 1 Make sure the following cables and connectors are firmly connected to the each
board.
USB FDD
(FLGCP PCB)
CN4620
CN4622
System board
PJ4611
(FLKCS PCB)
PJ4610
CN4611
CN4612
*
FLGSR PCB、FLGCP PCB or FLKCS
PCB is exclusive choice PCB.
They are never mounted in the
same board at the same time.
System board
CN4610
USB FDD
(FLGSR PCB)
CN4630
CN4632
USB harness
If any of the connections are loose, reconnect firmly and repeat Procedure 2. If
there is still an error, go to Check 2.
Check 2 The USB FDD may be defective or damaged. Replace it with a new one. If the
FDD is still not functioning properly, perform Check 3.
Check 3 The FLGSR board, FLGCP board or FLGCS board connected to the system
board may be defective or damaged. Replace it with a new one. If the FDD is
still not functioning properly, perform Check 4.
Check 4 Replace the system board with a new one following the steps in Chapter 4,
Replacement Procedures.
Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 2-31