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2 Troubleshooting 2.7 Display
If there is still an error, perform Check 4.
Check 4 The FL inverter board may be faulty. Replace it with a new one and return to
Procedure 3. If there is still an error, perform Check 5.
Check 5 Make sure the LCD/FL cable has been firmly connected to the system board
and LCD module.
FL inverter board
System board
CPU
LCD/FL cable
If the cable is loose or off, reconnect it firmly and return to Procedure 3. If
there is still an error, perform Check 6.
Check 6 The LCD/FL inverter cable may be faulty. Replace it with a new one and
return to Procedure 3. If there is still an error, perform Check 7.
Check 7 The LCD module may be faulty. Replace it with a new one and return to
Procedure 3. If there is still an error, perform Check 8.
Check 8 The System board may be faulty. Replace it with a new one. If there is still an
error, perform Check 9.
Check 9 The memory may be defective. Replace the memory module with a new one
following the steps described in Chapter 4. If the problem persists, perform
Check 10.
Check 10 The CPU may be faulty. Replace it with a new one following the instructions
in Chapter 4.
Satellite/Satellite Pro/C650/C655 Maintenance Manual 2-16