Toshiba Satellite L650 Maintenance Manual page 59

2 Troubleshooting
Check 3 The FL may be faulty. Replace it with a new one and return to Procedure
3. 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
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.
instructions in Chapter 4.
2-20
System board
LCD/FL cable
Replace it with a new one following the
Satellite/Satellite Pro/L650/L655
2.8 Display
CPU
Maintenance Manual