Toshiba 50CT User Guide - Page 60
Display Troubleshooting, Troubleshooting Procedures, problem still exists, go to Check 4.
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2.9 Display Troubleshooting 2 Troubleshooting Procedures Check 2 Replace the LCD module with a new one and test the display again. If the problem still exists, go to Check 3. Check 3 Replace the FL inverter board with a new one and test the display again. If the problem still exists, go to Check 4. Check 4 Replace the FL with a new one and test the display again. If the problem still exists, go to Check 5. Check 5 The system board may be damaged. Replace the system board with a new one. 2-26 Libretto 50CT/70CT Maintenance Manual
2.9
Display Troubleshooting
2
Troubleshooting Procedures
2-26
Libretto 50CT/70CT Maintenance Manual
Check 2
Replace the LCD module with a new one and test the display again. If the problem
still exists, go to Check 3.
Check 3
Replace the FL inverter board with a new one and test the display again. If the
problem still exists, go to Check 4.
Check 4
Replace the FL with a new one and test the display again. If the problem still
exists, go to Check 5.
Check 5
The system board may be damaged. Replace the system board with a new one.