2.8 Display Troubleshooting | 2 Troubleshooting Procedures |
Procedure 3 Replacement Check
Units related to display are a FL inverter board, Display module, System board, LCD/FL cable and display ON/OFF sensor. Any of the components may be damaged. Disassemble the computer following the steps described in Chapter 4, Replacement Procedures, then perform the following checks:
(1)If the FL does not light, perform Check 1.
(2)If characters are displayed on the internal display but the display is not normal, perform Check 2.
(3)If the FL lights even if the display cover is closed, perform Check 5.
Check 1 Open the display and check the display on/off sensor. If the sensor works properly, display switch may be damaged. Replace the switch with a new one. If there is still an error, go to Check 2.
Check 2 The LCD/FL cable may be damaged. Replace the cable with a new one. If there is still an error, go to Check 3.
Check 3 The LCD module may be damaged. Replace it with a new one and repeat Procedure 1. If there is still an error, go to Check 4.
Check 4 The FL inverter board may be damaged. Replace it with a new one and repeat Procedure 1. If there is still an error, go to Check 5.
Check 5 The system board may be damaged. Replace it with a new one following the instructions in Chapter 4, Replacement Procedures.
TECRA S3 Maintenance Manual | [CONFIDENTIAL] |
