Connector And Replacement Check - Toshiba Libretto 100CT User Manual

File No. 960-140
Procedure 2

Connector and Replacement Check

The FL, FL inverter board, LCD module, LCD flat cable and system board are connected to
the display circuits. Any of these components may be damaged. Refer to Chapter 4,
Replacement Procedures, for instructions on how to disassemble the computer and then
perform the following checks:
If the FL does not light, perform Check 4.
If characters are not displayed clearly, perform Check 3.
If some screen functions do not operate properly, perform Check 3.
If the FL remains lit when the display is closed, perform Check4.
Check 1 Replace the LCD flat cable with a new one and test the display again. If the
problem still exists, perform Check 2.
Check 2 Replace the LCD module with a new one and test the display again. If the problem
still exists, perform Check 3..
Check 3 Replace the FL inverter board with a new one and test the display again. If the
problem still exists, perform Check 4.
Check 4 Replace the FL with a new one and test the display again. If the problem still
exists, perform Check 5.
Check 5 The system board may be damaged. Replace the system board with a new one.
1-38