Toshiba L600D Benutzerhandbuch

LCD module, LCD cable are connected to display circuits. Any of these components may be 
faulty. Refer to Chapter 4, Replacement Procedures, for instructions on how to disassemble 
the computer and then perform the following checks: 

If characters or graphics on the internal display are not displayed clearly, perform 
Check 1. 

If some screen functions do not operate properly, perform Check 2. 

If LED backlight remains lit when the display is closed, perform Check 3. 

Check1 

LCD cable may be faulty. Replace LCD cable with a new one following the 
instructions in Chapter 4, Replacement Procedure and test the display again. If the 
problem still occurs, perform Check 2. 

Check 2 

LCD module may be faulty. Replace LCD module with a new one following the 
instructions in Chapter 4, Replacement Procedure and test the display again.  If the 
problem still occurs, perform Check 3. 

Check 3 

System board may be faulty. Replace it with a new one following the instructions 
in Chapter 4, Replacement Procedure.