Troubleshooting Procedures
2-44
PORTEGE R830 Satellite R830 Series Maintenance Manual (960-880) [CONFIDENTIAL]
Procedure 3
Replacement Check
The LCD module and system board are connected to display circuits. Any of these
components may be damaged. Refer to Chapter 4,
Replacement Procedures.
Check 1 Replace the LCD cable with a new one following the instructions in Chapter 4,
Replacement Procedures
and test the display again. If the problem still exists,
perform Check 2.
Check 2 Replace the LCD module with a new one following the instructions in Chapter 4,
Replacement Procedures
and test the display again. If the problem still exists,
perform Check 3
Check 3 The display controller on the system board may be damaged. Replace the system
board with a new one following the instructions in Chapter 4,
Replacement
Procedures
.