Toshiba Portege R500 Maintenance Manual - Page 89
Procedure 3, Replacement Check
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2.8 Display Troubleshooting 2 Troubleshooting Procedures 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. PORTEGE R500 Maintenance Manual (960-634) [CONFIDENTIAL] 2-43