2 Troubleshooting Procedures

2.8 Display Troubleshooting

2.8Display Troubleshooting

This section describes how to determine if the computer’s display is functioning properly. Start with Procedure 1 and continue with the other procedures as instructed.

Procedure 1: Diagnostic Test Program Execution Check

Procedure 2: Connector Check and Cable Check

Procedure 3: Replacement Check

Procedure 1 Diagnostic Test Program Execution Check

The Display Test program is stored on the computer’s Diagnostics disk. This program checks the display controller on the system board. Insert the Diagnostics disk in the computer’s floppy disk drive, turn on the computer and run the test. Refer to Chapter 3, Tests and Diagnostics for details. If an error is detected, go to Procedure 2.

Procedure 2 Connector Check and Cable Check

Check 1 Make sure the LCD cable is securely connected to CN5601 on the system board.

If the connection is loose, reconnect firmly and restart the computer. If there is still an error, go to Procedure 3.

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PORTEGE R500 Maintenance Manual (960-634)

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Toshiba r500 manual Troubleshooting Procedures Display Troubleshooting, Procedure 2 Connector Check and Cable Check