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 USB 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 3.

Procedure 2 Connector Check and Cable Check

The LCD module is connected to the system board by an LCD/FL cable. The FL inverter board is also connected to the system board by an LCD/FL cable. The connectors may be disconnected from the system board or may be damaged. Disassemble the computer following the steps described in Chapter 4, Replacement Procedures.

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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TECRA S3 Maintenance Manual (960-532)

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Toshiba S4 manual Troubleshooting Procedures Display Troubleshooting, Procedure 2 Connector Check and Cable Check