Toshiba Tecra M2-S519 Maintenance Manual - Page 94

2 Troubleshooting Procedures 2.8 Display Troubleshooting 2.8 Display 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 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 3. Procedure 2 Connector 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. 2-40 TECRA M2 Maintenance Manual (960-468)