2 Troubleshooting

2.4 System Board

Procedure 2 Test Program Check

The maintenance test program contains several programs for diagnosing the system board and CPU. Execute the following test programs using the procedures described in Chapter 3.

1.System test

2.Memory test

3.Keyboard test

4.Display test

5.Hard Disk test

6.Mouse test

7.SD Card/Memory stick test

8.ODD test

9.Sound test

10.LAN test

If an error is detected during these tests, go to Procedure 3.

Procedure 3 Replacement Check

The system board, memory, or CPU may be defective. Disassemble the computer following the steps described in Chapter 4 and replace the system board, memory module or CPU with a new one.

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Satellite M40/M45 TECRA A4 dynabook Vx/4 Maintenance Manual

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Toshiba Satellite, M40 manual Troubleshooting System Board, Procedure 2 Test Program Check