Troubleshooting Procedures

2.4.3 Procedure 3 Diagnostic Test Program Execution Check

Execute the following tests from the Diagnostic Test Menu. These tests check the system board. Refer to Chapter 3, Tests and Diagnostic, for more information on how to perform these tests.

1.System test

2.Memory test

3.Keyboard test

4.Display test

5.Floppy Disk test

6. Printer test

[It is not supported]

7.Async test

8.Hard Disk test

9.Real Timer test

10.NDP test

11.Expansion test

12.CD-ROM/DVD-ROM test

13.Only One test

14.Wireless LAN test

15.LAN/Modem/Bluetooth/IEEE1394 test

16.Sound test

If an error is detected during these tests, go to Procedure 4.

2.4.4 Procedure 4 Replacement Check

System board may be faulty. Disassemble the computer following the steps described in Chapter 4, Replacement Procedures and replace system board with a new one.

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[CONFIDENTIAL]

PORTEGE M780 Maintenance Manual (960-809)

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Toshiba 960-809 manual Procedure 3 Diagnostic Test Program Execution Check, Procedure 4 Replacement Check