2.4 System Board Troubleshooting

2 Troubleshooting Procedures

Procedure 4 Diagnostic Test Program Execution Check

Execute the following tests from the Diagnostic Test Menu. Refer to Chapter 3, Tests and Diagnostics, 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.ASYNC test

7.Hard Disk test

8.Real Timer test

9.NDP test

10.Expansion test

11.CD-ROM/DVD-ROM test

12.Wireless LAN test

13.LAN/Modem/Bluetooth/IEEE1394 test

14.Sound test

If an error is detected during these tests, go to Procedure 5.

Procedure 5 Replacement Check

The system board connectors may be disconnected. Disassemble the computer following the steps described in Chapter 4, Replacement Procedures and perform Check 1.

Check 1 Visually check for the following:

a)Cracked or broken connector housing

b)Damaged connector pins

If their connectors are in good condition, but there is still a problem, go to Check 2.

Check 2 The system board may be damaged. Replace the system board with a new one following the steps described in Chapter 4, Replacement Procedures.

TECRA S3 Maintenance Manual (960-532)

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Toshiba S4 System Board Troubleshooting Troubleshooting Procedures, Procedure 4 Diagnostic Test Program Execution Check