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2.4 System board Troubleshooting 2 Troubleshooting
PORTEGE R100 Maintenance Manual (960-440) 2-27
Procedure 3 Diagnostic Test Program Execution Check
Execute the following tests from the Diagnostic Test Menu. These tests check the System
board and I/O unit. 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. ASYNC test
7. Hard Disk test
8. Real Timer test
9. NDP test
10. Expansion test
11. Sound/LAN/Modem test
If an error is detected during these tests, go to Procedure 4.
Procedure 4 Replacement Check
I/O units or System board may be damaged. Replace the I/O units or disassemble the
computer following the steps described in Chapter 4 and replace the System board with a new
one.