2 Troubleshooting Procedures 2.4 System Board Troubleshooting
2-36 [CONFIDENTIAL] QOSMIO F20 Maintenance Manual (960-526)
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. Hard Disk test
7. Real Timer test
8. NDP test
9. Expansion test
10. CD-ROM/DVD-ROM test
11. Wireless LAN test
12. LAN/Modem/Bluetooth/IEEE1394 test
13. Sound test
14. Only one test
If an error is detected during these tests, go to Procedure 4.
Procedure 4 Replacement Check
The system board may be damaged. Disassemble the computer following the steps described
in Chapter 4, Replacement Procedures and replace the system board with a new one.
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