2 Troubleshooting 2.4 System Board
2-10 TOSHIBA NB100 Maintenance Manual
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. Sound test
8. LAN test
If an error is detected during these tests, go to Procedure 3.
Procedure 3 Replacement Check
The system board, memory, may be defective. Disassemble the computer following the steps
described in Chapter 4 and replace the system board, memory module with a new one.
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