Procedure 4 Test Program Check; Procedure 5 Replacement Check - Toshiba Satellite M20 Maintenance Manual

2 Troubleshooting

Procedure 4 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. Printer test (i.e LPT Port test)
6. COM Port test
7. Hard Disk test
8. Mouse test
9. IrDA test
10. SD Card test
11. CD-ROM/DVD-ROM test
12. Sound test
13. LAN test
If an error is detected during these tests, go to Procedure 5

Procedure 5 Replacement Check

The system board, memory, or CPU may be defective. Disassemble the computer following
the steps described in Chapter 4 and replace the system board, memory module or CPU with
a new one.
2-18
2.4 System Board
Satellite M20 Maintenance Manual