Toshiba A20-S259 - Satellite - Pentium 4 2.66 GHz Maintenance Manual page 82

2 Troubleshooting Procedures
16. IEEE1394 test
17. Bluetooth test
If an error is detected during these tests, go to Procedure 4.
Procedure 4 Replacement Check
The system board connectors may be damaged. Disassemble the computer following the steps
described in Chapter 4, Replacement Procedures and perform Check 1.
Check 1 Visually check for the following conditions:
a) Connector housing is cracked or broken.
b) Connector pins are damaged.
If there is damage, go to Check 2
If there is no damage, but an error message still appears, go to Check 2.
Check 2 The system board may be damaged. Replace the system board with a new one.
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2.12 Sound Troubleshooting
Satellite A20 Maintenance Manual (960-444)