Toshiba NB250 Maintenance Manual page 69

2 Troubleshooting Procedures
40
Figure 2.15. MIC troubleshooting process
The MIC line or system board may be the reason of a MIC fault. Either of these two
components may be damaged. To determine if the computer's MIC is functioning properly,
perform the following procedures. Figure 2-15 outlines the process. Start with Procedure 1
and continue with the other procedures as instructed.
Procedure 1: Diagnostic test
NB200 Series Maintenance Manual
40