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742 Troubleshooting Procedures
Satellite A350D/A355D, SATEGO A350D, EQUIUM A350D Series Maintenance Manual
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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 2-21 outlines the process. Start with Procedure 1
and continue with the other procedures as instructed.
Procedure 1: Diagnostic test
Procedure 2: Connector and replacement check
Procedure 1 Diagnostic test
Run the functioning Program on Windows model, which will display the MIC test result.
If tests and diagnostics result abnormal go to Procedure 2. If an error is not located, the MIC
module functioning is properly.
Procedure 2 Connector and replacement check
The MIC line or system board may be disconnected or damaged. Disassemble the computer
following the steps described in Chapter 4, Replacement Procedures, and perform the
following checks.
Check 1 Make sure that the MIC line is securely slotted into the system board. If the
problem remains, go to Check 2.
Check 2 The MIC line may be damaged. Replace it with a new one following the
instructions in Chapter 4. If the problem still exists, perform Check 3.
Check 3 The system board may be damaged. Replace it with a new one following the
instructions in Chapter 4.
2.23 Finger printer troubleshooting