Toshiba Portege M200 Maintenance Manual page 84

2 Troubleshooting Procedures
Procedure 3 Replacement Check
Check 1 If any of the speaker and internal microphones is not working properly, the part
may be faulty. Replace it with a new one following the step in Chapter 4 If there is
still an error, go to Check 2.
Check 2 The system board may be faulty. Replace it with a new one following the step in
Chapter 4. If there is still an error, perform Check 3.
Check 3 The headphone may be faulty. Replace it with a new one.
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2.12 Sound Troubleshooting
Portege M200 Maintenance Manual (960-457)