2.14 Sound Troubleshooting 2 Troubleshooting Procedures
TECRA M3 Maintenance Manual (960-507) 2-55
Procedure 3 Replacement Check
Check 1 If the stereo speakers do not sound properly, the right or left speaker may be
defective or damaged. Replace it with a new one. If the stereo speakers still do not
work properly, go to Check 4.
Check 2 If the headphone does not sound properly, the headphone jack may be defective or
damaged. Replace it with a new one. If the sound function still does not work
properly, go to Check 4.
Check 3 If the microphones do not work properly, the microphone cable may be defective
or damaged. Replace it with a new one. If the microphone still does not work
properly, go to Check 4.
Check 4 The sound board may be defective or damaged. Replace it with a new one. If the
problem still exists, perform Check 5.
Check 5 The system board may be defective or damaged. Replace it with a new one.
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