Possible Causes
| Possible Causes |
|---|
| ANC MICROPHONE |
| ANC MICROPHONE (+/-) CIRCUIT OPEN |
| AMPLIFIER |
Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .
| Possible Causes |
|---|
| ANC MICROPHONE |
| ANC MICROPHONE (+/-) CIRCUIT OPEN |
| AMPLIFIER |
Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .