Possible Causes
| Possible Causes |
|---|
| (X712) MICROPHONE 1 IN (+) CIRCUIT SHORTED TO GROUND |
| (X712) MICROPHONE 1 IN (+) CIRCUIT OPEN |
| (X712) MICROPHONE 1 IN (+) CIRCUITS SHORTED TO VOLTAGE |
| (X792) MICROPHONE IN (-) CIRCUIT SHORTED TO GROUND |
| (X792) MICROPHONE IN (-) CIRCUIT OPEN |
| (X792) MICROPHONE IN (-) CIRCUITS SHORTED TO VOLTAGE |
| HANDS FREE MICROPHONE |
| RADIO |