few minutes of operation. The noise is not affected by adjusting any of the controls so the problem must be past those in the circuitry. Would you have any ideas? Thank you. more...
the last time it went into the protect mode, I cannot clear it now. The manual states that the wiring could have a short circuit or the wire is touching the chassis of the vehicle. more...
Sorry but it sounds like a problem with the power supply unit. Look for any 'burnt looking' resistors on the printed circuit board and that should give you a major clue!! more...