What was found
CONTROL UNIT DOES NOT WORK. REPLACED FUSE F1. REPAIRED. FOUND VOLUME TO HAVE DEAD SPOTS WHEN TURNING VOLUME KNOB. REPLACED ON/OFF PONTENTIOMETER R1/S5. REPAIRED. BENCH CHECK GOOD.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
CONTROL UNIT DOES NOT WORK. REPLACED FUSE F1. REPAIRED. FOUND VOLUME TO HAVE DEAD SPOTS WHEN TURNING VOLUME KNOB. REPLACED ON/OFF PONTENTIOMETER R1/S5. REPAIRED. BENCH CHECK GOOD.