POWER NOT STABL, SW ERRNUM 311 **system detects that internal voltage levels from a sensor or power rail fall outside expected limits**, TURNED ON ONCE, SECOND ATTEMPT UNIT POWER SUPPY MAKES REPETATIVE CLICK SOUNDS, THIRD POWER ON ATTEMPT, CLICKING SOUND STOPPED, DISPLAY POWERED ON WITH SAME ERROR CODE (311). REAR MOUNT FOR DISPLAY COVER IS BROKEN OFF. CONDITION: USED, AS IS, PARTS UNIT.
