Nothing but PHONO will work right on it and old-school turntables would require it to preamplify the tiny current produced by a Phono cartridge. A 'generic' turntable and a 'generic' HK AVR? 'PHONO' is the only designated connection on an audio device that is literal and exclusive. Also disconnect the speakers and test, if the protect is off then check for short on the speakers. If not there can be issues in the mother board, maybe the protect circuit by itself is shutting off due to a faulty bias, maybe a leak in any voltage/current sensing circuit. You need to confirm and replace the specific stages or outputs. Faulty capacitors in these circuits also can cause similar issues and needs close observation. Sometimes this can be a noise like a HUM or HISS before the protect works. Even a fault in the preamp stages that drives in high current into the output can shut the Amplifier. The fault can be your output drivers- the MOSFETS/IC's fitted for both the channels, Use a meter after disconnecting to check for short in the drivers.ĭisconnect the positive and negative voltages to the output and see if the protect changes. It is possible that the amplifier had encountered a fault with a higher current drain which had triggered it to a protection fault condition. Try this first, if you could, could you take a picture of the windings at the back end of the generator, this will confirm for me what leads you have present. If you have voltage on the power output and not on the exciter, then the exciter is shot and your avr might not be. Through the following links, you can skip to the menu or to the main text in this page. If your generator has these exciter winding, you should check if you have voltage there with the 9 volts applied to the rotor. The two to the power output are voltage reference only. And, we haven't tried the manual transmission yet. Please see this post Click Here Please ask questions if you have them!! Kubota Transmission Question. This is the exciter winding and this supplies power to the avr for the rotating field.
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