Re: Pye PJ500 blown resistor.
Both ends of the output transformer secondary are connected to the speaker. One end is , as you identified, connected to earth.
The other (non-earthy) side shows an additional connection which runs off the top of circuit diagram extract that i can see. I suspect this additional connection of being a negative feedback loop and an easy check would be to temporarily snip it and see if the squack clears.
|