Well Larry Do not be in any hurry to respond. My condolences. I will post the results here, otherwise I will forget it. I removed the relay, and cleaned Then, with the voltage of the receiver set to 130V, I connected on the wall, to 133VAC. It works fine, for 10 minutes, using a headphone. Volume around 20%. tuner, aux and phono. So I power it off, and install one speaker (Marantz 87 dB sensitivity) After, I power on in wall (now with 135 ... 136VAC). It runs OK for 3 mnutes, and when i turn up the volume (around 50%), the relay click on, and no soung again. After that, I had no sound. The relay is not activating again. No more sound... MUTE. All capacitors have been replaced, except C6, C7 (main filter) The offset on power amp is 0V The bias voltage L: 28mV R: 15mV Both Bias Adjust VRs are in the minimum position. I found high voltages on PINs 20 and 9 of power amp board. The same voltage that PIN 23 PIN 20: -45VDC PIN: 9:45 VDC PIN 23: -45VDC In the service manual, voltages of PINs 20 and 9 is (-39VDC and 39VDC). And voltage on PIN 23 is -45VDC. Maybe there`s a poblem here. I really tired with this receiver. I have worked a lot on it, for a looong time, more than year...... arrrrhh. but i like it, and I will not give up Regards to you. Sincere condolences.