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1000x Distortion

Nick T said:
Next on the list to change out is the Power Transistors once I find the correct part number to replace them. Do you think that could be the cause?
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I was referring to the Power and Ripple Filter boards (F1246, F1251), not the "power transistors" (by which I assume you are referring to the output transistors?). Sounds like petehall is going to walk you through the diagnosis process. Good luck with it!!
 
petehall347 said:
we need to figure out why the centre voltages are railed .
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So I think I mucked the board up more. I bought a handful of Output Transistors this morning and put them in this evening. Now the distortion is much worse. I replaced the original Transistors and the same distortion was still there.

The voltages on each of the Transistors was still the same and now the signal I'm placing into the Main In will play even after I turn the receiver off.

I haven't been able to open anything up and check to see if I blew any capacitors yet, but the F1180 Board is still looking okay.
 
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