While attempting the last test, I had 2 shorts; 1 at the jumper wire, and a very loud short at IC1. There's now 2 sets of burn marks, so I think I've caused too much damage to be worth the parts to fix it. I really appreciate your help and time.
Hello, just wondered if I could "Piggyback" onto this thread, as I have pretty much the exact same issue as the OP, and the same Yamaha receiver.
Mine was playing fine, then suddenly shut off, no error codes or anything, as if it just lost all power. I tried fuse, and nothing, and tried the Reset procedure, main relay would click on and them back off in about .5 seconds.
Then I jumpered the relay across the film cap shown earlier in the thread, in the power supply section, display came on with a code:
DC PROTECT 255H
But nothing else will happen.
Last Edit: Sept 24, 2017 13:48:23 GMT -5 by kevint
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