Can anybody help me identify the problem with my Onkyo A-8250? Instead of ~1.5V on Q517 offset transistor I am getting 50V.
I have replaced: Q511, Q513, Q517 (Was defective), Q515, D507, D509, D513, D515. (Diodes with 1N4148, transistors with exact models)
Also checked C601, 603, 509, 507 (all good), R523, R535, R529, R533, R527, R525, R537 (all good), and the front and back from there transistors. It is illogical to me why I am I getting 50V on Q517. On the other channel it is normal ~1.5V as it should be. With out Q515 i get ~3V, but Ive replaced it 3 times already, and all of them measure correctly. This is measure with the amplifier section transistors removed (as they all go up in flames due to this).
I have replaced: Q511, Q513, Q517 (Was defective), Q515, D507, D509, D513, D515. (Diodes with 1N4148, transistors with exact models)
Also checked C601, 603, 509, 507 (all good), R523, R535, R529, R533, R527, R525, R537 (all good), and the front and back from there transistors. It is illogical to me why I am I getting 50V on Q517. On the other channel it is normal ~1.5V as it should be. With out Q515 i get ~3V, but Ive replaced it 3 times already, and all of them measure correctly. This is measure with the amplifier section transistors removed (as they all go up in flames due to this).
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