I am new to this board and it seems I should find the answer I am seeking here.
I am replacing the power board of a 70's era EMC GEMINI mixer/pa amp whose power board is fried. The two mixer preamp and reverb boards seem ok.
I have a DENON power board 1u2909 bought on fleebay eons ago,which research shows comes from a POA 8200 or POA8300 a/v amp. Wiring is straightforward and space is available.
Question: what voltage is that board looking for? I realise that the bridge and filter caps are on the DENON board, so it's just a matter of getting the correct transformer. A schematic would be nice for figuring out the speaker relays control scheme.