I am coming to find that Marantz is like a Lay's potato chip. Bought this 2325 knowing that "it lights up, but no sound", figured it would be another interesting project. Well 1/2 of dial & indicator lamps actually work and removing the cover revealed a missing dial cord shield, a few missing screws, and the relay cover off rattling around the interior. Inspection of P800 showed signs of the wires to J810 & J811 being removed and soldered back, so some attempt was made to service the board. The original LY2 relay was still in place and I noticed that the contacts which would have fed the right channel were well worn. I suspect the previous owner removed the cover and tried to reposition the contact points to compensate for wear instead of replacing. This board has since been rebuilt (once the old relay was removed I saw signs of possible arcing) Upon power-up the relay closed after normal delay then opened about 15 seconds later. Figured I'd pull the right amp module and power up again, relay closed and stayed that way. Swapped module to left side and relay would not close, so bad module. Preamp is ok. So down to my question, modules were never removed prior to me taking them out, visual inspection shows no burnt components although cap C706's jacket has shrunk. In this scenario what would be the usual suspects to focus on other than the four outputs?