This is for an old Dolby Multichannel Audio Decoder, model DP584. No power, and the fuses are fine so I figure its the power supply. Problem is this thing is kinda old, and the original open frame power supply UP0653S-03 isnt made anymore. This seems like a universal part, and there are some that match size wise and most of the specs line up, but never exactly, and the prices vary significantly and I dont know if I'm looking at the right part. Anyone know of a site where I can ask what the appropriate replacement part would be? I dont want to spend a lot on this, so the cheapest compatible part is fine.