Hi,
Several years ago I bought a 9090DB on E-Bay. It was in reasonably good condition and worked OK except for noisy controls and dirty contacts on the protection board relay. I used Deoxit on everything and that addressed all the issues. I was going to re-cap it at that time but decided to pass until a later date as everything seemed to work and sound fine. Well, today I decided it was that later date, so I pulled the 9090DB from it's setup and temporarily put another receiver in its place. I'm in the process of pulling the various boards out being slightly annoyed by the amount of point to point wiring that is soldered in at each end, but as it is, it will be OK. I'm taking advantage of the excellent work others have done at identifying replacement caps. I am considering redoing some of the connections with pins and sockets. I figure I can get high quality sockets so that signal path should not be an issue. I'm also thinking about replacing the flex circuit connections at the rear with audio coax and header on the board side. I'll think about this more as I disassemble things. Looks like it should be an interesting project to do.
Joel
Several years ago I bought a 9090DB on E-Bay. It was in reasonably good condition and worked OK except for noisy controls and dirty contacts on the protection board relay. I used Deoxit on everything and that addressed all the issues. I was going to re-cap it at that time but decided to pass until a later date as everything seemed to work and sound fine. Well, today I decided it was that later date, so I pulled the 9090DB from it's setup and temporarily put another receiver in its place. I'm in the process of pulling the various boards out being slightly annoyed by the amount of point to point wiring that is soldered in at each end, but as it is, it will be OK. I'm taking advantage of the excellent work others have done at identifying replacement caps. I am considering redoing some of the connections with pins and sockets. I figure I can get high quality sockets so that signal path should not be an issue. I'm also thinking about replacing the flex circuit connections at the rear with audio coax and header on the board side. I'll think about this more as I disassemble things. Looks like it should be an interesting project to do.
Joel