Hermit418
Active Member
Found a Sansui C-2102 Pre-Amp yesterday while visiting one of my usual haunts. I brought it home and noticed a low output with issues of both channels cutting in and out. Did a little research on it to refresh my memory on this higher line component.
Downloaded the service manual from HiFi engine as well.
Found a thread about another owner de-soldering all of the relays and cleaning each one with De-Oxit and some "brown shop paper", I surmised he meant burnishing the contacts of the relays to isure solid connection.
I removed the covers of the relays and gave them each a blast of De-Oxit, allowing each to sit and dry before coveringthem again and trying again to get signals through the various inputs. I noticed an improvement although the issues were still present.
My immediate question is what else besides cleaning the relays again canI do to return this otherwise fine piece of gear back to full operation? I would rather not have to take the relays out and have to re-install them if I canavoid doing that.
I would really like to use this Pre-Amp with some BGW Mono Blocks that I finished restoring a few months ago. This pre along with the 150 WPC (avg @ 8 Ohms) should allow me to have a solid power source plus a very clean signal chain for several of my Dahlquist and Klipsch speakers. I am hoping it will result in allowing me to finally use a decent MC cart in my Denon 47f TT.
Any suggestions to correct the issues and allow me to use this setup? I understand the relays can be cleaned and that should fix this problem but again I want to avoid having to pull the relays and have to reinstall them if at all possible. Everything else seems to be fully functional.
Cheers
Hermit
Downloaded the service manual from HiFi engine as well.
Found a thread about another owner de-soldering all of the relays and cleaning each one with De-Oxit and some "brown shop paper", I surmised he meant burnishing the contacts of the relays to isure solid connection.
I removed the covers of the relays and gave them each a blast of De-Oxit, allowing each to sit and dry before coveringthem again and trying again to get signals through the various inputs. I noticed an improvement although the issues were still present.
My immediate question is what else besides cleaning the relays again canI do to return this otherwise fine piece of gear back to full operation? I would rather not have to take the relays out and have to re-install them if I canavoid doing that.
I would really like to use this Pre-Amp with some BGW Mono Blocks that I finished restoring a few months ago. This pre along with the 150 WPC (avg @ 8 Ohms) should allow me to have a solid power source plus a very clean signal chain for several of my Dahlquist and Klipsch speakers. I am hoping it will result in allowing me to finally use a decent MC cart in my Denon 47f TT.
Any suggestions to correct the issues and allow me to use this setup? I understand the relays can be cleaned and that should fix this problem but again I want to avoid having to pull the relays and have to reinstall them if at all possible. Everything else seems to be fully functional.
Cheers
Hermit