Sansui 9090

[Diamond Dave]

I have a Sansui 9090 that has output at Speaker B and C, but no A....

Do I have anyone that has cured this defect? Besides replacing the expensive Selection Switch? I can jump the audio from B to A, so it must be the switch...just looking for suggestions from this Awesome Forum!!!

 

[EastPoint]

Are you trying to use all three at once, or separately?

 

[Diamond Dave]

No, individually...I can jump the signal from one of the 'Other' speakers and get a signal. It's almost certain it's the Speaker Selector Switch. That is expensive and hard to find. I was looking for anyone who had this and cured it...more than likely the switch. Thanks for the question. Is it possible to run all three with an 8 ohm Load on each?

 

[Tozco]

I'm not sure of exactly how you jumped the switch, but have you eliminated the speaker relay as the culprit?

 

[Fairlane]

Have you cleaned all the controls with contact cleaner and work the switch back and forth a bunch of times?

 

[avionic]

I'm not sure of exactly how you jumped the switch, but have you eliminated the speaker relay as the culprit?

The 9090 only has one protect relay.. A,B & C go through the same relay and same relay contacts. The fact that B & C works and A doesn't eliminates the relay as the culprit.

 

[avionic]

Besides replacing the expensive Selection Switch?

Have you tried a healthy dose of Deox-it on that wafer switch S01 ?

 

[avionic]

Is it possible to run all three with an 8 ohm Load on each?

Not in its current configuration.. A only , B only , C only , A+C or A+B are your options. No A+B+C option.