Vintage Synth Repair

Hello everyone,

I recently purchased a red Roland SH-101 and upon receiving it, everything work fantastic.  Then after a couple of days with it powered off, I turned it on and instantly it was all over the place with regards to tuning.  I read up on the internet that it could be a power switch problem.  I massaged the power switch without turning it off and sure enough tuning was being manipulated by the power switch movement.

As a result I clean the power switch from the outside and then turned it on about 100 times with the power cord detached.  This did seem to toughen up the switch a bit and when I moved it, the switch no longer affected the tuning, however, the SH-101 will not pop back into it's original setting.  It's still out of tune.

Sooo, does this mean that when the power switch kicks the Roland SH-101 out of tune, that you have to open the unit and make adjustments to re-tune the Sh-101 again?  OR, should the SH-101 have kicked back into tune automatically?

It looks like I'll have to tune the SH-101 again and this would make sense given the power switch messed things up.  If I stabilized the power switch then it should be ok until I order a replacement.  Otherwise, I may have a different problem.

I can't tell from comments here if the power switch fixes the tuning when working properly or it you have to tune the SH-101 all over again each time the power switch messes with the tuning.

Thanks for any insight!

Jim