Vintage Synth Repair

I would start in usual way - with power supply, cleaning all  
connectors, reseating IC's in sockets if there are any, changing RAM  
battery, then...

I sold all my PS6 I had in the past, so I forgot about it. But for  
sure not all LED's should be lit.

If you don't have Service Manual, I'm sure it can be easily found on  
the net. Or I can send it to you. There were two different production  
versions of Polysix.

Daniel Forro


On Nov 6, 2011, at 12:31 PM, ericthecat@... wrote:

>
>
> I have had a polysix that I've been wanting to restore or at least  
> repair to a working state again. The power wire has been replaced  
> and I'm not sure its correctly connected, so I guess I'll start  
> there! When I plug the synth in it just hums constantly unless I  
> switch the tape output switch then the hum gets softer. All the  
> lights are on and I'm not sure if this is correct or if a power  
> problem is causing this. The speed knob seems to be working but  
> nothing else as far as sound or knobs. Anybody have any ideas where  
> to start?
> Thanks, TheCat