Vintage Synth Repair

Hi Mu,
Thanks a lot for this.
And yes, I agree: I like to read stuff like this.

Terje Winther


Den 5. mai. 2009 kl. 10.37 skrev Mu:

>
>
> Got a Multiman S laying on the bench for a couple hours. Here's what  
> was wrong, and how it was corrected:
>
> - Lost voices on all C's and E's
> Dead octave dividers (TDA1008/6-Stage Divider). Replaced these and  
> the relevant coupling caps.
>
> - Stuck notes
> Mechanical error. Shaft holding trigger springs mounted too low on  
> some keys. (Probably rearlier "service" - ugly glue job)
>
> - Non triggering brass on some keys
> Replaced leaking electrolytes (10uF + 4u7) on trigger card below  
> each key.
>
> - Non triggering piano on some keys. Other voices triggering as  
> normal.
> Mechanical error. Upper trigger spring not making contact so as to  
> recharge the electrolyte for note onset. Adjusted so as to make good  
> contact on key release.
>
> I write this because I'd like to find more information like this in  
> here myself - Aiming towards a reference on how to get our machines  
> working again, rather than a synth obituary.
>
> Cheers,
>
> Mu.
>
>
> 

Terje Winther
terje.winther@...
http://www.wintherstormer.no/