Vintage Synth Repair

Cool thanks guys! I did the mod today....makes a huge
difference to the filters...they were a bit feeble
before..now they sound great and wide open..

The problem with strings attack thumping...well
there's a pot you adjust called Strings VCA CVR to
minimise it in the service manual but I have to say it
doesn't do that much, it was in the optimal postion
anyway. I did the same adjustment to the polysynth
section and it did  improve the thumping in that
section and quieten it down.

So what cause the thumping then?

Phil.

 
--- Malte Rogacki <gacki@...> wrote:

> http://www.till.com/arptech/pdf/4075.pdf
> 
> should get you started; the schematic contains the
> description which
> resistors to change.
> 
> -- 
> Malte Rogacki gacki@...
>
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> "Don't forget to TURN ON THE SYNTHESIZER. Often this
> is the reason why you
>  get no sound out of it." (ARP 2600 Owner's Manual)
>
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> 



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