[sdiy] Korg Delta problem

[Dave Brown]

It could be tin corrosion.  It can exhibit itself as temperature sensitivity
and the synth is old enough to have tin issues.  Tin on tin connectors will
eventually fail.  Simply reseat every connector and IC that is in a socket.
The wiping action will give you a new tin surface.  Just make sure you don't
fold a pin under when inserting an IC.  You actually don't have to pull them
all the way out of a socket, but just enough that the new insertion will
clean some tin.

Dave

> -----Original Message-----
> From: Synth-diy [mailto:synth-diy-bounces at synth-diy.org] On Behalf Of
> Jean Bender
> Sent: Monday, June 18, 2018 12:43 PM
> To: john slee
> Cc: Synth-diy at synth-diy.org DIY
> Subject: [sdiy] Korg Delta problem
> 
> Hi !
> i just got a korg delta, but it seems to be a bit tired.
> Once you start it, it works as a charm, no probs, but if you wait one,
> two hours, even if you are outside, with sun or no, the synthetizer
> part stops by itself.
> All four voices shut down, but i still can use the string part.
> 
> It looks a lot to me as a temperature problem, but if i open it,
> nothing seems to be broken or something.
> 
> Where should i look at first ? Would it be a cap problem in the audio path
?
> 
> Any help would be greatly appreciated.
> Thanks !!
> J.
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