Korg DW8000, Mono/Poly, MS-20...

My poly 61 just started acting up.
I sold it to a friend 14 years ago and it sat in their
closet.  They just gave it back to me 6 months ago.
It worked fine after a key contact cleaning.
I don't play it for a month, turn it on and suddenly I
have unpredictable "portamento" on about the lower
third of the keyboard.
Still has original battery.  I don't know if that
could explain it.
Any ideas?
thanks

--- fx maletras <fx_maletras@...> wrote:

> Hia
> 
> Gosh, I would be curious to hear your Poly6!!! 
> 
> I have a Poly61 that does funny things too, but not
> as
> funny as "patch modulation". 
> 
> If the pacthes are unstable, may be the memory is
> responsible. 
> The fact that your problem appears after physically
> moving the synth could point to a dry solder joint
> nearby the memory chip.
> Dry joints is a current problem with machines that
> old.
> 
> Have a look for greyish looking joints, you never
> know, it could really be as simple as resoldering a
> few.
> 
> Good luck!
> 
> 
> 
> --- Mike <tubmyk2@...> a \ufffdcrit :
> 
> 
> 
> ---------------------------------
> Hello.
> 
> I own a Polysix that is having a problem, that I
> first
> thought was related to the battery.  I 
> basically replaced the battery and the diode like
> explained on Old Crow's synth page, 
> except I did not replace the IC chip because the
> battery did not seem to have leaked onto 
> the board and therefore I found no real reason to go
> through more of a hack job.  
> 
> The problem began after just moving the synth from
> one
> room to the next (i know, it 
> sounds stupid), and all my patches began to modulate
> after roughly two seconds if you 
> kept the keys pressed down.  After changing out the
> battery I had to reload the patches 
> back into the synth and half of them don't work, and
> the ones that do still modulate.  I 
> already got insight from Scott @ Old Crow, but I
> wanted to know if anyone else had 
> experienced a simliar problem, forcing them to do a
> battery replacement and find out it 
> did not solve the problem..
> 
> Let me know, I'm curious to see responses, if any.
> 
> Mike T
> 
> 
>   
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