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Subject: Re: Kork Ex-800

From: "Erik Hines" <sablerock@...>
Date: 2007-01-08

I agree, and give you full permission to post the details wherever
they would be helpful. Pictures are probably necessary for beginners
as well, unfortunately the pics I have are from a cell phone, but
still might help...


Erik

--- In korgpolyex@yahoogroups.com, "korgpolyex800"
<korgpolyex800@...> wrote:
>
> Hi Erik,
>
> I really think we should post your directions onto a web site
> somewhere since fixing those buttons is probably a number one
> maintenance issue for many Poly and EX owners.
>
> I could put a page together on my MKIII blog. I might call it the
> maintenance and repair page.
>
> With your permission of course.
>
> Mike.
>
>
> --- In korgpolyex@yahoogroups.com, "Erik Hines" <sablerock@> wrote:
> >
> > Just some info for EX owners: put down your solder guns, The
buttons
> > on this puppy can be refurbished easily! With the help I got from
you
> > guys on button replacement, I went in for 'surgery'. After
removing
> > the top board, and closely looking at the buttons, I noticed they
are
> > a simple 5 part assembly that can be taken apart and cleaned! My
> > buttons are working like new again (and no pesky solder burns)!!
Once
> > you remove the top board and remove the 2 cables, look closely at
the
> > buttons underside. There are 2 black 'clips' that attach the
button
> > face to the actual switch. Carefully and slightly wedge a small
> > flathead screwdriver at the bottom corner edge of the clips to
> > release it from the tab and remove the button face. Next, you
want to
> > carefully use a pair of small tech pliers to 'pinch' close the
white
> > botton shaft that is held to the switch by two small tabs at the
top
> > and bottom of the switch (be careful here, you can easily lose
the
> > internal contact inside the switch, I recommend working on a
clean
> > table or in a clean room) Once that is removed, you should see
the
> > copper side of the internal contact, I had to tip the board
upside
> > down to remove the contact, put in a safe place.. Next, get some
> > alcohol, and about 10 q-tips. Roll the q-tip between your figers
so
> > that it will fit inside the hole in the switch where the contact
was,
> > dip in alcohol and insert into the hole, rotating the q-tip to
remove
> > debris. Next, use the other end of the q-tip (and alcohol) to
clean
> > BOTH sides of the internal contact you removed, clean well, as
this
> > is the part with the most debris. Replace the contact into the
hole
> > (copper side up), replace the white button shaft (tabs top and
> > bottom) and finnaly the button face..Voila!! A brand new
> > (refurbished) button... Do the buttons one at a time, or else
your
> > asking for trouble losing the contacts..Should takE about AN HOUR
TO
> > DO ALL 15!!
> >
>