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!!
>