Korg Poly800/EX800 Users

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!!
>