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

the way to resolve key or voice on this model is to put the  
oscillators in the mono mode by pressing the "unison" switch.
then each time you press a key, you should hear all voices at once.  
then try each key one at a time: any that dont play have faulty key  
contacts.
earlier models had an ongoing problem with faulty keycontacts, they  
KORG  subsequently reissuewed a keybed with gold plated contacts,
if you have the older one you have a projeact ahead of you. you have  
to service each key switch with a contact enhancing product.
Please note spraying any chemical spray at random into the key  
contact area you are courting disaster, ie  use WD40 will ruin it  
good. we use a
product made by CAIG  that is a pen wipe- works okay...the best fix  
is try to find a keybed with the gold contacts and be done with it.
if it is a voice out, return it to the poly mode then play a  
chromatic scale, a dead voice will show up as every 8th note is dead,  
regarding of course
dead keys.
On Oct 24, 2010, at 2:21 PM, Ballini wrote:

> Hi all!
>
> I own a DW-8000, which I recently bought on eBay.
> Unfortunately few keys of the keyboard seem not respond.
> Sometimes, pressing harder (or faster?), they work. It just on few  
> keys.
> This is actually quite random, so I do not know yet whether with is  
> due to a missing voice (is that possible?), or it's a problem in  
> few key contacts.
>
> Do you know how I could better check this, and how I can clean the  
> keys of the keyboard?
>
> Thanks!
> Cheers,
> Marco
> s/
>

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