[sdiy] Repairing Key Contacts (OB-8)

[Grant Richter]

Cleaning both sides of the Poly6 key contacts with isopropyl alcohol and
then lightly burnishing off the oxidized layer of the carbon impregnated
rubber with 600 grain wet-dry paper works well. Clean the carbon dust off
the contact after burnishing. You can tell the oxidized layer from
unoxidized because the oxidized rubber is shiny and hard and fresh rubber
has a dull finish and is soft.

This also works for non-J-wire Pro-Ones and TV remotes.

> From: "Anderson, Robert O" <RobertOAnderson at eaton.com>
> Reply-To: owner-synth-diy at dropmix.xs4all.nl
> Date: Fri, 20 Jul 2001 14:26:52 -0400
> To: "'Synth-DIY'" <synth-diy at dropmix.xs4all.nl>
> Subject: RE: [sdiy] Repairing Key Contacts (OB-8)
> 
>> I am amazed that the repair kit was not able to fix this problem.
> 
> I fixed a Korg Polysix once by glueing pieces of silver foil over the carbon
> contacts on the rubber posts.  I had tried other methods without success but
> finally found that the silver foil worked.
> Regards, Bob A.
> 
>