Vintage Synth Repair

Hi, this is a vintage casio keyboard/guitar controller. All the keys 
plays if played hard but I lose sound on some with a lighter touch. 
I just think it needs cleaning. Do I use a contact cleaner on this 
and if so can someone guide me through the process?

Thanks ivorys

>
> Message: 1
>    Date: Wed, 30 Apr 2003 06:13:17 -0000
>    From: "ivorys88a440" <ivorythimble@...>
> Subject: Need a fix for a casio az-1 keytar
>
> Hi, this is a vintage casio keyboard/guitar controller. All the keys
> plays if played hard but I lose sound on some with a lighter touch.
> I just think it needs cleaning. Do I use a contact cleaner on this
> and if so can someone guide me through the process?
>
> Thanks ivorys

don't know about the az1, but i did this on a dx100 awhile ago. i used 99% isopropyl
alcohol and q-tips and cleaned the little rubber contact nubs as well as a long
strip of conductive-looking material that lay over them.

shayne