Vintage Synth Repair

I'm not quite sure but don't think X5 had keybed with metal contacts,  
only few Korg and Yamaha 5 octave instruments had such. And with metal  
contacts on such keyboard can't be any mechanical problem even when  
instrument was used heavily.

Much probably there are standard rubber contact stripes. Just open it  
and clean contacts, it's possible there's some dust under rubber  
contact strip. In the case some rubber button is broken, you have to  
get new contact stripe and change it.

Daniel Forro


On May 12, 2012, at 5:39 PM, jammie wrote:

>
>
> they are yamaha keybeds
>
> theres a metal contact sping that when you press moves down onto a  
> contact
>
> some times they get a little bent and when pressed they dont make  
> contact
>
> theres also a big return spring that returns the key to its upright  
> position
>
> these metal contact strips can also snap off
>
> if this is the case then you have to replace the contact board
>
> this means desoldering an octave of the contact boad unscrewing
>
> and removing then you have to solder in the new contact board
>
> all parts are available from yamaha
>
> as korg will not support you device any longer and dont stock parts  
> for keyboards after  6 years
>
> hopefully its just the bent contact spring which needs adjusting  
> back to it original position
>
> you can see this by looking at the other contact springs