Vintage Synth Repair

Again - in the case of metal contacts there's no reason why some keys  
would be bent and some not. Much probably it's dirty contact under  
rubber contact stripe, or dust there, or brokem rubber contact (the  
last case is rare but can happen with old rubber, or extensive key hit).

Daniel Forro


On May 12, 2012, at 5:49 PM, jammie wrote:

>
>
> its easy to see and you dont have to remove any keys to do it
>
> remove the keybed and turn it upside down you can see all the  
> contact springs just check for dirt and fluff you can clean the  
> contacts with iso alcohol and a contont wool bud
>
> just check every spring contact to make sure none are  bent if they  
> are gently bend them back to there correct position
>
>
> ----- Original Message -----
> From: jammie
> To: vintagesynthrepair@yahoogroups.com
> Sent: Saturday, May 12, 2012 9:39 AM
> Subject: Re: [vintagesynthrepair] Korg X5 keys not working
>
>
> 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
> ----- Original Message -----
> From: paxety
> To: vintagesynthrepair@yahoogroups.com
> Sent: Saturday, May 12, 2012 1:33 AM
> Subject: [vintagesynthrepair] Korg X5 keys not working
>
>
> I have a Korg X5 bought new in 1995 or 6 - after sitting in a closet  
> for a few years, a few of the keys no longer play. I connected it to  
> a computer, and all of the notes trigger through midi, so the  
> problem is probably in the key contacts.
>
> Does anyone know anything about what kind of contacts are in there?  
> Know who made the keyboards? Are they maybe Fatar units with the  
> common double bubble key contacts, or something else?
>
> I can't seem to find a service manual and the owner's manual is no  
> help.
>
> Thanks,
> John
>
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