hi daniel i have repaired many yams and korgs and
have had to do this on queit a few keybeds
as knowing from experience and seen first hand that
it can happen
not saying this is his problem but that it can
happen
im a repair tech and repair all makes and models of
synths from new to old
was an ensoniq repair tech for 15 years in
uk
and i do up grades to the older synths and samplers
bringing them up to later using tech
i have a massive cleint bass and my biggest jobs
are doing vfd replacements for synth with back lights and synths with out back
lights but who want a bright display as in most older yam synths and
casio
lots of emu synths and the sp12 and 1200 drum
machines
----- Original Message -----From: Daniel ForróSent: Saturday, May 12, 2012 11:14 AMSubject: Re: [vintagesynthrepair] Korg X5 keys not working
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 itremove 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 budjust check every spring contact to make sure none are bent if they are gently bend them back to there correct position----- Original Message -----From: ;jammieSent: Saturday, May 12, 2012 9:39 AMSubject: Re: [vintagesynthrepair] Korg X5 keys not workingthey are yamaha keybedstheres a metal contact sping that when you press moves down onto a contactsome times they get a little bent and when pressed they dont make contacttheres also a big return spring that returns the key to its upright positionthese metal contact strips can also snap offif this is the case then you have to replace the contact boardthis means desoldering an octave of the contact boad unscrewingand removing then you have to solder in the new contact boardall parts are available from yamahaas korg will not support you device any longer and dont stock parts for keyboards after 6 yearshopefully its just the bent contact spring which needs adjusting back to it original positionyou can see this by looking at the other contact springs----- Original Message -----From: paxetySent: Saturday, May 12, 2012 1:33 AMSubject: [vintagesynthrepair] Korg X5 keys not workingI 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