Korg Forums

tim8oland · Joined: 15 Dec 2009 Posts: 4

Hi there...I have a Pro-X that I bought a while back. When I bought it, I noticed that the scroll wheel was a bit touchy, but now it has gotten to the point that it scrolls at random when i turn the wheel left or right...it goes both up or down randomly. How do I fix this or how much would something like this cost to repair?? I appreciate any and all input from you guys. Thanks.

-Tim

tim8oland · Joined: 15 Dec 2009 Posts: 4

OH YEAH...I don't have a manual so that is why I'm lost w/ using this machine to its full capabilities. Does anyone have a .pdf format of the manual?? I could really use it for sequencing.

friedgreenwombats · Joined: 04 Nov 2010 Posts: 1

Hi tim,
my scroll wheel is doing the same thing on my Triton Studio 88.
I haven't been able to fix it either and it's quite frustrating.

Sucks you haven't had any responses...
_________________
there are some things only gruving can fix...

dayve · Joined: 09 Nov 2010 Posts: 5 Location: CA

Same problem here... i cant even use it, otherwise it messes all my key tunes up

X-Trade · Posted: Tue Nov 09, 2010 9:53 am Post subject:

Besides cleaning out the mechanism with some compressed air, the only thing I can reccommend - as with all hardware issues - is to either take it to Korg or to somewhere else (generally a music shop) that repairs keyboards.

You can download the manual online. KorgUKSupport have all past product's manuals:
http://www.korguksupport.co.uk/
_________________
Current Gear: Kronos 61, RADIAS-R, Volca Bass, ESX-1, microKorg, MS2000B, R3, Kaossilator Pro +, MiniKP, AX3000B, nanoKontrol, nanoPad MK II,
Other Mfgrs: Moog Sub37, Roland Boutique JX03, Novation MiniNova, Akai APC40, MOTU MIDI TimePiece 2, ART Pro VLA, Focusrite Saffire Pro 40.
Past Gear: Korg Karma, TR61, Poly800, EA-1, ER-1, ES-1, Kawai K1, Novation ReMote37SL, Boss GT-6B
Software: NI Komplete 10 Ultimate, Arturia V Collection, Ableton Live 9. Apple OSX El Capitan on 15" MacBook Pro

ricardomir · Joined: 10 Nov 2023 Posts: 1

This is a very old original post but hopefully this solution can still help people out there. It turns out that fixing a scroll wheel which becomes erratic or unresponsive is not that hard at all. I just did it on my Korg Triton, and it fixed the scroll wheel completely. Here's what to do:

1. Using a small bread and butter knife or the flat end of a screwdriver, gently insert it between the scroll wheel and its surrounding casing. Start prying it out. Do not use excessive force or it could break off. Pry up on one end, and then move around the circumference gently prying until the wheel pops out.
2. You will notice that only the metallic tip of the knob is accessible without disassembling the whole keyboard. The good news is that the contact between the rotating part of the knob and the stationary part is within reach. What you need is rubbing alcohol to clean out the internal contacts of this knob, and some cotton.
3. Saturate the small wad of cotton with alcohol. Then press the cotton around the knob stub while rotating this stub clockwise and counter-clockwise. This is important so that the alcohol can seep in between the rotating and static parts of the knob.
4. Now continue rotating this knob vigorously in both directions. You should notice that the erratic behaviour quickly gets resolved.
5. Finish cleaning all around and inside the knob well. Allow it to dry for a few minutes and then carefully replace the plastic wheel by aligning it with the metal knob and gently pressing it back into place.

This worked for me. Hopefully it works for you. If it doesn't, there may be actual damage to the knob and it will need to be repaired by a qualified technician.