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After putting up with sticking keys I decided to finally tackling the offending key lubricant buildup problem.

I successfully removed the keyboard from the deck and removed the Yamaha actuator assembly and set it aside. Completely stripped down the keyframe and cleaned it with a toothbrush and windex. Relubed the key areas and key guides with a small amount of lube and reassembled unit with new underfelt. The repetition is excellent!

There are ways slightly modify the touch response to make the touch "hotter" than factory setting.

Now my Korg 01WFD is a capable controller with better touch and control than the Korg LE or TR series.

I love it!

IT plays like it is 100% showroom new! IT feels like a new Oasis 76 note. as a matter of fact this Korg/Yamaha keyboard is identical to the TRINITY and Oasis non weighted board.

Now time to replace the backlight!

Did the same thing last fall and was very pleased with results. I also replaced the backlight while I had it apart. It's like a brand new 01/W!

What lube did you use?

Balbs

yoshi88 wrote:
There are ways slightly modify the touch response to make the touch "hotter" than factory setting.

how, specifically?

Quite simply... the keyboard's felt strips that act as a rest for the spring loaded keys, eventually shrink and become distorted over time. The keydip rail or aftertouch rail, has a strip of felt that correspondingly, shrinks from both age and wear. Grooves form in these felts and the keystroke increases beyond the original factory keystroke depth.

Note: That actuator assembly or triggering mechanism is VERY SENSITIVE and must be handled very carefully. The tiny leaf springs , if mishandled can easily be bent out of shape.

When new, the depressed key will force the actuator or trigger assembly to send data to the board to fire and release the note at ideal settings with ideal timing. An aged keyboard will display a distorted or huge keystroke, with late note engagment or late triggering of notes and note release times. The end result is a slower, less response touch response and aftertouch OR a "slower" action!

Modifiying the touch requires REDUCING & restoring the keystroke to their standard factory original values. The note repetition will be greatly improved earlier in the stroke. Then end result is a faster ultra response action.

Modifying the keystroke beyond the standard settings can be also be done to make the action even faster or "Hotter" by reducing the stroke a slight amount. Perhaps shaving off another millimeter of dip is all you need, as the tirggering effect is achieved earlier in the stroke. Pianists love a faster action with extremely fast repetition, depending on the music/style played.

ON a well maintained acoustic piano the average keydip will range from 10.5mm , +/- 0.5mm

Measuring your O1WFD, you may find your touch slightly deeper than this. So if you are displeased with its touch response, proceed further otherwise leave it alone.

Carefully removing the felt from these surfaces requires patience.

When the keyboard is dissassembled and cleaned and re-lubed with Yamaha lube, or a trace of white lithium on keyboard balance points, will restore speed and smoothness.

IF you are hesitant to tackle this job, have your technician do it for you!

Your Korg O1W keyboard will be as good as new!!! IT was originally well built and they never skimped on materials when they released the 01W after the major success of the M1! After all, it does have a premium Yamaha keyboard. Well worth keeping.

As a technician and a player myself,I own 3 of these lovely 01W/FD boards. JUst love those sounds....they are timeless... despite the newer Korg sounds in my studio, some of those "O" series sounds still sound fresh and I'll never part with them.
ote="Gargamel314"]

yoshi88 wrote:
There are ways slightly modify the touch response to make the touch "hotter" than factory setting.

how, specifically?[/quote]

All sounds good...

Thanks for the info..

Mine is within the normal specs, with just an occ...( ) note sticking...

I find it to be a matter of playing... If used reasonably often... it never sticks...

Good stuff from the prev. posters... What a great keyboard... even today...

ellll (John)

part of me wants to try this...

the other part of me says "don't endanger the 01/W!!! leave it be!"

If you remove this felt strip then surely the aftertouch pressure will not work correctly,this feltstrip creates resistance with the Key as its pressed over the aftertouch sensor as you press harder or softer,removing this then there will only be the Aftertouch on or off no way to gradually bring it in as there will be no resistance to your pressure,the felt acts as a kind of buffer to your pressure

I've serviced a lot of Korg keybeds over the years and never seen any Feltstrips that have shrunk,yes they have Indents where the keys have been pressed,but they would only shrink if in contact with Water or moisture

AFAIK The key responce worked off the Rubber contacts under the middle of the key,because if you remove the after touch sensor under the felt strip the touch responce on the keys still works which is telling me that the felt is only as a buffer and nothing to do with the Keys other than for AT Purposes there are no other connections with the felt other than the AT sensor and the Key only touches the Felt once its reached its full travel of play which is why its a kind of rest,if your going to shave it then the Aftertouch responce won't be as sensitive and you need to increase the pressure to register it

Thanks Kontrol49, for the addition..Z!!

Regards, John (elll)

I just repaired the aftertouch on my korg t2. I saw the indents on the felt so I carefully pried up the entire aftertouch strip with a small screw driver and a butter knife being careful not to bend it. After I pried it up I placed it back but about 4mm to one side. This lets the keys hit offset from the original indent. I could see where it was from the outline of the glue. The glue was still sticky so it stuck again. I tried to fluff the felt with a toothbrush but some may come loose so be careful. As I read in another post the key is the 2 white trim knobs on the board the aftertouch cable plugs into. They can only be rotated 270 degrees. I marked where they were with a pen. I stood the keyboard on the back on the stand and played preset a38 mono solo which I had edited so after touch opened the filter max, and added vibrato max so there would be no mistaking the effect. I turned the knob farthest into the middle of the keyboard, that adjusted sensitivity. Turn it too far and aftertouch is max without even touching it. By pressing the keys I got it set as light as possible. I turned the other trim but it didn't have much effect. I think it effects how much pressure is needed for maximum effect. It works perfectly now as it was way too stiff. A week earlier I added a new backlight from an ebay company for $38 called telesisgear.com. Its a big job but I took pictures of every thing as I went and kept the screws in containers. Now its totally back to the original condition.

The concept of putting additional felt on top of the old felt makes the keys too high up after being pressed and it may not even trigger.

Good stuff, dhmartens....

I for one am pleased to take it into account for my own possible use..

My Regards!!

ellll (John)