Korg Forums

You do know there is a problem with ALL Oasys's everyone the function button doesn't work !!!

Are you going to replace the buttons by yourself? Isn't it complicated? Is soldering involved?..

Curvebender,

I have not yet opened the O. But if I well remember, when I did check inside the O. 1 month ago, no soldering are required and it should be not too complicated to replace them.
My local dealer did not mention to me special requirement or needs. But as I said before the job is not yet done.....
Did someone on here already repair those buttons? Or Dan do I need particular attention to something that I undervalue?

Thanks Drunky

I received the buttons yesterday and already changed them (I ordered three of them and changed both value up and down so now they are perfectly identical.....as new...).
I confirm no soldering necessary.
You must be very careful to properly take note of every step when disassembling, so to make it easier the reverse operation.
I suggest to take pictures (a portable phone is enough).
What you have to do is open the panel lid (be careful the screen has to be in up position) and begin to unscrew the big left side board not before you assured that all the pot and slider caps are taken off and all the wires are detached from the boards (NOT the plastic white thin tape)
You will find that the board is held by four metal bars. You also have to unscrew the little board on which the vector lever assembly is located.
There's no need to unscrew the Main volume board attached to the vector lever assembly board (but you have to unscrew it from the panel lid).
The big board does not retain the plastic assemblies of the sliders led and pot leds, so you must pay attention.
The lever ssmbly too is not attached to the electronic board, it only has some leading tiny holes in which you have to fit the assembly when it's time to reassembling the whole thing. It is very very important to understand how it is assembled..............
The buttons are very easy to replace.
When reassembling, I suggest to do the big board first taking care about the red leds placement (they have to perfectly fit their places).
Hope all this can help.

Thanks for the details, Tony.

Q1: Is it OK now? The problem was the deformation of the lower end of the buttons? I guess the buttons get somehow shortened and can't touch the microswitches well enough. That's why we have to press them extremely hard?

Q2: You have received 3 buttons but replaced 2, so you have an extra new button left. If it's makes sense, could you send a picture showing the difference between a new button and an old one?

I'm still having this problem. Eventually all buttons work at the moment, but few of them only with hard pressure, and it annoys me when I want to work fluently. I'm also worried about not to damage the buttons (or the circuit board) when repeatedly pressing them hard.

My first problem was not the pushbutton, but the under placed electronic switch.
I successfully tried to make it work again by spraying a dry contact cleaner.
This solved the problem but the cleaner affected the pushbutton which looked melted (first time I experienced such a thing.........)
That's why I had to replace the button.
When new, the buttons have a matt finish which goes away with the use.......they become glossier.
I changed both the pushbuttons because I did not want to have a matt and a gloss one.........perfectionist.......
Everything now works as it should.

Thank you Tony,

I programmed to make the job tommorow and I will follow your suggestions hoping that everything will work as it should do!

Ciao Drunky

Good luck.......or in italic slang "in culo alla balena" (into whale's axxhxxe)

Grazie, Tony! Unfortunately, all I know from this thread that sometimes the most used buttons may be going bad - for me: UP, DOWN, PROGRAM, DISK - and we don't know exactly why. Deformation? Dirty contacts? Software failure? (I don't believe it.)

I have bought my OASYS two years ago brand new. I don't use it too frequently (shame 'cause I love it) or too hard. I think the button problem is probably a rare manufacturing defect. Before going further I will have to take the O apart - I have the skills, and your detailed report - and check what's going on inside. At the moment the problem is obstructing me to use it well. It would be much better to practice and enjoy the unbelievable sound coming from this baby.

I remember this happened with my Triton (and other folk's too). On mine the Menu button (very heavily used, for jumping between pages), just started to become a little soft when clicked and slightly recessed. However it didn't actually stop working (still works to this day) and that instrument is years old now. Did you guys go through this 'phase' prior to your switches giving out ? Or did it just happen. The switches used in the Triton were if I remember correctly rated for tens of thousands of processes, so should have lasted for a while. The Oasys buttons shouldn't be giving out yet I wouldn't have thought.

One of the great details on the Oasys was the two rows of tabs on the touch screen versus using the Menu button on the deck and the corresponding page that appeared on the Triton. Very small thing, but significant improvement in workflow and also life expectancy since the Menu button was taking a lot of clicks.

Daz.

Hi Daz, I know what you mean, I also felt softer and recessing buttons on some other boards or devices but not on a Korg yet.

Maybe I have it on the OASYS now but almost unrecognizable if any. I'm not sure, I will check tomorrow (it's midnight here, I am browsing this great forum with my iPhone in the bed ). If the buttons are recessing then it can be a defect of their plastic material.

Today my PROGRAM button has gone.

So I checked what's inside.

I think the problem is not the deformation of the buttons. As Sharp and Mike (UK tech support) said it seems to be the - hopefully temporary - death of the most often used tactile switches.

So maybe I will carefully try to use the high pressure air first - directly on the switches. If it doesn't work I'll take the O to the service center, or I'll get new switches and replace them myself.

I have a similar problem except I have three pads that stopped working. Unlike the button problems described in this thread, I don't use the pads very often so it's not an overuse situation. Strangely, the pads seems to have stopped working at the same time. I've not yet opened it up to see what might be causing this.

I have the same problem but with Sequencer Star/Stop button.

I have repaired my OASYS. Check this out.

Akos Janca wrote:I have repaired my OASYS. Check this out.

Impressive! I'm glad you figured it out.

But I am N E V E R going to do that myself...