Akos Janca wrote:I have repaired my OASYS. Check this out.
Akos, you're my new hero! Thank you SO MUCH for sharing this!!!
I'll have to open my O next week to change the pitchbend (yeah, it finally arrived.. after just 8 months of wait ) and I'll try repairing a couple of buttons that aren't working as well as they should be
you are really a MASTER. I changed my 2 UP / DOWN buttons but for my skill it was very difficult. What for you was easy (remove all the boards - re-assemble the joystick vector) for me was not so simple.
So my personal suggestion is that if you are not a little bit used to electronic components and if you want to change some buttons, be helped by a friend with some experience.
That's a fantastic OASYS repair blog - thanks! (I've copied and pasted it into a word document for the long term!!). Delighted your OASYS is in full helth again.
Thank you all!
I bought the switches from the local repair centre in the city - because I didn't want to bother with taking the OASYS there for usual repair. (I have good relation with the Hungarian distributors, they kindly asked the service to help me.)
Akos Janca wrote:Thank you all!
I bought the switches from the local repair centre in the city - because I didn't want to bother with taking the OASYS there for usual repair. (I have good relation with the Hungarian distributors, they kindly asked the service to help me.)
Do you mean your local Korg repair centre?
Could you provide details on how to acquire them - can these be purchased from generic electronics suppliers and if so what's their part number / reference number and cost?
Thanks for your info (I should have read the entire thread!) - but alas I'm still not totally clear(!) - which switches did you actually purchase - are they the ones for the X3 / T3 / OW1: equivalent to Korg part #37507500?
Akos - well done, brilliant work & excellent documentation!
Sorry to be so late to the party, but here's my 2c. I have had the same problem with my T1 previously, but I brought mine to the local service center for Korg (and other brands).
When the tech finally got it apart, more than a month later, the verdict was: change all the switches because you don't want to have to open it twice for the same problem. Every switch on the board was replaced. They gave me the old parts back but I still have yet to go through them to cull out the bad ones. They also had to replace the floppy drive which had stopped working. The total cost including parts & labor was just under $700 usd.
The point being that this appears to be a continuing quality problem with this general class of switches. It's a shame that the switch manufacturers have such poor switch design and or quality control. I would hope that companies like Korg will find a way to specify a higher quality switch in the future so that the end users don't have to put up with this again.
We paid enough money that should have given us reliable mechanical parts. I haven't done it yet, but I bet the cost of the T1 in 1991 of $6,500 usd adjusted for inflation probably comes close to the cost of my O88. In all fairness, the switches on the T1 started going funky after 10 years of use and were replaced 3 years after that.
Korg, please start specifying better switches.
It appears that the MTBF (mean time between failures) of this class of switch has declined by roughly half now in the O. Not good. Maybe you should start going to milspec switches or 1 grade down from there. Planned obsolescence is a drag.
Check this out.
) and I'll try repairing a couple of buttons that aren't working as well as they should be
