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kusho

My Prologue 16 is about two years old.
I have noticed recently that sometimes when I play a note it starts out with a scratchy distorted noise. I guess one of the voices is beginning to fail?

Has anyone had this happen?

It is past warranty.
I guess I will enquire with Korg about getting it repaired.

Narioso · Posted: Sun Mar 20, 2022 5:19 pm Post subject:

If you haven't changed any user oscillators recently it is probably something wrong.

But hear with Korg support/service if any connector between voice cards may be oxidiced or something, or loose.

Otherwise it may be a user oscillator that corrupt memory under some circumstances. I had one of those. In my case a kind of klonk sound every 4 voices or so after visiting one preset with that oscillator. But power cycle fix that.
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MIDI gear: Sequential REV2.16, Prologue-8, Hammond XK-3C, Kawai MP7SE piano, Nord Lead 2X, Roland D-05

kusho · Posted: Sun Mar 20, 2022 6:25 pm Post subject:

kusho · Posted: Tue Mar 22, 2022 1:41 am Post subject:

So I have done a factory reset, removed all user osc and fx.
Also reinstalled latest firmware.
I still have a problem of noisy VCOs using INIT patch with no FX.

I heard that Korg no longer repair products out of warranty. I will see if they can do anything.
This thing is just 2 years old. Behringer gear lasts longer than this. I guess Korg is a dinosaur company?

kusho · Posted: Tue Mar 22, 2022 3:19 am Post subject:

This error came up in the voice componentry test.
I ran the test from the service manual.

Service manual is available here:
https://www.synthxl.com/korg-prologue/

Sending it to the third party agent for investigation after they replied to my query. So that's good.

Narioso · Posted: Tue Mar 22, 2022 6:33 am Post subject:

Thanks for the link to service manual, that may come in handy at some point in future.

- Yes, it's a mess when needing service.

Hope you get it sorted.
_________________
MIDI gear: Sequential REV2.16, Prologue-8, Hammond XK-3C, Kawai MP7SE piano, Nord Lead 2X, Roland D-05

kusho · Posted: Sun Sep 10, 2023 9:28 pm Post subject:

Just to report back on this for anyone else:
I sent it for inspection to the NZ Korg authorized repair team. After thinking it was fine they finally found the fault and replaced one of the voice cards.
I asked if they had many issues with the Prologue, if many people were sending them in for repair, and he said no, they seem to be very solid quality. So I just got one of the rare cases.
Anyway it's all fixed after NZ$400 or so for sending to another city and repair.
Shame to have to spend that but it's back to sounding as it should.