Weird program change

Bruno777 · Post by **Bruno777** » Tue Aug 14, 2018 3:03 am

Hello guys, i've recently bought a korg kross 2, and after playing it for a while, i've noticed something weird. Sometimes, when i play very hard or quickly, the program that i'm into, changes to the next one. It happened on combi mode, on program mode, and even on favorites mode. Its very frustrating, it even happened to me playing live.

Why it is happening? how can i solve this problem?

deano7000 · Post by **deano7000** » Sat Jul 27, 2019 9:29 pm

This has happened to me too, about 6 months ago. I was playing on a very loud stage at the time and the Program jumped around. At the time I assumed it was because the value knob was being vibrated by the loud stage sound.

However, a couple of days ago, it happened again, just in my quiet room with no vibration.

I have had a separate, but similar-looking problem one other time but that was because I had a strange midi loop going on, and every program change got sent through multiple times.

Did you ever find out more about this?

Bruno777 · Post by **Bruno777** » Sun Aug 04, 2019 12:01 am

No, ive never found out what was going on. Today i had the same problem again and didnt find a clue or an answer on the web. Maybe updating the firmware will solve it?

deano7000 · Post by **deano7000** » Mon Aug 05, 2019 9:35 am

It's worth a try I guess Bruno, but I'm running the latest version (1.1.0) and I'm pretty sure I've experienced this problem with that version.

I'm wondering if it might be physical - like the value knob is loose or something? If I could actually deliberately reproduce the problem, I'd raise it with someone at Korg, but I can't force it to happen.

Do you have any other clues about what makes it happen? I've tried pressing firmly on the panel in various places to see if it's a loose surface mount problem or something, but no joy. Is it just when you play hard?

I'm sort of grasping at straws really. I've got some gigs coming up a bit later on this year, and I need the Kross to basically be my master controller, so I'm getting nervous!

lidserter · Post by **lidserter** » Mon Aug 05, 2019 1:54 pm

This sounds like a connection problem, somewhere there is a bad connection. If you're out of guarantee you may open the unit and disconnect and re seat every connector, especially from the value wheel, or arrow keys, if on guarantee.. i would suggest to contact them

deano7000 · Post by **deano7000** » Tue Aug 06, 2019 12:31 am

Thanks lidserter, that's a good suggestion. I'm usually pretty scared of opening up synths and fiddling with the internals, but I think I'll have to be brave.

I don't actually own the synth, it belongs to the band I'm playing with. But if it's out of warranty I'll definitely open it up to check the connections.

Bruno777 · Post by **Bruno777** » Thu Aug 15, 2019 8:56 pm

today i had the same problem again, but this time the korg went crazier than ever. I managed to record a video :

https://youtu.be/ogRyD04GakQ

I dont know that to do, im out of warranty so i think im gonna try open the keyboard and mess with the conections.

deano7000 · Post by **deano7000** » Fri Aug 16, 2019 2:34 am

Hey Bruno777, I tried to watch your video but got a "video unavailable" message. Do you have security settings tied down or something? I'm very interested to see the video.

Bruno777 · Post by **Bruno777** » Fri Aug 16, 2019 4:00 am

yeah, i changed the configuration. try again! thanks

deano7000 · Post by **deano7000** » Fri Aug 16, 2019 4:20 am

That looks bad Bruno.

I'm going to talk to a guy this afternoon who works at Korg. (Here in Australia that is). I'll see if there are other people reporting the problem. Not sure how this might help, but we'll see if I can find anything out.

lidserter · Post by **lidserter** » Fri Aug 16, 2019 10:07 am

You are using the Kross alone? Or is there another device connected like another keyboard or pc?

Bruno777 · Post by **Bruno777** » Sat Aug 17, 2019 1:26 pm

Thankyou deano. Lidserter, im using the kross alone.

lidserter · Post by **lidserter** » Sat Aug 17, 2019 3:59 pm

Open your keyboard. I learnt from Japanese watches that each screw must be where it were: old Casio backplate got a slightly bigger screw than the other, and guess what? You put that one in the wrong hole and then you have a dancing screw in another place...
So! Get a comfortable space, big table or bed and leave each screw there following the design...
Then be gentle when dealing with the cable connectors, gentle rock them side to side instead of pulling hard from them.
If this doesn't fix the problem, then probably there are a couple of bad switches that need replacement. You can tell if it's the wheel or arrows if you leave the program or combi in an edit page, if it's the wheel it should increase or decrease the value of a single parameter, if it's an arrow it will select different parameters...

deano7000 · Post by **deano7000** » Sun Aug 18, 2019 1:06 am

Hey Bruno, are you able to reproduce this problem all the time? Does it just happen occasionally, or can you always make it happen by doing something in particular, such as when you play hard? Does it depend where on the keyboard you play?

Bruno777 · Post by **Bruno777** » Wed Aug 21, 2019 4:18 pm

It seems that the problem is totally random. I cannot reproduce it or make it happen. It doesnt happen every time i play hard, nor every time i play on an specific area of the keyboard.

lidserter wrote:Open your keyboard. I learnt from Japanese watches that each screw must be where it were: old Casio backplate got a slightly bigger screw than the other, and guess what? You put that one in the wrong hole and then you have a dancing screw in another place...
So! Get a comfortable space, big table or bed and leave each screw there following the design...
Then be gentle when dealing with the cable connectors, gentle rock them side to side instead of pulling hard from them.
If this doesn't fix the problem, then probably there are a couple of bad switches that need replacement. You can tell if it's the wheel or arrows if you leave the program or combi in an edit page, if it's the wheel it should increase or decrease the value of a single parameter, if it's an arrow it will select different parameters...

Ill try that. Thankyou!