Comments on: Korg Poly-800 MKII repair

By: Rick Howes

Rick Howes — Sat, 12 Jan 2013 22:00:39 +0000

Thanks Karl. I had the same power problem. I tried to bypass the power jack and connected a jack to the battery terminals. That worked for a while and then died again. I found that Q1 and Q18 were burned out so I replaced with the equiv NTE 185 and 184 and changed the zenor too. Works beauty again.
Rick

By: Josh

Josh — Thu, 30 Jun 2011 21:52:45 +0000

Hi Karl,

I just got a second-hand one and it’s acting weird: it sometimes turns on and sometimes not and only stays on for about 9 seconds, at which point the screen flickers and goes off and no sound is emitted.

I believe that if I fix that power issue, I could reprogram it.

What should I do? I can try to fix it myself with help.

By: DW

DW — Wed, 30 Nov -0001 00:00:00 +0000

Hey Karl, nice job getting the original transistor.

By: jeff-o

jeff-o — Wed, 30 Nov -0001 00:00:00 +0000

So when’s the first concert?

By: Anonymous

Anonymous — Wed, 30 Nov -0001 00:00:00 +0000

Hey Karl,

Awesome job on the fix-up.
I was over at a friends house last weekend, where I discovered a Korg Poly-800 MKII in excellent condition. Maybe I can borrow it sometime and join you in a synth-o-jam!

-J