Archive of the former Yahoo!Groups mailing list: Korg Poly800/EX800 Users
Subject: Poly-800 II Service Manual and Mods
From: "narfman96" <narfman96@...>
Date: 2007-07-10
I was surfing Ebay yesterday when an interesting item caught my eye...
An original Poly-800 II Service Manual complete with schematics and
parts listing. Whoohoo!!! I snagged this puppy without any
hestitation. Now maybe it will be a bit easier to play around with
these mods I've been trying to get sorted out.
I spent the better part of an afternoon shotgunning components in the
feedback loop for the noise level mod without really affecting the
drone frequencies I've been trying to eliminate. I'm thinking maybe
there's a better place to control this level, like after the 2nd
stage of the 5223 op amp before it goes into the VCA. If I get
anywhere I'll post the results of my efforts. Has anyone listened to
the sample I posted of the drone sound???? Any comments???? I know
it's summer here in the states and everyone is off doing their own
thing...
When I get this manual I can scan it if anyone is interested. I doubt
there are many of these docs around nowadays. There are many other
trimpots in the Poly-800 II that could be moved to the front panel
once their function is understood. The 3 trimpots on the little
daughter board have me wondering what they do????
Well back to playing around with my DarkStar. I found a Vocoda kit to
install in this beastie.
->->->-> Mike, Keep up the great work!!!! You're still the number one
man with a plan in my book! Someday I would like to see your program
flowcharts Mr. Einstein. (I'm not being facetious.)
Fran