Korg Poly800/EX800 Users

Since you said "batterys" I'm assuming you are talking about C cells and
haven't got a lithium cell installed for the memory. The only time I've seen
this problem, the C cells really were not making good contact and the memory
would get wiped if the synth was bumped. If you haven't added a lithium cell
for memory backup, I would suggest this as a first step. The modifications
needed would depend on which version of the MK1 you have (#1-no lithium
cell, no solder pads on the board  #2-no lithium cell but board has solder
pads where it would eventually go  #3-Solder pads and an old dead lithium
cell already there). I certainly would NOT solder in a battery. Install a
socket for a CR2032 instead. If you've got a soldering iron, we can talk you
through this.
 
Don B.

  _____  

From: korgpolyex@yahoogroups.com [mailto:korgpolyex@yahoogroups.com] On
Behalf Of bigbreadair
Sent: Thursday, June 24, 2010 5:20 PM
To: korgpolyex@yahoogroups.com
Subject: [korgpolyex] MK1 MEMORY PROBLEM


  

Hey guys! I bought a used MK1 a couple of years back. It worked great, but
every once in a while would lose the factory presets when unplugged for an
hour or so while gigging, reverting to unusable "noise" sounds. I am using
fresh batterys. Since I have the factory patch SYSX I would simply dump it
back in after the show, but a few months ago it stopped responding to the
dump. After the load the diplay will say "good" but the weird "noise"
presets will still be there. Anyone else encounter this issue? 

jayson