Korg Poly800/EX800 Users

Hi Michael,

There isn't really any easy way to put a battery holder in the normal place
on those old boards. I usually put a CR2032 holder way over on the little
board with 3 trimpots, over beside the C cell holder. There is already one
little hole drilled in it on the far side of the trimpots. I just measure
the right location for another hole, drill it, stick the battery holder in
and bend the solder tabs so it doesn't fall out. It needs to be a very, very
small hole. So, here is how I do it:

 

1 - Remove the main board.

2 - Remove R1 and D1 (in the corner near where the A/C adapter plugs in).

3 - Remove the little board with the 3 trimmers and drill another hole for
the battery holder.

4 - Put the battery holder in and solder black and red wires to it. (red is
positive).

5 - Attach the other end of the wires to the holes where D1 came from. (red
near the edge of the board and black near the "D1" label)

 

Stick in a new CR2032, reload your patches, and you should be all set.

Don Backshall

 

  _____  

From: korgpolyex@yahoogroups.com [mailto:korgpolyex@yahoogroups.com] On
Behalf Of polyprelude
Sent: Wednesday, August 31, 2011 7:30 PM
To: korgpolyex@yahoogroups.com
Subject: [korgpolyex] Early version battery mod?

 

  

Hi I havnt found any definitive info on how to do the backup battery mod in
an early version (without solder tabs)

Can anyone give me some more info or a link please?

Cheers, Michael