KORG POLY 800 BATTERY REPLACEMENT HOW TO

This is the large circuit board next to the battery compartment.ДЄt the middle of the board you find two square solder lands, you mount the lithium battery (CR2032 or larger), or battery holder, here. Note that those in the front are shorter than the rest. Open the Poly-800 by removing ALL screws at the bottom. If you have this problem, try to connect the Poly-800 after the sequencer is started. However, beware that the firmware of the MK-1 has a bug which cause a total crash with memory loss when hooked up to certain sequencers. After the mod the patches will be kept at all times.

KORG POLY 800 BATTERY REPLACEMENT HOW TO

This modification shows how to add a dedicated backup battery. (The MK-2 and the EX-800 have backup battery as standard.) If you remove the power and C-cells at the same time the patches are lost. The Poly-800 didn''t have any dedicated battery for keeping the patch memory. I had forgotten I had done this mod on the one I worked on. If you can make, store, and retrieve the patch later, the battery probably has some life to it (though it WILL fail). Make sure the battery is truly dead before doing all this, though. What I did was trimmed off one of the contact posts from the old dead battery and soldered it onto the holder post as an extension. The only caveat here is that the pins on the holder probably do not line up with the holes in the board. You will need to go to Radio Shack (or the interwebz) and get a battery holder, solder THAT to the place where the battery comes out (being very careful to observe polarity), then you may change the battery as needed, now and in the future. It is a CR2032, but the problem on the older models is that it is soldered to the board. However, none of this will work if the battery is dead. You could just create one patch on it (this is what I did before the days of the interwebz where everything was a download away) and copy it over and over and over, then go back and modify the patches.ДЄs you program it you will probably find that the levels for the DCOs are both 0, resulting in no sound whatsoever.

Korg poly 800 battery replacement