Korg Poly800/EX800 Users

Hey all ! I solved my NJM Filter problem (Thanks !). Found a used one 
for $20 and replaced it, and as I assumed, it was the missing leg (No 
11) It was indeed keeping Osc 1 from sounding.

Now, I also did a battery mod, but it's not saving patches. I'm
thinking I did it wrong. Here's a pic.

http://img.photobucket.com/albums/v235/augerinn/PC220002.jpg

The Diode goes to the negative terminal on the battery, and the
positive goes where the leg of the diode used to be soldered. Did I do
it right ?