Hey Neal, well that's not something I've come across before. No saved presets will most likely be dead memory battery. This has been happening in MP-1s for quite a while now. The original 3v batteries are way past their use by dates and need replacing. The MP-2 battery mounts vertically (MP-1 mounts flat to the PCB) and I haven't come across a battery holder that would work. I replaced one in one of my MP-2s. I bought a CR2032 with attached "legs" and had to bend the legs quite a bit to line up with the PCB connection points (probably easier to attach a short wire to one leg). Hopefully this is all that is wrong
. You should be able to reload the factory presets using the "Copy Presets to User" see pg 50 in the manual (http://adadepot.com/index.php?topic=659.0). The last EPROM for MP-2 is v 1.41 which has faster program change (original MP-2 had an annoying lag) but you have to switch it to "Fast" in the global settings (System Edit). You can get an EPROM from MJMP (http://www.marshalljmpmodshop.net/) or PM/email him from here. If you've not read the User Manual before or haven't for a while, give it a good end to end read. I just flipped through it to find the Copy Presets bit for you and got reminded the MP-2 has some cool Macros I've never experimented with....
