I've checked for disassembly info a lot on line, Dr40? yeah, but my dr 40 works just fine. The dr100mkII video was really sketchy, only showed partial info on stuck mic cable, and that was pretty useless. It has to be pretty specific, the dr100mkII comes apart from the bottom with screws, the mkIII? No such luck. It is a whole diff. body and assembly. But I appreciate the responses, it's a long shot at best. Getting the surface plate off was a little difficult, but I managed it. I'll do my best to figure it out, it would be good to get it functioning as a back up unit.