17 (!) Screws later and my Roland D-550 has a new battery. Fortunately it is not soldered, a CR2032 held in place by a metal tab. it is back up, reset, and now just have to load the presets through sysex. I have the important patches on an external card anyways as I share it between the D50 and the D550.
#synth #roland #lapc #mt32 #d20 #d50 #d550 #LASynthesis #studio #gear #midi #repair

