BOSS DR-55 Service Manual

This is a collection of schematics and service notes fro the BOSS (Roland) DR-55 Dr Rhythm Drum Machine.

It's rough and ready, and was assembled BY ME from whatever I could find out there.

Having said that, I have used this info to repair dozens of these things using this info..

I have included an earlier version of the pdf, just in case I missed anything in the later one.

9 pages, PDF Format. 2 files