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Original Roland Service Manual Sheet for Roland Spirit Bass-30 / 50 Bass Guitar Amps, from 1982.

This is an original Roland service manual for the vintage SPIRIT BASS-30 / 50 bass guitar amplifiers.

It is an original service manual in very good condition, and complete. This one is brief, with 2 pages that fold out for a total of 4 pages. With specs, layout, parts list, circuit boards, and circuit diagrams / schematics.

Original Roland document, from 1982, printed in Japan.

• This is a manual or document, this is NOT a piece of equipment or instrument. If you have any questions, I'm always happy to answer them.