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Original Roland CUBE-40 and CUBE-60 Keyboard / Guitar Amp Amplifier Original Service Manual / Schematics / Parts List Book, from 1981.
This
is an original Roland service notes manual book for the vintage Roland CUBE-40 and CUBE-60 keyboard amplifier, which though made for keyboards, could be used with guitars as well. This book is from 1981 and is in very good condition.
It is an original service manual complete with specs, layout, parts lists, circuit boards,
and circuit diagrams / schematics and more. This is the original Roland service notes booklet, from 1981, and was made in Japan!