ZEN Instruments

A blog about electronic instruments from a DIY standpoint

Wednesday, December 13, 2017

Roland PB-300 Schematic



Here are some scans from the Roland PB-300 service manual. It was released in '83 as a
companion to their HP-400 digital piano. It stands as Roland's final, fully-analog drum machine.

First, a runthrough of the presets:




Higher resolution and additional images on imgur here.




An AVR replacement CPU offering MIDI triggers



Posted by Zack at 12:01 AM 11 comments:
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Labels: Analog, Demo, Drum Machine, PB-300, Roland, Schematic
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