Thursday, December 1, 2011

Roland GR-300 Guitar Synthesizer Service Manual

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Roland GR-300 is a classic Guitar Synthesizer that was popular in early 1980s. Its a service/repair manual document which contain electrical wiring diagrams and how complete technical information. Circuit description : GR-300 circuits are mostly built on two circuit boards: VOICE board OP-155 and Gate Board OP-156. Voice board consists of: Fundamental detector, T/V Converter, V/T Converter, envelope generator, chopper gate, power supply.
Download pdf document:
http://manuals.fdiskc.com/flat/Roland%20GR-300%20Service%20Manual.pdf