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Yamaha PSR-4000 Portatone Midi Keyboard Workstation Original Service Manual Book
$ 21.11
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Description
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Yamaha PSR-4000 Portatone Midi Keyboard Workstation Original Service Manual Book.
Very good lightly used condition original Yamaha service manual for the excellent PSR4000 workstation keyboard. It's a very large booklet, as this is a large and sophisticated instrument.
This service manual has specs, panel layout, block diagram, MIDI implementation, disassembly procedure, test program, parts list, exploded views, circuit board diagrams, the overall foldout circuit diagram and more. See the photo!
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. Thank you so much for looking!
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