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Yamaha Service Manual Original Book Pick1 for PSR Portatone Electronic Keyboards

Yamaha Service Manual Original Book Pick1 for PSR Portatone Electronic Keyboards

Take your pick, for repair and for circuit bending. Choose ONE original Yamaha Service Manual. This is an original service manual, with specs, panel layout, block diagram, dis assembly procedure, test program, parts list, exploded views, circuit board diagrams and more!