Yamaha PSR-E203 YPT-200 Portatone Keyboard Service Manual

This service manual for the Yamaha PSR-E203 YPT-200 Portatone Keyboard provides essential technical information for both professional mechanics and DIY enthusiasts. It includes detailed specifications, panel layout, circuit board layout & wiring, block diagram, disassembly procedure, LSI pin description, IC block diagram, circuit boards, test program, MIDI implementation chart, MIDI data format, parts list, and overall circuit diagram.

The manual is available in English and comes in a format suitable for both Windows and MAC platforms. It consists of 29 pages, making it a comprehensive resource for servicing and repairing the Yamaha PSR-E203 YPT-200 Portatone Keyboard.