This service manual for the YAMAHA DGX-230 YPG-235 includes specifications, panel layout, circuit board layout & wiring, disassembly procedure, LSI pin description, IC block diagram, circuit boards, test program, initialization, user data backup, MIDI implementation chart, MIDI data format, parts list, block diagram, and overall circuit diagram.
The manual is in English and consists of 61 pages. It is available in .PDF format and is compatible with Windows and MAC platforms.
