Roland XV-88 Service Notes 128 Voice Expandable Synthesizer This Roland XV88 covers the following topics: specifications, location of controls, location of controls parts list, exploded view, exploded view parts list, parts list, identifying the version number, user data save and load, factory reset, how to version up the flash rom, test mode, keyboard parts list, keyboard circuit board, keyboard circuit diagram, keyboard disassembly, block diagram, circuit board, circuit diagram, error messages