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General| Number of Keys | 61 |
|---|---|
| Lesson Function | Yes |
| Display | LCD |
| MIDI | Yes |
| Speakers | 2 |
| Terminals | MIDI In/Out |
| Power Supply | AC Adapter or Batteries |
Details on model, keyboard, tones, polyphony, and auto-accompaniment.
Information on 3-step lesson, song banks, and song memory capabilities.
Specifications for audio/control terminals, power supply, and battery life.
Physical size, dimensions, and weight of the keyboard unit.
Explains the key matrix mapping and control signal logic.
Details the mapping of buttons and LEDs to their respective functions.
Layouts for the main, sub-system, and console PCBs.
Layouts for LCD, LED indicator, and keyboard interface PCBs.
Steps for removing the outer case and disconnecting internal cables.
Detailed procedures for removing main and subsidiary printed circuit boards.
Instructions for removing speakers, rubber keys, LED boards, and keyboard PCBs.
Instructions for setting up the diagnostic program and performing switch checks.
Procedures for testing AC adapter, ROM, RAM, sound, LCD, and LEDs.
Circuit diagrams for main, sub-system, and console PCBs.
Circuit diagrams for LCD, LED, and keyboard PCBs.
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