Casio AP-22S

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4. Disassembling front cover
4-1. Remove 9 screws at the front edge on the bottom.
4-2. Unscrew 2 screws and remove JCM434-PS4M
5. Disassembling keyboard unit
5-1. Remove 12 screws fixing front end of the keyboard unit and three screws supporting rear end of
the keyboard.
5-2. Remove 2 connectors CA and CB on PCB JCM434-MA1M.
5-3. Lift up the keyboard unit.