Casio CASSIOPEIA A-20 - Page 59

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Terminal holder
K-spacer
5. Remove the terminal wire, then remove the main board.
6. When you replace K-film (35), stick K-spacer (34) on the “ON” key on new K-film.
* This is to prevent from accidentaly turning the computer off.
4. Unscrew two screws (30) to remove the terminal holders. Remove both battery terminal.