Casio WK-1800 Service Manual page 27

<Other utilities>
System reset
1. While pressing down "ENTER" button, turn power on.
2. Display indicates "Reset?".
3. Pressing "+" button initializes the instrument.
Pressing "–" button invalidates system reset.
4. The instrument turns on automatically.
Touch off max
1. While pressing down "RHYTHM" and "MODE" buttons, turn the power on.
2. Display indicates "TouchMax".
3. The instrument is set in touch off max mode.
In this state, sound volume in touch response off mode becomes maximum.
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