Casio Celviano AP400 User's Guide
![Casio Celviano AP400 Keyboard manual cover](/images/eGtBbugWHeizEoAQiHjwquVn/thumbs/thumb175x175.webp)
To reset your Casio Celviano AP400 to factory settings, turn off the keyboard. Then, hold down the "Function" button while turning the power back on. Continue holding the button until the reset process is complete.
First, check if the volume is turned up. Ensure that headphones are not plugged in, as this will mute the speakers. Verify that the power adapter is securely connected and that the keyboard is turned on.
Use a USB-MIDI interface cable to connect the MIDI OUT port on the AP400 to your computer's USB port. Install any necessary drivers and select the AP400 as your input device in your music software.
Check if the keyboard is in "Local Control" mode which can be accessed via the function menu. If the issue persists, the contacts under the keys might need cleaning or repair. Consult a professional technician if necessary.
Press the "Function" button, then use the "Transpose" keys to shift the pitch up or down by semitones as needed. Refer to the user manual for specific key combinations.
Keep the keyboard clean by dusting it regularly with a soft cloth. Avoid liquids near the instrument, and store it in a stable, dry environment. For internal maintenance, consult a professional technician.
Use the built-in recording function by pressing the "Record" button, selecting a track, and then playing your performance. Press "Stop" when done, and use the "Play" button to listen.
Check the auto power-off settings in the function menu. Disable it if necessary. Ensure that the power adapter is working properly and there are no electrical issues.
Use the "Function" button to enter the settings menu. Select "Touch Sensitivity" and choose from the available options: Light, Normal, or Heavy, to suit your playing style.
Yes, you can use headphones with your AP400. Simply plug them into the headphone jack located on the front left side of the keyboard. This will automatically mute the speakers.