Casio Privia PX400R User's Guide

To perform a factory reset, turn off the keyboard, then hold down the 'Function' button while turning it back on. This will reset the keyboard to its original factory settings.
Use a USB-MIDI interface to connect the MIDI OUT port of the PX400R to the USB port of your computer. Ensure your recording software recognizes the keyboard as a MIDI device.
First, check if the volume is turned up and the keyboard is not in 'Mute' mode. If the issue persists, try restarting the keyboard. If certain keys still do not work, it may require professional servicing.
Press the 'Function' button, then use the keys labeled 'Touch Sensitivity' to cycle through the available sensitivity settings until you find the one that suits your playing style.
Yes, you can layer sounds by pressing the 'Layer' button. Select the first tone, then press 'Layer' again and choose the second tone. Both tones will play simultaneously.
To transpose the keyboard, press the 'Function' button and use the 'Transpose' keys to raise or lower the pitch in semitone steps.
Regularly dust the keyboard with a soft, dry cloth. Avoid using harsh chemicals or water. Keep the keyboard in a climate-controlled environment to prevent damage from humidity and temperature extremes.
Use the 'Memory' button to save your current settings. Hold it down until the display confirms the settings are saved. You can recall these settings by pressing the corresponding memory button later.
Check to ensure the power adapter is correctly plugged in and the outlet is working. If using batteries, make sure they are inserted correctly and have sufficient charge. If the problem continues, consult a technician.
Press the 'Metronome' button to start it. Adjust the tempo by using the 'Tempo' buttons and set the desired time signature using the 'Beat' buttons.