Yamaha P-140 Owner's Manual

To connect your Yamaha P-140 to a computer, use a USB-MIDI interface. Connect the MIDI OUT of the P-140 to the MIDI IN of the interface, and the MIDI IN of the P-140 to the MIDI OUT of the interface. Then, connect the USB end to your computer and install any necessary drivers.
First, ensure the piano is properly plugged in and turned on. Check for any visible obstructions or debris beneath the keys. If the problem persists, it may require professional servicing to address internal issues like connectivity or sensor problems.
To reset the P-140 to factory settings, turn off the power. Then, hold down the highest white key (C7) while turning the power back on. This will restore the default settings.
Check if the volume is turned up and the headphones are unplugged. Ensure that the Local Control setting is on, which can be adjusted in the Function settings. If there's still no sound, inspect the speaker connections or consult a technician.
Regularly dust the piano with a soft cloth and avoid placing liquids near it. Ensure the power cord is in good condition. Have it serviced by a professional every few years to maintain optimal performance.
To transpose, press and hold the [TRANSPOSE] button, then use the [-/NO] and [+/YES] buttons to change the key in semitone steps. Release the [TRANSPOSE] button when you reach the desired key.
Yes, you can use a sustain pedal. Connect the pedal to the "SUSTAIN" jack located at the back of the piano. Ensure the pedal is compatible and functioning correctly for optimal performance.
Ensure the piano is receiving power and that the power cable is secure. If the display still doesn't work, it could be a sign of an internal fault, and you should contact a professional technician for diagnosis and repair.
Use the built-in recorder by pressing the [REC] button to start recording. Play your piece, then press [PLAY] to stop and listen. For more advanced recording, connect to a computer with a DAW via a USB-MIDI interface.
Store the piano in a dry, temperature-stable environment away from direct sunlight and moisture. Ideal temperatures are between 15°C and 25°C (59°F to 77°F) with 40-50% humidity.