Yamaha P-125a MIDI Reference Guide
![Yamaha P-125a Piano manual cover](/images/CpoAGYWBOWUcYIFxTbXdcAHV/thumbs/thumb175x175.webp)
To connect the Yamaha P-125a to a computer, use a USB cable to connect the USB TO HOST port on the piano to a USB port on your computer. Install any necessary drivers if prompted, and select the P-125a as the MIDI input/output device in your music software.
If the keys are not responding, first check if the keyboard is properly connected to a power source and turned on. Ensure that the volume is turned up and that headphones are plugged in properly if used. If the issue persists, try resetting the piano to factory settings by holding down the highest white key while turning the power on.
To record your performance, you can use the built-in recording function. Press the [Rec] button followed by the desired track button (either [1] or [2]) to start recording. Play your performance, then press the [Rec] button again to stop. To listen, press the [Play] button.
Regular maintenance for the Yamaha P-125a includes keeping the keyboard clean by dusting regularly with a soft, dry cloth. Avoid using chemical cleaners. Ensure that the piano is kept in a stable environment, away from direct sunlight and humidity. If issues arise, contact a professional technician.
To transpose the keyboard, hold down the [Function] button and press the corresponding keys on the keyboard to adjust the pitch up or down in semitones. Refer to the user manual for the specific keys that correspond to the desired transposition.
Yes, the Yamaha P-125a is compatible with a sustain pedal. Connect the pedal to the SUSTAIN jack on the back of the piano. You can use the Yamaha FC3A or any compatible pedal for sustain functionality.
If the piano is making unusual noises, first check that all cables are securely connected and that there are no nearby electronic devices causing interference. If the noise persists, try a factory reset or consult with a Yamaha service center.
To use the metronome, press the [Metronome] button to start. Adjust the tempo by holding down the [Metronome] button and pressing the [-/No] or [+/Yes] buttons. To change the time signature, hold the [Metronome] button and press the corresponding keys as indicated in the user guide.
To connect external speakers, use the LINE OUT jacks on the back of the P-125a. Connect these jacks to the input on your speakers or amplifier using appropriate cables. Ensure the speakers are powered and set to a suitable volume level.
To store the Yamaha P-125a, cover it with a dust cover when not in use. Ensure it is placed in a room with stable temperature and humidity, away from direct sunlight and heat sources. If storing for an extended period, remove batteries if applicable to prevent leakage.