Yamaha P-155 Owner's Manual

To connect your Yamaha P-155 to an external amplifier or speakers, use the LINE OUT jacks on the rear panel of the piano. These jacks require a standard 1/4-inch audio cable. Connect these cables to the input jacks on your amplifier or speakers. Ensure the volume is turned down on all devices before making connections to avoid damage.
To clean the keys on your Yamaha P-155, use a soft, damp cloth with a small amount of mild soap if necessary. Avoid using harsh chemicals or abrasive materials. Wipe the keys gently and then use a dry cloth to remove any moisture. Regular cleaning helps maintain the appearance and functionality of the keys.
To perform a factory reset on the Yamaha P-155, turn off the piano. Then, while holding down the highest white key, turn the power back on. This will restore the factory default settings. Remember that this will erase any custom settings or saved data.
If there is no sound from your Yamaha P-155, check to ensure that the volume is turned up and that headphones are not plugged into the headphone jack, as this will mute the speakers. Additionally, check the power supply and connections to ensure everything is properly connected and functioning.
Yes, the Yamaha P-155 is compatible with a sustain pedal. Connect the pedal to the SUSTAIN PEDAL jack located at the rear of the piano. Ensure the pedal is compatible with the Yamaha brand for optimal performance.
To record a performance on the Yamaha P-155, press the RECORD button. Use the SONG SELECT button to choose a track, then press PLAY to start recording. Play your piece, and press STOP when finished. The recorded performance is saved in the internal memory.
If keys are not responding, first check if there is any debris or obstruction under the keys. If the issue persists, try resetting the piano to factory settings. If this does not solve the problem, it may require professional service to address potential hardware issues.
To change the touch sensitivity, press the FUNCTION button, then use the TEMPO/OTHER button to select the 'Touch Sensitivity' setting. Use the +/- buttons to adjust the sensitivity to your preference: Soft, Medium, or Hard.
Yes, you can use headphones with the Yamaha P-155. There is a headphone jack located on the front left side of the keyboard. Plugging in headphones will automatically mute the built-in speakers, allowing for private practice sessions.
When storing your Yamaha P-155, keep it in a dry, temperature-controlled environment. Cover the piano with a dust cover to protect it from dust and debris. Ensure it is stored on a stable surface and that all cables and connections are properly secured.