P-155 Owner’s Manual

ENGLISH
5
• Before connecting the instrument to other electronic components, turn off the
power for all components. Before turning the power on or off for all
components, set all volume levels to minimum. Also, be sure to set the volumes
of all components at their minimum levels and gradually raise the volume
controls while playing the instrument to set the desired listening level.
• When cleaning the instrument, use a soft, dr y cloth. Do not use paint thinners,
solvents, cleaning fluids, or chemical-impregnated wiping cloths.
• During extreme changes in temperature or humidity, condensation may occur
and water may collect on the surface of the instrument. If water is left, the
wooden parts may absorb the water and be damaged. Make sure to wipe any
water off immediately with a soft cloth.
• Do not insert a finger or hand in any gaps on the instrument.
• Never insert or drop paper, metallic, or other objects into the gaps on the panel
or keyboard. If this happens, turn off the power immediately and unplug the
power cord from the AC outlet. Then have the instrument inspected by qualified
Yamaha service personnel.
•Do not place vinyl, plastic or rubber objects on the instrument, since this might
discolor the panel or keyboard.
•Do not rest your weight on, or place heavy objects on the instrument, and do not
use excessive force on the buttons, switches or connectors.
• Do not use the instrument/device or headphones for a long period of time at a
high or uncomfortable volume level, since this can cause permanent hearing
loss. If you experience any hearing loss or ringing in the ears, consult a
physician.

Saving and backing up your data

•Data in the instrument’s internal memory can be lost due to operational errors or
malfunction. Be sure to save any important data to external media via a
computer connected to the instrument. (page 52)

Backing up the USB Storage device

•To protect against data loss through media damage, we recommend that you
save your important data onto two USB storage devices.
Always turn the power off when the instrument is not in use.
Even when the power switch is in the “STANDBY” position, electricity is still flowing to the instrument at the minimum level. When you are not using the instrument for a long
time, make sure you unplug the AC power adaptor from the wall AC outlet.
• Copying of the commercially available musical data including but not limited to MIDI data and/or audio data is strictly prohibited except for your personal use.
• Windows is a registered trademark of Microsoft® Corporation in the United States and other countries.
• The company names and product names in this manual are the trademarks or registered trademarks of their respective companies.
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ConnectionsMaintenanceHandling cautionSaving data

Yamaha cannot be held responsible for damage caused by improper use or modifications to the instrument, or data that is lost or destroyed.

This product incorporates and bundles computer programs and contents in which Yamaha owns copyrights or with respect to which it has license to use

others’ copyrights. Such copyrighted materials include, without limitation, all computer software, style files, MIDI files, WAVE data, musical scores and sound

recordings. Any unauthorized use of such programs and contents outside of personal use is not permitted under relevant laws. Any violation of copyright has

legal consequences. DON’T MAKE, DISTRIBUTE OR USE ILLEGAL COPIES.

The serial number of this product may be found on the bottom of the unit. You
should note this serial number in the space provided below and retain this manual
as a permanent record of your purchase to aid identification in the event of theft.
Model No. Serial No.
(3)-12 2/2