Yamaha PSR-450

PSR-450 Owner’s Manual

Always turn the power off when the instrument is not in use.

When using a power adaptor, 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.

Make sure to discard used batteries according to local regulations.

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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, styles ﬁles, MIDI ﬁles,

WAVE data 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.

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

The illustrations and LCD screens as shown in this owner’s manual are for instructional purposes only, and may be different from the ones on your instrument.

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• 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.

• 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 operate the instrument 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

For instruments with RAM that retains data by using dry cell batteries

or a power adaptor

•As long as dry cell batteries are installed or the power adaptor is connected, the

instrument retains the internal data when the power is turned off. If you remove

the batteries and disconnect the adaptor, the data will be lost. Save important

data to a ﬂoppy disk/external media such as the Yamaha MDF3 MIDI data ﬁler.

Keep the power adaptor connected while you replace the batteries to prevent

loss of data.

Backing up the ﬂoppy disk

•To protect against data loss through media damage, we recommend that you

save your important data onto two ﬂoppy disks.

Connections

Maintenance

Handling caution

Saving data