Yamaha PortaTone PSR-450 Owner's Manual page 5

Connections
• 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.
Maintenance
• When cleaning the instrument, use a soft, dry cloth. Do not use paint thinners,
solvents, cleaning fluids, or chemical-impregnated wiping cloths.
Handling caution
• 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.
Yamaha cannot be held responsible for damage caused by improper use or modifications to the instrument, or data that is lost or destroyed.
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.
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.
● COPYRIGHT NOTICE
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.
Saving data
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.
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PSR-450 Owner's Manual
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