Yamaha PSR-450 - page 11

Setting Up

PSR-450 Owner’s Manual 11

Turning On the Power

With the AC power adaptor connected or with

batteries installed, simply press the power

switch until it locks in the ON position. When

the instrument is not in use, be sure to turn the

power off. (Press the switch again so that it

pops up.)

Accessory Jacks

■Using Headphones ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●

For private practicing and playing without dis-

turbing others, connect a set of stereo head-

phones to the rear panel PHONES/OUTPUT

jack. Sound from the built-in speaker system

is automatically cut off when you insert a

headphone plug into this jack.

■Connecting a Keyboard Ampliﬁer or Stereo System ● ● ● ● ● ●

Though the PSR-450 is equipped with a built-

in speaker system, you can also play it through

an external ampliﬁer/speaker system. First,

make sure the PSR-450 and any external

devices are turned off, then connect one end of

a stereo audio cable to the LINE IN or AUX IN

jack(s) of the other device and the other end to

the rear panel PHONES/OUTPUT jack on the

PSR-450.

■Using a Footswitch● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●

This feature lets you use a footswitch (Yamaha

FC4 or FC5) to sustain the sound of the voices.

The footswitch functions the same way as a

damper pedal on an acoustic piano — press

and hold down the footswitch as you play the

keyboard to sustain the sound.

■Using the MIDI Terminals● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●

The PSR-450 also features MIDI terminals,

allowing you to interface the PSR-450 with

other MIDI instruments and devices. (For

more information, see page 64.)

•Even when the switch is in the “STANDBY” position,

electricity is still ﬂowing to the instrument at the

minimum level. When you are not using the PSR-450

for a long time, make sure you unplug the AC power

adaptor from the wall AC outlet, and/or remove the

batteries from the instrument.

CAUTION

•To prevent damage to the

speakers, set the volume of

the external devices at the

minimum setting before con-

necting them. Failure to

observe these cautions may

result in electric shock or

equipment damage. Also, be

sure to set the volumes of all

devices at their minimum lev-

els and gradually raise the

volume controls while play-

ing the instrument to set the

desired listening level.

CAUTION

Stereo System

• Make sure that the footswitch

plug is properly connected to

the FOOT SWITCH jack before

turning on the power.

• Do not press the footswitch

while turning the power on.

Doing this changes the recog-

nized polarity of the footswitch,

resulting in reversed footswitch

operation.

NOTE

MIDI instrument