Yamaha PSR-170 Owner's Manual | Page 9

Yamaha Musical Instruments Owner's Manual - PSR-170.
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Setting Up

9

Accessory Jacks

 Using Headphones• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •
For private practicing and playing without disturbing others, connect a set of ste-
reo headphones 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-172/170 is equipped with a built-in speaker system, you can also 
play it through an external amplifier/speaker system.  First, make sure the PSR-
172/170 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-172/170.

 Using a Sustain Footswitch  • • • • • • • • • • • • • • • • • • • • • • • • •
This feature lets you use an optional footswitch (Yamaha FC4 or FC5) to sustain 
the sound of the keyboard voice.  This is used in the same way as a damper pedal 
on an acoustic piano — press and hold down the footswitch as you play the key-
board to sustain the sound.

 Using the MIDI Terminals  • • • • • • • • • • • • • • • • • • • • • • • • • • •
The PSR-172/170 also features MIDI terminals, allowing you to interface the 
PSR-172/170 with other MIDI instruments and devices.  (For more information, 
see page 52.)  

•  To prevent damage to the 

speakers, set the volume of the 
external devices at the mini-
mum setting before connect-
ing 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 levels and grad-
ually raise the volume controls 
while playing the instrument to 
set the desired listening level.

•  Make sure that the footswitch 

plug is properly connected to the 
SUSTAIN jack before turning on 
the power.

•  Do not press the footswitch while 

turning the power on.  Doing this 
changes the recognized polarity 
of the footswitch, resulting in 
reversed footswitch operation.

MIDI 

instrument

Music Rest
Insert the bottom edge of the included music rest into 
the slot located at the top rear of the PSR-172/170 con-
trol panel.

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