Power Requirements; Accessory Jacks - Yamaha PORTATONE PSR-150 Owner's Manual

Power Requirements
Your PortaTone can run either on batteries
(sold separately) or on normal household
current by using one of the optional Yamaha
PA-3/4/40 Power Adaptors.
Using an AC Power Adaptor
To connect your PortaTone to a wall socket,
u will need the optionally available
amaha PA-3/4/40 Power Adaptors. Use of
other AC adaptors could result in damage
to the PortaTone and/or Power Adaptor, so
be sure to ask for the right kind. Plug the
adaptor into a convenient wall socket and its
connector into the DC 9-12V IN jack on the
back of your PortaTone.
Inserting Batteries
Turn the instrument upside-down and remove
the battery compartment lid. Insert six 1.5-
volt size "D" batteries as shown in the illus-
tration, making sure that the positive and
negative terminals are properly aligned.
Replace the lid.
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When the Batteries Run Down
When the batteries run low and the battery voltage
drops below a certain level, the PortaTone may
not sound or function properly. As soon as this
happens, replace them with a complete set of six
new batteries. NEVER mix old and new, or
different types of batteries (e.g. alkaline and
manganese).
Accessory Jacks
Using Headphones
For private practicing and playing without disturb-
ing others, connect a set of stereo headphones to
the rear panel HEADPHONES/AUX. OUT jack.
Sound from the built-in speaker system is auto-
matically cut off when you insert a headphone
plug into this jack.
DC 9-t2V IN
+-5-–
Connecting а Keyboard
Amplifier or Stereo System
After making sure the PortaTone and any external
devices are turned off, 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 HEAD-
PHONES/AUX. OUT jack of the PortaTone.
HEADPHONES/
AUX. OUT