5
Power Requirements
Although the PSR-125 will run either from an optional AC
adaptor or batteries, Yamaha recommends use of an AC
adaptor whenever possible. An AC adaptor is more
environmentally friendly than batteries and does not
deplete resources.
Using an AC Power Adaptor
To connect your PSR-125 to a wall socket, you will need
the optionally available Yamaha PA-3/3B/3C Power
Adaptor. Use of other AC adaptors could result in
damage to the instrument, so be sure to ask for the right
kind. Connect one end of the adaptor to the DC IN 12V
jack on the rear panel of your PSR-125, and the other end
to a suitable electrical outlet.
DC IN 12V
WARNING
Use ONLY the Yamaha PA-3/3B/3C AC Power Adaptor (or other
adaptor specifically recommended by Yamaha) to power your
instrument from the AC mains. The use of other adaptors may
result in irreparable damage to both the adaptor and the PSR-125.
CAUTION
Unplug the AC Power Adaptor when not using the PSR-125, or
during electrical storms.
Using Batteries
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Inserting Batteries
Turn the instrument upside-down and remove the battery
compartment lid. Insert six 1.5-volt size “C” batteries as
shown in the illustration, making sure that the positive and
negative terminals are properly aligned. Replace the lid.
Accessory Jacks
Using Headphones
For private practicing and playing without disturbing
others, connect a set of stereo 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.
PHONES / OUTPUT
Connecting a 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 PHONES/OUTPUT jack of the PortaTone.
The Music Stand
Insert the bottom edge of the music stand into the slot
located at the top rear of the PSR-125 control panel.
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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.
CAUTION
Never mix old and new batteries or different types of batteries
(e.g., alkaline and manganese).
CAUTION
To prevent possible damage from battery leakage, remove the
batteries from the instrument if it is not to be used for a long time.
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Auto Power OFF
The PSR-125 features an Auto Power OFF function that
automatically turns the power OFF if the instrument is not
used for approximately 30 minutes. This functions
whether batteries or the AC power adaptor is used.
Getting Started
