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22 NP-32/NP-12 Owner’s Manual
Troubleshooting
Problem Cause Solution
When the instrument is turned on or off, a
popping sound is temporarily produced.
This is normal and indicates that the instrument is
receiving electrical power.
—
The instrument does not turn on. The plugs are not properly connected. Securely connect the AC adaptor to the DC IN jack on the instrument and
to the AC outlet (page 12).
The batteries are low or dead. Use either new batteries or recharged Ni-MH batteries, or use the
included AC adaptor (page 12).
Power suddenly and unexpectedly turns off. This is normal and the Auto Power Off function may
have been activated (page 21).
—
When the instrument is turned on, the power
turns off suddenly and unexpectedly.
If an AC adaptor other than the one specified is used,
the power may be turned off suddenly and
unexpectedly.
—
Noise is heard from the instrument’s
speakers or headphones.
The noise may be due to interference caused by the
use of a mobile phone in close proximity to the
instrument.
Turn off the mobile phone, or use it further away from the instrument.
The batteries are low or dead. Use either new batteries or recharged Ni-MH batteries, or use the
included AC adaptor (page 12).
The overall volume is low, or no sound is
heard.
The volume is set too low. Turn up the volume (page 10).
A pair of headphones or conversion adaptor is
connected to [PHONES/OUTPUT].
Disconnect the pair of headphones or conversion adaptor (page 11).
Local Control is off. Turn Local Control on (see the Online Manual “MIDI Reference”).
The batteries are low or dead. Use either new batteries or recharged Ni-MH batteries, or use the
included AC adaptor (page 12).
The sound is distorted. You are using manganese batteries. Turn down the volume, or use either new batteries or recharged Ni-MH
batteries, or use the included AC adaptor (page 12).
The pitch and/or tone of the piano Voices in
certain ranges do not sound right.
This is normal and is a result of sampling algorithms. —
The sustain pedal has no effect. The pedal cable/plug may not be properly connected. Make sure to securely insert the pedal plug into [SUSTAIN] (page 11).
The footswitch/foot pedal seems to produce
the opposite effect.
The polarity is reversed because the footswitch/foot
pedal was pressed when the power was turned on.
Turn the power off and turn it on again to reset the function (page 11).
Noise is heard from the instrument’s
speakers or headphones when using the
instrument with the application on iPhone/
iPad/iPod touch.
— When you use the instrument along with the application on your iPhone/
iPad/iPod touch, we recommend that you set “Airplane Mode” to “ON” on
your device.
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