Yamaha YNP-25 Panduan Pemilik - Halaman 27

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Halaman Cetak
Yamaha YNP-25 Panduan Pemilik

Troubleshooting

Problem
The NP-30/YNP-25 does not turn on.
Noise is heard from the speakers or head-
phones.
The overall volume is low, or no sound is
heard.
The sound is distorted.
The sustain pedal has no effect.

Optional Equipment

Foot Pedal (FC3/FC4/FC5)
Keyboard Stand (L-2C)
USB-MIDI interface (UX16 )
Headphones (HPE-150/HPE-30)
Possible Cause and Solution
The NP-30/YNP-25 has not been plugged in properly. Securely insert the female plug
into the jack on the NP-30/YNP-25, and the male plug into a proper AC outlet
(page 11).
The batteries are low or dead. Replace all six batteries with completely new alkaline
ones, or use the optional AC adaptor.
The noise may be due to interference caused by the use of a mobile phone in close
proximity to the NP-30/YNP-25. Turn off the mobile phone, or use it further away from
the NP-30/YNP-25.
The batteries are low or dead. Replace all six batteries with completely new alkaline
ones, or use the optional AC adaptor.
The Master Volume is set too low; set it to an appropriate level using the [MASTER
VOLUME] control.
Make sure a pair of headphones is not connected to the headphones jack (page 13).
Make sure that Local Control (page 25) is ON.
The batteries are low or dead. Replace all six batteries with completely new alkaline
ones, or use the optional AC adaptor.
If you are using manganese batteries with the instrument, try replacing them with a
set of new alkaline batteries. Alternately, you could use the AC adaptor instead, or
try turning down the volume.
The pedal cable/plug may not be properly connected. Make sure to securely insert
the pedal plug into the SUSTAIN jack (page 13).
Troubleshooting
NP-30/YNP-25 Owner's Manual
27