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DGX-670 Owner’s Manual
Troubleshooting
103
Troubleshooting
Overall
A click or pop is heard when the power is
turned on or off.
This is normal. Electrical current is being applied to the instrument.
The power is automatically turned off. This is normal and due to the Auto Power Off function. If necessary, set the
parameter of the Auto Power Off function (page 18).
Noise is heard from the instrument’s
speakers.
Noise may be heard if a mobile phone is used near the instrument or if the
phone is ringing. Turn off the mobile phone, or use it further away from the
instrument.
Noise is heard from the instrument’s
speakers or headphones when using the
instrument with the app on the smart device
such as smartphone or tablet.
When you use the instrument along with the app on your smart device, we
recommend that you set Wi-Fi or Bluetooth to on after enabling “Airplane
Mode” on that device in order to avoid noise caused by communication.
In the LCD, there are some specific points
that are always lit or unlit.
These are the result of defective pixels and occasionally occur in TFT-
LCDs; they do not indicate a problem in operation.
Mechanical noise is heard during
performance.
The keyboard mechanism of this instrument simulates the keyboard
mechanism of an actual piano. Mechanical noise is also heard on a piano.
There is a slight difference in sound quality
among different notes played on the
keyboard.
This is normal and is a result of the instrument’s sampling system.
Some Voices have a looping sound.
Some noise or vibrato is noticeable at higher
pitches, depending upon the Voice.
The overall volume is too low or no sound is
heard.
• The master volume may be set too low. Set it to an appropriate level
with the [MASTER VOLUME] dial.
• All keyboard parts are set to off. Use the PART ON/OFF [MAIN]/
[LAYER]/[LEFT] button to turn on the desired part.
• The volume of the individual parts may be set too low. Raise the volume
in the Mixer display (page 88).
• Make sure the desired channel is set to on (pages 53, 65).
• Make sure a pair of headphones or an adapter plug is not connected to
the [PHONES/OUTPUT] jack.
• Make sure that the Speaker setting is set to On: [MENU] Cursor
buttons [U][D][L][R] Utility, [ENTER] TAB [L] Config1 Cursor
button [U] 1 Speaker. For details, refer to the Reference Manual on the
website, Chapter 10.
The sound is distorted or noisy. • The volume may be turned up too high. Make sure all relevant volume
settings are appropriate.
• This may be caused by certain effects or filter settings. Check the effect
or filter settings and change them accordingly in the Mixer display,
referring to the Reference Manual on the website, Chapter 8.
Not all simultaneously played notes sound. You are probably exceeding the maximum polyphony (page 106) of the
instrument. When the maximum polyphony is exceeded, the earliest
played notes will stop sounding, letting the latest played notes sound.
The keyboard volume is lower than the Song/
Style playback volume.
The volume of the keyboard parts may be set too low. Raise the keyboard
volume (Main/Layer/Left), or lower the Song/Style volume in the Mixer
display (page 88).
The Main display does not appear even when
turning the power on.
This may occur if a USB flash drive has been installed to the instrument.
Installation of some USB flash drives may result a long interval between
turning the power on and appearance of the Main display. To avoid this,
turn the power on after disconnecting the device.
Some characters of the file/folder name are
garbled.
The language settings have been changed. Set the appropriate language
for the file/folder name (page 18).
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