Troubleshooting - Kawai ES920 Owner's Manual

Troubleshooting

Troubleshooting
The table below summarises issues that may be experienced with the ES920 digital piano, explaining the typical
cause(s), and recommended solution(s).
Issue
The instrument does not turn on.
The instrument turns itself off after a
period of inactivity.
The instrument is turned on, however
no sound is produced when the keys are
pressed.
The sound distorts when playing at very
loud volume levels.
Strange sounds or noises are heard when
playing with piano sounds.
The top 18 notes of the keyboard sustain
far longer than neighbouring notes, even
when the damper pedal is not pressed.
The headphone volume is too low.
A USB memory device is not detected,
cannot be saved to, or does not appear to
function when connected to the "USB to
Device" port.
The instrument pauses briefly when
connecting a USB memory device.
No sound can be heard when playing
an MP3/WAV audio file stored on a USB
memory device.
An MP3/WAV audio file stored on a USB
memory device sounds strange, or does
not play back correctly.
An SMF MIDI file stored on a USB memory
device sounds strange when played back.
When recording MP3/WAV audio files, the
volume is too low/too high (distorted).
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Possible Cause and Solution
Check that the AC power adaptor is firmly attached to the instrument, and
connected to an AC outlet.
Check that the "Auto Power Off" setting is not enabled.
Check that the MASTER VOLUME slider is not set to the lowest position.
Check that a pair of headphones (or headphone adaptor plug) are not
connected to the PHONES jacks.
Check that the SPEAKER ON/OFF switch (rear connectors) is not set to Off.
Check that the Local Control setting in the MIDI Settings menu is set to On.
Check that the MASTER VOLUME slider is set to an appropriate level,
reducing the volume if excessive distortion is heard.
If connecting the instrument to an amplifier/mixer using the Line Out jacks,
reduce the value of the "Line Out Volume" setting in the Basic Settings menu.
The ES920 digital piano attempts to reproduce the rich variety of tones
created by an acoustic grand piano as accurately as possible. This includes
string resonances and damper noises, and other subtle characteristics that
contribute to the overall piano playing experience.
While these additional tones are intended to enhance the realism of the
instrument, it is possible to reduce their prominence, or disable the effects
altogether using the settings in the Virtual Technician menu.
This is the correct behaviour, and intended to reproduce the undamped
notes (typically the top two octaves) of an acoustic grand piano.
Check the technical specifications of the headphones.
If the "Nominal Impedance" specification of the headphones is less than 100
Ω (ohms), set the "Phones Volume" setting in the "Phones Settings" menu to
"High".
Check that the USB memory device is formatted to use the FAT/FAT32
filesystem, and not set to "Write Protect" mode.
Disconnect the USB device, turn the instrument off then on, then reconnect
the USB device. If the USB device still does not function, it may be damaged
or incompatible. Please try using a different USB device.
This is recognised behaviour when using very large capacity USB memory
devices.
Check that the audio player volume is not set to 0.
Check that the format of the audio file is supported and listed in the "Audio
Player supported format specifications" table.
Check that the format of the audio file is supported and listed in the "Audio
Player supported format specifications" table.
The file transfer speed of the USB memory device may be too slow to play
the audio file. Please try using a different USB memory device, ensuring that
it conforms to USB2.0 Hi-Speed standards.
The ES920 digital piano does not contain the full General MIDI sound bank
selection. Consequently, some SMF song files may not be reproduced
entirely accurately when played through the instrument.
Adjust the "Audio Recorder Gain" setting in the "Basic Settings" menu.
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