Korg EFGSJ 4 Manuel D'utilisation page 16

Appendix
Troubleshooting
If any of the following problems should occur, carefully
examine the instrument to see if you can discern what the
trouble may be, and try resolving it by following the sug-
gestions below. If the instrument still does not function
properly, please contact your dealer.
The instrument will not turn on
• Check that the AC adapter is correctly connected to the
piano and the outlet.
• Make sure that the power cord is fully plugged into the
AC adapter.
No sound
• Is the cable from the speaker box connected securely to
the speaker connector on the C1/C1 Air?
• Be sure that the volume is set to an adequate level, and
not set to the MIN value.
• Make sure that the MIDI Local function is not set on
OFF (see page 14). If it is, set it to ON (or turn the in-
strument off and then on again).
• Check to see that nothing is connected to the headphone
jacks; any connection to either of these jacks will mute
the internal speakers.
Notes are interrupted or sound generation is heavy
The maximum polyphony may have been exceeded;
see "About maximum polyphony."
The sound has changed.
Effects such as reverb and chorus are saved with each
sound.
The effect settings that are applied differ depending on the
order that sounds are selected in Layer Mode or the sounds
selected for a User Song; therefore, different nuances may
be heard even with the same combination of sounds. Be
careful when selecting sounds.
The pitch or tone of the piano sounds wrong in some key
regions
The C1/C1 Air's piano sounds replicate the sound of an
actual piano as faithfully as possible. This means that in
some regions of the keyboard, you may feel that certain
overtones seem stronger, affecting the pitch or tone. This is
not a malfunction.
Your external MIDI device does not respond to MIDI data
sent from the C1/C1 Air.
• Make sure that all MIDI cables are correctly connected.
• Make sure that the C1/C1 Air is transmitting MIDI data
on the same channel that the MIDI device is receiving
on.
About maximum polyphony
If the number of notes being played simultaneously exceeds
the maximum polyphony, some notes will be lost since the
C1/C1 Air is equipped with a mechanism that stops the first
note being played to give priority to notes played with keys
pressed later. Some C1/C1 Air sounds, although they may
be a single sound, are generated by two or more oscilla-
tors (one note of a sound-generating circuit). Sounds using
just one oscillator, such as the bank 1 and 2 sounds of the
VIBES/GUITAR button, have a maximum polyphony of
16
120 notes. Sounds using two oscillators, such as the Bank
2 sound of the PIANO2 button, or the Bank 1 and 2 sounds
of the E.PIANO2 button, have a maximum polyphony of
60 notes.
120 ÷ Number of sound oscillators = Maximum polyphony
Keep the maximum polyphony in mind and carefully
choose sounds when using Layer Mode to play two sounds
simultaneously or when using the damper pedal.
Specifications
Keyboard RH3 (Real weighted hammer action 3)
88 keys (A0–C8)
Touch Curves Five available
Pitch Control Transpose, Master tuning
Temperament Three types
Sound Generation
Polyphony 120 notes (max)
Sounds 30 sounds (10 x 3 banks)
Effects Brilliance, Reverb, Chorus (3 levels each)
Recorder Two parts, maximum 14,000 notes
(approximately 100 KB)
Demo Songs 50
(Sound Demo Song × 10, Piano Song × 40)
Metronome
Tempo, Time Signature, Accent, sound and Volum
controls
Pedal
Damper*, Sostenuto, Soft* (*half-pedaling supported)
Connections
LINE OUT, Headphones × 2 , MIDI (IN, OUT), PEDAL,
SPEAKER
Controls
Power, VOLUME, PIANO SONG, TRANSPOSE,
FUNCTION, TOUCH, BRILLIANCE, REVERB,
CHORUS, BANK, Sound × 10, DISPLAY, +, –,
METRONOME, Play/Pause (
PART1, PART2
Wireless method:
Bluetooth (A2DP Sink) (C1 Air only)
Speakers 10 cm × 2
Amplification 25 W × 2
Power supply
Power consumption
Dimensions (W × D × H)
1346 × 347 × 770 mm / 52.99 × 13.66 × 30.31 inches
1346 × 347 × 926 mm / 52.99 × 13.66 × 36.46 inches
(with the key cover opened)
Weight 35 kg / 77.16 lbs. (including Stand)
Included Items
AC adapter, Power cord, Stand with Speaker Box &
Pedal unit, Owner's Manual.
• Specifications and appearance are subject to change
without notice for improvement.
Stereo PCM System
), Stop ( ), Record ( ),
DC 24 V ( )
18 W