Yamaha CVP-94 Reference Manual - Page 7

Troubleshooting

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Troubleshooting Problem Cause Solution The power of the CVP-94/92 does not turn on. The power cable plugs are not inserted either in the CVP-94/92 or a proper AC outlet. Securely insert one of the cable plugs into the instrument itself, and the other plug into a proper AC outlet. A click or pop sound is produced when turning on/off the power. Electrical current is flowing into the This is normal, and is no cause for instrument. concern. The LCD display is too bright or too dark to read. The brightness may be changed by the surrounding temperature. Adjust the contrast of the display by using the [CONTRAST] control. (See page 15 in the Owner's Manual.) The pop-up display does not open. The [DISPLAY HOLD] lamp is lit. Press the [DISPLAY HOLD] button so that the lamp goes out. (See page 14 in the Owner's Manual.) The keyboard sound volume is low compared to that of the Auto Accompaniment or disk playback. The independent volume level of the keyboard performance sound is too low. Raise the volume of the keyboard performance in the Mixer display. (See page 82 in the Owner's Manual.) The sound of the Auto Accompaniment or disk playback is low compared to that of the keyboard. The [ACMP/SONG VOLUME] is low. Raise the [ACMP/SONG VOLUME] level. The entire sound is low or no sound The [MASTER VOLUME] is low. comes out. Headphones are connected. Raise the [MASTER VOLUME]. Unplug the headphones. Local Control is set to off. Set Local Control to on. (See page 128 in the Owner's Manual.) The damper pedal has no effect, or the sound continuously sustains even when the damper pedal is not pressed. The pedal cord plug is not connected. Securely insert the pedal cord plug into the proper jack. (See pages 34 and 40 in this Manual.) Auto Accompaniment or disk play- MIDI Sync is set to "EXT.". back does not start. Set MIDI Sync to "INT.". (See page 129 in the Owner's Manual.) When the keyboard is played, not all of the notes sound. Notes have been played beyond the total simultaneous polyphonic capacity (maximum number of notes). The tone generation system is configured such that later notes have priority, occasionally resulting in previous notes being cut off. See the "Specifications" section on page 31 in this Manual for information on the simultaneous polyphonic capacity. Auto Accompaniment does not play Auto Accompaniment is not turned back. on. Press the [ACMP ON] button to turn on Auto Accompaniment. 6

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Troubleshooting
Problem
The power of the CVP-94/92 does
not turn on.
A click or pop sound is produced
when turning on/off the power.
The LCD display is too bright or
too dark to read.
The pop-up display does not open.
The keyboard sound volume is low
compared to that of the Auto Ac-
companiment or disk playback.
The sound of the Auto Accompani-
ment or disk playback is low com-
pared to that of the keyboard.
The entire sound is low or no sound
comes out.
The damper pedal has no effect, or
the sound continuously sustains
even when the damper pedal is not
pressed.
Auto Accompaniment or disk play-
back does not start.
When the keyboard is played, not
all of the notes sound.
Auto Accompaniment does not play
back.
Solution
Securely insert one of the cable
plugs into the instrument itself, and
the other plug into a proper AC
outlet.
This is normal, and is no cause for
concern.
Adjust the contrast of the display by
using the
[CONTRAST]
control.
(See
page 15 in the Owner’s Manual.)
Press the
[DISPLAY HOLD]
but-
ton so that the lamp goes out.
(See
page 14 in the Owner’s Manual.)
Raise the volume of the keyboard per-
formance in the Mixer display.
(See
page 82 in the Owner’s Manual.)
Raise the
[ACMP/SONG VOL-
UME]
level.
Raise the
[MASTER VOLUME]
.
Unplug the headphones.
Set Local Control to on.
(See page
128 in the Owner’s Manual.)
Securely insert the pedal cord plug
into the proper jack.
(See pages 34
and 40 in this Manual.)
Set MIDI Sync to “INT.”.
(See
page 129 in the Owner’s Manual.)
The tone generation system is
configured such that later notes
have priority, occasionally resulting
in previous notes being cut off.
See
the “Specifications” section on page
31 in this Manual for information
on the simultaneous polyphonic
capacity.
Press the
[ACMP ON]
button to
turn on Auto Accompaniment.
Cause
The power cable plugs are not in-
serted either in the CVP-94/92 or a
proper AC outlet.
Electrical current is flowing into the
instrument.
The brightness may be changed by
the surrounding temperature.
The
[DISPLAY HOLD]
lamp is lit.
The independent volume level of the
keyboard performance sound is too
low.
The
[ACMP/SONG VOLUME]
is
low.
The
[MASTER VOLUME]
is low.
Headphones are connected.
Local Control is set to off.
The pedal cord plug is not connected.
MIDI Sync is set to “EXT.”.
Notes have been played beyond the
total simultaneous polyphonic capac-
ity (maximum number of notes).
Auto Accompaniment is not turned
on.
6