Filter
Top Products
E-28
No sound when keyboard
keys are pressed.
No sound from the
microphone.
1. Power supply problem.
2. Main volume is set to 0.
3. Headphones are plugged
into the keyboard.
4.The accompaniment
keyboard does not play
notes while CASIO
CHORD or FINGERED is
selected as the
accompaniment mode.
5. Some keys are not assigned
any sounds while “49
PERCUSSION” is selected
as the tone.
6. Playing the keyboard does
not produce any sound
during playback of a Song
Bank tune or demo tune.
1. Microphone is not plugged
into the keyboard correctly.
2. Microphone is turned off.
1.Correctly attach the AC
adaptor, make sure that
batteries poles (+/–) are
facing correctly, and check
to make sure that batteries
are not dead.
2.Press the VOLUME [̆]
button.
3.Unplug the headphones
from the PHONES/
OUTPUT jack.
4. Change to the NORMAL
accompaniment mode.
5. Only keyboard keys in the
range of C3 through D5
(the ones marked with
percussion instrument
illustrations) produce
sounds while “49
PERCUSSION” is selected
as the tone.
6.Stop Song Bank tune or
demo tune playback.
1.Correctly plug the
microphone into the
keyboard.
2. Turn on the microphone.
Problem Possible Cause Action
Pages
E-10, 11
Page E-13
Page E-12
Page E-18
Page E-17
Pages
E-13, 22
Pages
E-14, 15
Page E-16
See
278A-E-030A
Troubleshooting
MA-170_E28-31.p65 03.10.8, 0:39 PM28