Casio PS-20 - Manual (Page 28)

E-26
424A-E-028A
Troubleshooting
Symptom
No sound produced when keyboard
keys are pressed.
Keyboard out of tune.
No sound produced by demo tune
play.
Memory contents deleted.
No sound produced by connected
external MIDI sound source when
the digital piano keys are pressed.
Possible Cause
1. VOLUME knob set to MIN.
2. Headphones connected to the
digital piano.
3. Local Control turned off.
1. Transpose is set to a value other
than 0.
2. Incorrect tuning setting
1. VOLUME knob set to MIN.
2. Headphones connected to the
digital piano.
Lithium battery is dead.
1. The digital piano Keyboard
Channel does not match the
Keyboard Channel of the MIDI
sound source.
2. Volume or expression setting of
the external sound source is set to
0.
Action
1. Move the VOLUME knob more
towards MAX.
2. Disconnect the headphones from
the digital piano.
3. Turn on Local control.
1. Change the transpose setting to 0,
or turn the digital piano power off
and then back on again.
2. Correct the tuning setting, or turn
the digital piano power off and
then back on again.
1. Move the VOLUME knob more
towards MAX.
2. Disconnect the headphones from
the digital piano.
Contact your CASIO Service Provider
for replacement of the lithium battery.
1. Change the Keyboard Channel
settings so they are identical.
2. Change the volume or expression
setting of the external sound source
to an appropriate value.
Reference
Page E-12
Page E-11
Page E-24
Page E-20
Page E-21
Page E-12
Page E-11
Page E-28
Page E-23
See the
documenta-
tion that
comes with
the external
sound
source.
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