CTK691E01-01.book 83 ページ 2003年9月29日 月曜日 午後4時47分

Troubleshooting

ProblemPossible Cause

Action

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No keyboard Sound

1. Power supply problem.

1. Correctly attach the AC

E-14, 15

 

 

adaptor, make sure that

 

 

 

batteries poles (+/–) are facing

 

 

 

correctly, and check to make

 

 

 

sure that batteries are not dead.

 

 

2. Power is not turned on.

2. Press the POWER button to

E-19

 

 

turn on power.

 

 

3. Volume setting is too low.

3. Use the VOLUME knob to

E-19

 

 

increase volume.

 

 

4. Playing in the accompaniment

4. None of the accompaniment

E-31

 

keyboard area while the MODE

mode indicators are lit, which

 

 

button setting is CASIO CHORD or

means Auto Accompaniment is

 

 

FINGERED.

turned off.

 

 

5. Local Control is off.

5. Turn on Local Control.

E-75

 

6. Mixer channel 1 is turned off.

6. Use the Mixer to turn channel 1

E-40

 

 

on.

 

 

7. Mixer channel 1 volume setting is too

7. Use the Mixer to raise the

E-40, 41

 

low.

volume setting for channel 1.

 

 

 

 

 

Any of the following symptoms

Low battery power

Replace the batteries with a set of

E-14, 15

while using battery power.

 

new ones or use the AC adaptor.

 

Š Dim power indicator

 

 

 

Š Instrument does not turn on.

 

 

 

Š Display that is flickering, dim,

 

 

 

or difficult to read

 

 

 

Š Abnormally low speaker/

 

 

 

headphone volume

 

 

 

Š Distortion of sound output

 

 

 

Š Occasional interruption of sound

 

 

 

when playing at high volumes

 

 

 

Š Sudden power failure when

 

 

 

playing at high volumes

 

 

 

Š Flickering or dimming of the

 

 

 

display when playing at high

 

 

 

volume

 

 

 

Š Continued sound output even

 

 

 

after you release a key

 

 

 

Š A tone that is totally different

 

 

 

from the one that is selected.

 

 

 

Š Abnormal rhythm pattern and

 

 

 

demo tune play

 

 

 

Š Loss of power, sound distortion,

 

 

 

or low volume when playing

 

 

 

from a connected computer or

 

 

 

MIDI device

 

 

 

 

 

 

 

Auto Accompaniment does not

1. Accompaniment volume is set to 000.

1. Use the ACCOMP VOLUME

E-38

sound.

 

button to increase the volume.

 

 

2. Auto Accompaniment part Channels

2. Use the Mixer to turn the

E-40

 

6 through 10 are turned off.

channels on.

 

 

3. Auto Accompaniment part Channels 6

3. Use the Mixer to raise the volume

E-40, 41

 

through 10 volume setting is too low.

setting for the applicable channel.

 

 

 

 

 

Sound output does not change

Touch response is turned off.

Press the TRANSPOSE/FUNCTION

E-69

when key pressure is varied.

 

button to turn it on.

 

 

 

 

 

705A-E-085A

E-83