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E-75
Problem
No sound when keyboard keys
are pressed.
Any of the following symptoms
while using battery power.
• Dim power supply indicator
• Instrument does not turn on
• Display that is fllckering,
dim, or difficult to read
• Abnormally low speaker/
headphone volume
• Distortion of sound output
• Occasional interruption of
sound when playing at high
volumes
• Sudden power failure when
playing at high volumes
• Flickering or dimming of the
dispaly when playing at high
volume
• Continued sound output
even after you release a key
• A totally different tone may
sound
• Abnormal rhythm pattern
and demo tune play
• Loss of power, sound distor-
tion, or low volume when
playing from a connected
computer or MIDI device
• Sudden power failure while
reading from or writing to a
diskette (WK-1800 only)
Auto Accompaniment does not
sound.
Sound output does not change
when key pressure is varied.
The key or tuning does not
match when playing along with
another MIDI machine.
Possible Cause
1. Batteries are not loaded correctly.
2. Power is not turned on.
3. MAIN VOLUME setting is too low.
4. Playing in the accompaniment key-
board area while the MODE button
setting is CASIO CHORD or FIN-
GERED.
5. LOCAL CONTROL is off.
6. Mixer Channel 1 is off.
7. Mixer Channel 1 volume or expres-
sion setting is too low.
Low battery power
1. Accompaniment volume is set to
000.
2. Auto Accompaniment part Chan-
nels 6 through 10 are turned off.
3. Auto Accompaniment part Chan-
nels 6 through 10 volume or expres-
sion setting is too low.
Touch response is turned off.
The tuning or transpose parameter is
set to a value other than 00.
Action
1. Check to make sure the AC adaptor
is connected correctly, and that the
+/– ends of the batteries are facing
correctly. Check for dead batteries.
2. Press the POWER button to turn on
power.
3. Use the MAIN VOLUME slider to
increase volume.
4. None of the accompaniment mode
indicators are lit, which means Auto
Accompaniment is turned off.
5. Turn LOCAL CONTROL on.
6. Turn on Mixer Channel 1.
7. Use the Mixer to raise the volume
or expression setting for channel 1.
Replace the batteries with a set of new
ones or use the AC adaptor.
1. Use the CH5 (ACC VOL.) button to
increase the volume.
2. Use the Mixer to turn the channels
on.
3. Use the Mixer to raise the volume
or expression setting for the appli-
cable channel.
Press the TOUCH RESPONSE button
to turn it on.
Change the transpose or tuning param-
eter value to 00.
733A-E-077A
Troubleshooting
See page
Page E-14
Page E-16
Page E-16
Page E-21
Page E-61
Page E-29
Page E-30
Page E-14
Page E-27
Page E-29
Page E-30
Page E-18
Page E-19
WK-1800/1600(E)-75~78 03.7.31, 5:22 PMPage 75 Adobe PageMaker 6.5J/PPC