Casio CTK-3500 User Manual page 27

Symptom
Some notes are cut off while they are playing.
The volume or tone setting I made has changed.
Output volume does not change even though is
change my keyboard touch.
In certain keyboard ranges, the volume and tone
quality sound are slightly different from those in
other keyboard ranges.
With some tones, octaves do not change at the far
ends of the keyboard.
The pitch of the notes does not match other
accompanying instruments or sounds strange when
played long with other instruments.
The reverb of notes seems to change suddenly.
Operation
When I perform a skip forward or skip back
operation, the skip operation moves multiple song
measures instead of only a single measure.
APP function data transfer failed.
Computer Connection
I can't exchange data between the Digital Keyboard
and a computer.
Action
Notes are cut off whenever the number of notes being sounded
exceeds the maximum polyphony value of 48 (24 for some tones).
This does not indicate malfunction.
• Adjust the main volume setting (page EN-8).
• Turn power off and then back on to initialize all Digital Keyboard
settings (page EN-8).
• Replace the batteries with new ones or switch over to AC adaptor
power (page EN-7).
• Change the Touch Response setting (page EN-4).
• Turn power off and then back on to initialize all Digital Keyboard
settings (page EN-8).
This is due to system limitations. It does not indicate malfunction.
This is due to system limitations. It does not indicate malfunction.
• Check and adjust the transpose (page EN-4) and tuning settings
(page EN-4).
• Turn power off and then back on to initialize all Digital Keyboard
settings (page EN-8).
• Check and adjust the reverb setting (page EN-4).
• Turn power off and then back on to initialize all Digital Keyboard
settings (page EN-8).
While song playback is stopped or a Step Up Lesson is in progress,
skip forward and skip back operations are performed in phrase units
(page EN-13).
Look up the meaning of the error message (page EN-21) and take the
appropriate corrective steps.
• Check to make sure that the USB cable is connected to the Digital
Keyboard and computer, and that the device is selected correctly
with your computer's music software settings (page EN-22).
• Turn off the Digital Keyboard and then exit the music software on
your computer. Next, turn the Digital Keyboard back on and then
restart the music software on your computer.
Reference
EN-25