Casio CTK-230 User Manual (English)

Questions and Answers:

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collinskimberlyJul 25, 2025
What to do if my Casio Electronic Keyboard has no sound?
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  Emily SmithJul 26, 2025
  If your Casio Electronic Keyboard isn't producing any sound, there might be a few reasons. First, ensure the AC adapter is correctly attached, the batteries are properly inserted with the correct polarity (+/–), and that the batteries aren't dead. Also, check that the POWER/MODE switch is set to the NORMAL position and not CASIO CHORD or FINGERED. Finally, the volume might be too low, so use the MAIN VOLUME buttons to increase it.
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Jeremy CarrAug 1, 2025
What to do if Casio Electronic Keyboard auto accompaniment does not sound?
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  Chad RojasAug 1, 2025
  If the auto accompaniment on your Casio Electronic Keyboard isn't working, the auto accompaniment volume might be set to 0. To fix this, use the ACCOMP VOLUME button to increase the volume.
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eramosAug 6, 2025
Why does my Casio Electronic Keyboard have sound issues when using batteries?
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  brandonmckenzieAug 6, 2025
  If you are experiencing a dim power indicator, the instrument doesn't turn on, the display is flickering, dim, or hard to read, abnormally low speaker/headphone volume, distortion of sound output, occasional interruption of sound when playing at high volume, sudden power failure when playing at high volume, flickering or dimming of the display when playing at high volume, continued sound output even after you release a key, a tone that is totally different from the one that is selected, or abnormal rhythm pattern and Song Bank play on your Casio Electronic Keyboard while using battery power, it likely means the batteries are low. Replace them with a fresh set or use the AC adapter.
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Christopher McmillanAug 13, 2025
How to fix key or tuning mismatch on Casio Electronic Keyboard?
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  Christine LopezAug 13, 2025
  If the key or tuning doesn't match when playing your Casio Electronic Keyboard along with another instrument, it might be because the tuning or transpose parameter is set to a value other than 0 or 00. To resolve this, change the transpose or tuning parameter value to 0 or 00.
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Vickie EdwardsAug 18, 2025
What to do if a Song Bank tune is missing on Casio Electronic Keyboard?
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  Kara ThorntonAug 19, 2025
  If a Song Bank tune is missing on your Casio Electronic Keyboard, the melody part may be turned off. Press the MELODY ON/OFF button to turn the melody part on.