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Casio Celviano AP420ES1B - User Manual

Casio Celviano AP420ES1B
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AP420ES1B
ES
USER’S GUIDE
GUÍA DEL USUARIO
Please keep all information for future reference.
Guarde toda información para tener como referencia futura.
Safety Precautions
Before trying to use the piano, be sure to read
the separate “Safety Precautions”.
Precauciones de seguridad
Antes de intentar usar el piano, asegúrese de
leer las “Precauciones de seguridad” separadas.
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Table of Contents

Questions and Answers

  • N
    Nicholas TuckerJul 30, 2025
    Why does my Casio Electronic Keyboard take so long to turn on?
    • C
      chandlerjasonJul 30, 2025
      If it takes a long time to use your Casio Digital Piano after turning it on, it could be due to corrupted memory data from a data transfer operation interrupted the last time you turned off the piano. The piano will perform a memory format operation, which takes about 20 seconds. Wait until this is complete and avoid turning off the Digital Piano during data transfers with a computer.
  • U
    ujohnsonAug 4, 2025
    How to fix no sound on my Casio Electronic Keyboard?
    • T
      Theresa HansenAug 5, 2025
      If no sound is coming from your Casio Electronic Keyboard when you press a key, here's what to check: * Ensure the VOLUME controller isn't set to “MIN”; rotate it towards “MAX”. * Make sure nothing is plugged into the PHONES jacks; disconnect any headphones or adaptors. * Verify that MIDI Local control is turned on; if not, enable it.
  • J
    Jeffrey BaldwinAug 9, 2025
    What to do if my Casio Celviano AP420ES1B sounds strange?
    • J
      Joe ReidAug 9, 2025
      If your Casio Digital Piano sounds strange, and restarting doesn't help (for example, note intensity doesn't change with key pressure), the “Back up” feature might be enabled. Turn off “Back up”, then power the piano off and on again.
  • R
    Rhonda CarlsonAug 14, 2025
    Why is the pitch off on my Casio Celviano AP420ES1B?
    • L
      Laura BrownAug 14, 2025
      If the pitch of your Casio digital piano is off, here are some things to check: 1. The key setting might be something other than “0”. Change the key setting to “0”, or turn the digital piano off and then back on again. 2. The digital piano tuning might be incorrect. Adjust the digital piano tuning, or turn the digital piano off and then back on again. 3. Octave shift might be enabled. Change the octave shift setting to 0. 4. A non-standard temperament setting might be used. Change the temperament setting to “00: Equal”, which is the standard modern tuning.
  • C
    Cindy IngramAug 19, 2025
    How to fix data transfer issues on Casio Electronic Keyboard?
    • T
      Taylor AlexanderAug 19, 2025
      To fix this, ensure the USB cable is correctly connected to both your Casio digital piano and your computer. Also, verify that you've selected the correct device within your computer's music software. If the issue persists, turn off the digital piano and exit the music software. Then, turn the piano back on and restart the software.
  • S
    Samuel RodriguezAug 25, 2025
    What to do if the pedal doesn't work on my Casio Celviano AP420ES1B Electronic Keyboard?
    • J
      Jasmine GarciaAug 25, 2025
      If nothing happens when you press a pedal on your Casio Electronic Keyboard, make sure the pedal unit cable is properly connected.

Summary

Safety Precautions

Important Safety Instructions

Essential safety guidelines to prevent fire or electric shock.

Device Compliance and Notes

Includes NOTICE, FCC Warning, Declaration of Conformity, and Important notes.

Playing with Different Tones

Selecting and Playing Tones

Guide to choosing and playing the 16 built-in tones.

Using Effects

Using the Metronome

How to use the built-in metronome for practice.

Recording and Play Back

Recording Data Storage

Recording to Tracks

Step-by-step guide to record on specific tracks.

Deleting Recorded Data

Configuring Settings with the Keyboard

Parameter List: Tones

Details of tone parameters like Reverb, Brilliance, etc.

Parameter List: Song;Metronome

Parameter List: Keyboard

Connecting to a Computer

Minimum Computer System Requirements

Connecting the Digital Piano to Your Computer

Step-by-step instructions for USB connection.

Transferring Song Data

Getting Ready

Assembling the Stand

Detailed instructions for assembling the piano stand.

Connecting Cables and Power

Connecting Audio Equipment

Reference

Troubleshooting

Common issues and their solutions.

Product Specifications

Technical details and features of the digital piano.

Operating Precautions

Important guidelines for safe and proper use.

AC Adaptor Handling Precautions

Safety measures for the power adaptor.

MIDI Implementation Chart

Casio Celviano AP420ES1B Specifications

General IconGeneral
TypeDigital Piano
Number of Keys88
Touch Response3 sensitivity levels, Off
Polyphony128 notes
MetronomeYes
Duet ModeYes
Amplifier Output20W + 20W
Power Consumption18W
Tones16
EffectsReverb (4 types), Chorus (4 types)
PedalsDamper, Soft, Sostenuto
Speakers12 cm x 2
TerminalsHeadphones x 2
Lesson FunctionYes
TransposeYes
TuningYes
Power SupplyAC adaptor
Included AccessoriesAC adaptor, Music stand

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