Casio CTK-591 - User Manual

Other manuals for Casio CTK-591

Service Manual28 pages

Questions and Answers

E
Edward MillerAug 16, 2025
How to troubleshoot no sound on Casio CTK-591?
- D
  Dr. Justin ShawAug 16, 2025
  If your Casio Electronic Keyboard produces no sound, several factors could be at play. First, ensure the AC adapter is correctly attached, batteries are properly installed with correct polarity (+/–) and are not depleted. Next, verify that the power is on. Also, the volume might be too low, so adjust it accordingly. If the MODE switch is set to CASIO CHORD or FINGERED, switch it to NORMAL. Ensure that LOCAL CONTROL is turned on, and adjust the VOLUME and EXPRESSION parameters if MIDI data has altered them.
U
udayAug 18, 2025
Why is there no auto accompaniment sound on my Casio Electronic Keyboard?
- G
  Gregory GeorgeAug 19, 2025
  If your Casio Electronic Keyboard's auto accompaniment isn't producing sound, it's likely that the accompaniment volume is set to 000. To resolve this, use the SETTING button to increase the volume.
M
mileschristopherAug 22, 2025
How to fix static noise with microphone on Casio CTK-591 Electronic Keyboard?
- C
  Cynthia BrownAug 22, 2025
  If you're experiencing static noise when a microphone is connected to your Casio Electronic Keyboard, it could be due to a couple of reasons. First, ensure you're using a full metal shielded Cannon type microphone, as recommended. Also, the microphone may be too close to fluorescent lighting. Try moving the microphone away from the source of the static.
J
Jacob RyanAug 25, 2025
Why do keys not match on Casio CTK-591 with MIDI instrument?
- J
  Jacob LeeAug 25, 2025
  If your Casio Electronic Keyboard keys or tunings don't match when playing with another MIDI instrument, the transpose or tuning is likely set to a value other than 00. Use the SETTING button to access the applicable setting screens and set both transpose and tuning to 00.
K
Kimberly MillerAug 28, 2025
What to do if key pressure doesn't change sound on Casio CTK-591 Electronic Keyboard?
- K
  Karen MartinezAug 28, 2025
  If you're playing your Casio Electronic Keyboard and the sound output doesn't change when you vary key pressure, it means that the touch response is turned off. To fix this, press the SETTING button to turn it on.
D
Dr. Carla Taylor DDSAug 30, 2025
Why is my Casio Electronic Keyboard malfunctioning on battery power?
- M
  Mark WilliamsAug 31, 2025
  If you're experiencing issues like a dim power supply indicator, the instrument not turning on, a dim display, low volume, sound distortion, or sudden power failures while using battery power on your Casio Electronic Keyboard, it indicates low battery power. Replace the batteries with a new set or use the AC adapter.
K
Kristina HarrisSep 2, 2025
Why do keyboard guide keys stay on Casio Electronic Keyboard?
- M
  Mark NelsonSep 3, 2025
  If the on-screen keyboard guide keys stay lit on your Casio Electronic Keyboard, it means the keyboard is waiting for you to play the correct note during Step 1 or Step 2 play. Press the lit key to continue or press the PLAY/STOP button to quit Step 1 or Step 2 play.
B
Bridget MayoSep 6, 2025
Why do MIDI notes not match on Casio Electronic Keyboard?
- E
  Ebony DuffySep 6, 2025
  If you are playing General MIDI data with a computer and the playback notes do not match those produced when the lit keys on the on-screen keyboard guide are pressed on your Casio Electronic Keyboard, the SOUND RANGE SHIFT setting is incorrect. Use the SETTING button to display the SOUND RANGE SHIFT screen and correct the setting.
C
Caroline HermanSep 8, 2025
How to stop unnatural sound on Casio Electronic Keyboard connected to computer?
- N
  nicolealexanderSep 8, 2025
  If you're experiencing an unnatural sound when playing your Casio Electronic Keyboard connected to a computer, the computer’s MIDI THRU function is likely turned on. Turn off the MIDI THRU function on the computer or turn off LOCAL CONTROL on the keyboard.
V
Vernon DavisSep 12, 2025
Why is there no microphone sound on Casio Electronic Keyboard?
- F
  Frank DavisSep 12, 2025
  If there's no sound from the microphone connected to your Casio Electronic Keyboard, make sure the microphone volume isn't set too low and that the microphone on/off switch is set to ON. Increase the microphone volume and switch the microphone to the ON position.

Summary

Safety Precautions

Handling Battery and Product Hazards

General Product Safety Guidelines

Covers plastic bags, climbing, location, cleaning, and connector safety precautions.

Specific Operational Safety

Covers display, volume, heavy objects, and correct stand assembly safety.

Main Features

Core Keyboard Capabilities

Advanced Features and Connectivity

Covers musical info system, song memory, and MIDI compatibility.

Power Supply

Battery Usage and Information

Loading, life, and low battery symptoms.

Battery Safety Warnings

Critical warnings regarding battery misuse.

AC Adaptor Usage and Safety

Connecting, warnings, and cautions for AC adaptor.

Auto Power Off Feature

Operation and disabling the auto power off feature.

Connections

Audio, MIDI, and Pedal Connectivity

Microphone Jack and Accessories

Advanced 3-Step Lesson

Lesson Steps and Display Information

Lesson Performance Evaluation

Covers Evaluation Mode, voice guide, and evaluation results.

Step 1 Scoring and Step 2 Note Mastery

Evaluation for Step 1 and mastering notes for Step 2.

Step 3 Playback, Phrase Practice, and Metronome

Covers Step 3 playback, phrase practice, and metronome usage.

Voice Fingering Guide Operation

Using a Microphone for Sing Along

Microphone Connection and Specifications

Noise Prevention and Feedback Avoidance

Microphone Sing Along Procedure

Steps for using the microphone with the keyboard.

Auto Accompaniment

How Auto Accompaniment Works

Selecting and Playing Rhythms

Steps for choosing and starting rhythm patterns.

Tempo Adjustment and Auto Accompaniment Usage

CASIO CHORD Mode

Explanation and chord types for CASIO CHORD mode.

FINGERED and FULL RANGE CHORD Modes

Explanation and chord types for FINGERED and FULL RANGE CHORD.

Using Intro Patterns

Fill-in Patterns and Rhythm Variations

Synchro Start Accompaniment

Ending Patterns and One-Touch Presets

Song Memory Function

Real-time Recording to Track 1

Steps for recording melody and accompaniment to Track 1.

Song Memory Recording Variations

Playing Back Recorded Songs

Steps to play back recorded song memory contents.

Real-time Recording to Track 2

Steps for recording melody to Track 2.

Recording to Track 2 Without Playback

Deleting Specific Track Data

Keyboard Settings

Layering and Splitting Tones

Splitting the Keyboard and Layer;Split Combination

Transposing the Keyboard

How to raise or lower the overall key of the keyboard.

Touch Response and Accompaniment Volume

Tuning the Keyboard

Procedure for fine-tuning the keyboard's pitch.

MIDI

MIDI Fundamentals and Connections

MIDI Channels and General MIDI Standard

Explanation of MIDI channels and the General MIDI standard.

Keyboard and Navigate Channel Configuration

GM Mode and Local Control Settings

MIDI Out for Accompaniment and Assignable Jack Functions

MIDI Messages and Sound Range Shift

Program Change, Pitch Bend, and Control Change Messages

Troubleshooting

Common Sound and Power Issues

Troubleshooting steps for sound output and power problems.

Comprehensive Troubleshooting Solutions

Solutions for MIDI, computer, microphone, and other common issues.

Specifications

Keyboard, Accompaniment, and MIDI Specs

Power, Speaker, Dimensions, and Weight

Care of your keyboard

Environmental Care and Cleaning

Handling Interference and Case Notes

MIDI Implementation Chart

MIDI Transmitted and Recognized Functions

MIDI Control Messages

Casio CTK-591 Specifications

General

Number of Keys	61
Rhythms	100
MIDI	Yes
Power Supply	9V DC
Keyboard	Standard
Display	LCD
Polyphony	12 notes
Terminals	MIDI
Effects	Reverb
Auto Accompaniment	CAS (Casio Auto-Accompaniment System)