Einführung
This manual provides essential instructions for the proper setup, operation, and maintenance of your Casio CTK-720 61 Key Musical Keyboard. Please read this manual thoroughly before using the instrument to ensure optimal performance and longevity.
The Casio CTK-720 is a portable electronic keyboard featuring 61 standard-size keys, 242 tones, 100 rhythm patterns, and a 32-note polyphony. It is designed for beginner to intermediate skill levels.

Image: Casio CTK-720 61 Key Musical Keyboard overview.
Aufstellen
Auspacken und Aufstellen
Carefully remove the keyboard from its packaging. Place the keyboard on a stable, flat surface. Ensure adequate ventilation around the instrument.
Stromversorgung
The Casio CTK-720 can be powered using an optional AD-5 AC power adapter. Connect the adapter to the DC 9V input jack on the rear of the keyboard and then plug it into a standard wall outlet.

Image: Rear panel connections including DC 9V power input.
Ensure the keyboard is turned off before connecting or disconnecting the power adapter.
Anschließen von Peripheriegeräten
The CTK-720 offers various connection options for external devices:
- Kopfhörer: Connect 3.5mm stereo headphones to the PHONES/OUTPUT jack for private practice.
- Sustain-Pedal: An optional sustain pedal can be connected to the SUSTAIN jack for enhanced expression.
- USB: The USB port allows connection to a computer for MIDI data transfer.

Bild: Überview of rear panel ports.

Image: USB port for computer connectivity.
Bedienungsanleitung
Ein- / Ausschalten und Lautstärkeregelung
- To turn on the keyboard, slide the POWER-MODUS Schalten Sie auf die Position „EIN“.
- Passen Sie die Gesamtlautstärke mit dem/der/dem … an. HAUPTVOLUMEN slider. Slide it up to increase volume and down to decrease.
- To turn off the keyboard, slide the POWER-MODUS In die Position „AUS“ schalten.

Image: Power switch and main volume control.
Auswählen von Tönen
The CTK-720 features 242 built-in tones, including 113 panel tones, 128 General MIDI tones, and 1 drum set. To select a tone:
- Drücken Sie die TON Taste.
- Verwenden Sie den Ziffernblock oder den + Und - buttons to enter the desired tone number. The selected tone will be displayed on the LCD screen.

Image: LCD display and tone selection area.
Using Rhythms
The keyboard includes 100 rhythm patterns to accompany your playing. To select and start a rhythm:
- Drücken Sie die RHYTHMUS Taste.
- Verwenden Sie den Ziffernblock oder den + Und - buttons to select a rhythm.
- Drücken Sie die START/STOP button to begin or end the rhythm.
- Passen Sie das Rhythmustempo mit dem/der/dem TEMPO Schaltflächen.
Lesson Function
The CTK-720 features a 3-Step Lesson system to help you learn songs. Refer to the display for lesson progress and guidance.
- Drücken Sie die Songbank button to select a song.
- Verwenden Sie die 3-STEP LESSON buttons (Step 1, Step 2, Step 3) to engage the lesson mode.
Wartung
Reinigung
Wischen Sie die Oberfläche der Tastatur mit einem weichen, trockenen Tuch ab. Bei hartnäckigem Schmutz verwenden Sie ein leicht feuchtes Tuch.ampened with water and a mild detergent, then wipe dry immediately. Avoid using abrasive cleaners, solvents, or polishes, as these can damage the finish.
Lagerung
When not in use for extended periods, store the keyboard in a cool, dry place away from direct sunlight and extreme temperatures. Cover the keyboard to protect it from dust.
Fehlerbehebung
| Problem | Mögliche Ursache | Lösung |
|---|---|---|
| Kein Ton |
|
|
| Tasten reagieren nicht |
|
|
| Rhythmus spielt nicht |
|
|
Technische Daten
- Modell: CTK-720
- Tasten: 61 Standard-size keys, 5 octaves
- Töne: 242 (113 panel tones, 128 General MIDI Tones, 1 drum set)
- Polyfonie: 32 notes maximum (16 for certain tones)
- Rhythmusmuster: 100
- Unterrichtsfunktion: 3-Step Lesson System
- Konnektivität: DC 9V power input, Sustain pedal input, 3.5mm Headphones/Output jack, USB (MIDI)
- Energiequelle: AC power adapter (optional AD-5)
- Schwierigkeitsgrad: Anfänger bis Fortgeschrittene
- Marke: Casio