1. Uvod
The Casio CTK-240 is a slim and easy-to-use 49-key electric keyboard designed for beginners and enthusiasts. This manual provides essential information for setting up, operating, maintaining, and troubleshooting your keyboard, ensuring a smooth and enjoyable musical experience.

Image 1.1: The Casio CTK-240 keyboard, shown with its power adapter and a songbook.
2. Ključne karakteristike
- 49 Standard Keys: Provides a comfortable playing surface for learning and practice.
- 100 Built-in Tones: A wide variety of instrument sounds to explore.
- 100 ritma: Diverse rhythmic patterns for accompaniment across various genres.
- 50 Built-in Songs: Includes a song bank with 50 pre-loaded songs for practice and enjoyment.
- Funkcija lekcije: Features a melody ON/OFF function, allowing users to practice the melody portion of built-in songs.
- Automatic Accompaniment: Enables playing with varied rhythmic backing.
- LCD ekran: Clearly shows information such as tone, rhythm, song name, chord, tempo, beat, and melody ON/OFF status.
- Dvostruki zvučnici: Integrated speakers for clear audio output.
- Priključak za slušalice (3.5 mm): For private practice.
- Fleksibilne opcije napajanja: Može se napajati preko AC adaptera ili baterija za prenosivost.

Slika 2.1: Detaljno view of the keyboard's control panel, highlighting the LCD display and various function buttons for tones, rhythms, and songs.
3. Podešavanje
- Napajanje:
- AC adapter: Connect a compatible AC adapter (not included) to the DC 9.5V terminal on the rear of the keyboard and plug it into a standard wall outlet.
- baterije: Open the battery compartment cover on the underside of the keyboard. Insert six AA-size alkaline batteries, ensuring correct polarity (+/-). Close the cover securely.
- Muzički stalak: Attach the included music stand to the designated slots on the top panel of the keyboard.
- Slušalice (opciono): For private practice, plug 3.5mm stereo headphones into the PHONES/OUTPUT jack located on the rear of the keyboard.

Image 3.1: The underside of the keyboard, illustrating the battery compartment and overall dimensions for placement.
4. Uputstvo za upotrebu
- Uključivanje/isključivanje: Pritisnite POWER dugme za uključivanje ili isključivanje tastature.
- Podešavanje jačine zvuka: Koristite VOLUME klizač za podešavanje ukupnog nivoa zvuka.
- Odabir tonova: Pritisnite TONE button, then use the number buttons or +/- buttons to select from 100 different instrument tones. The selected tone will be displayed on the LCD.
- Odabir ritmova: Pritisnite RHITAM button, then use the number buttons or +/- buttons to select from 100 rhythmic patterns. Press START/STOP za početak ili završetak ritma.
- Reprodukcija ugrađenih pjesama: Pritisnite PJESMA button, then use the number buttons or +/- buttons to select one of the 50 built-in songs. Press START/STOP to play the song.
- Funkcija lekcije: While a built-in song is playing, use the MELODIJA UKLJUČENA/ISKLJUČENA button to mute or unmute the melody part, allowing you to play along.
- Automatic Accompaniment: When a rhythm is selected, the keyboard can provide automatic chord accompaniment based on the notes you play.
- Podešavanje tempa: Koristite TEMPO +/- buttons to increase or decrease the speed of rhythms or songs.

Image 4.1: A child engaging with the Casio CTK-240, highlighting its user-friendly design and suitability for young learners.

Slika 4.2: Detaljan view of the keyboard's controls, specifically showing the 'Self Learning' feature and melody ON/OFF button for interactive lessons.

Image 4.3: The keyboard's display area, showing a list of the 50 built-in songs and 100 rhythms available for selection.
5. Održavanje
- čišćenje: Obrišite tastaturu mekom, suhom krpom. Za tvrdokornu prljavštinu koristite blago suhu krpu.amp krpom i zatim dobro osušite. Izbjegavajte abrazivna sredstva za čišćenje ili rastvarače.
- Skladištenje: Tastaturu čuvajte na hladnom i suhom mjestu, dalje od direktne sunčeve svjetlosti, ekstremnih temperatura i visoke vlažnosti.
- Održavanje baterije: If not using the keyboard for an extended period, remove the batteries to prevent leakage and damage.
- Rukovanje: Izbjegavajte ispuštanje tastature ili izlaganje jakim udarcima.
6. Otkrivanje problema
- Nema napajanja:
- Ensure the AC adapter is securely connected to both the keyboard and a working power outlet.
- If using batteries, check that they are inserted correctly and are not depleted. Replace with fresh batteries if necessary.
- Nema zvuka:
- Check the volume level. Increase it using the VOLUME slider.
- If headphones are connected, sound will only come through the headphones. Disconnect them to hear sound from the built-in speakers.
- Ensure a tone is selected and not set to a silent instrument.
- Tipke ne reagiraju:
- Isključite tastaturu, a zatim je ponovo uključite.
- Pazite da između tipki nema stranih predmeta.
7. Specifikacije
| Feature | Detalj |
|---|---|
| Naziv modela | CTK-240 |
| Broj ključeva | 49 |
| Težina artikla | 6.16 funti (2.8 kilograma) |
| Dimenzije proizvoda | 9.33 x 2.95 x 35.98 inča |
| Izvor napajanja | Electric (AC adapter) or Battery (6x AA) |
| Tip konektora | 3.5mm Jack (Headphones) |
| Vrsta materijala | Plastika |
| Output Wattage | 1.6 Watts |
| Nivo vještina | Pocetnik |
8. Garancija i podrška
For warranty information or technical support, please refer to the documentation included with your product or visit the official Casio webstranica. Također se možete direktno obratiti korisničkoj službi Casio za pomoć.





