1. Introducció
This manual provides essential information for the setup, operation, and maintenance of your RockJam 49 Key USB Keyboard Piano, Model RJ490BB. Designed for beginners and intermediate players, this compact digital piano offers a wide range of features to enhance your musical journey. It includes 200 tones, 200 rhythms, 50 demo tracks, and convenient record and playback functionality. With versatile connectivity options and integrated learning tools, the RockJam RJ490BB is an ideal instrument for exploring music.

Figura 1: Frontal view of the RockJam 49 Key USB Keyboard Piano.
2. Contingut del paquet
Si us plau, assegureu-vos que tots els elements estiguin presents al paquet:
- RockJam 49 Key USB Keyboard Piano (Model RJ490BB)
- Descans musical
- Cable d'alimentació USB
- Piano Note Stickers
- Manual d'instruccions (aquest document)
3. Configuració
3.1 Engegar el teclat
The keyboard can be powered in two ways:
- Potència USB: Connect the provided USB cable to the DC 5V-2A port on the back of the keyboard and to a compatible USB power adapter (not included) or a computer's USB port.
- Potència de la bateria: Insert 4 x AA batteries (not included) into the battery compartment on the underside of the keyboard. Ensure correct polarity.
3.2 Fixació del pentagrama
Locate the slots on the top panel of the keyboard. Insert the music rest into these slots until it is securely in place. This provides a stable platform for sheet music or a tablet.
3.3 Applying Keynote Stickers
For beginners, the included piano note stickers can be applied to the white keys to help identify notes. Carefully peel each sticker and align it with the corresponding key, ensuring it adheres smoothly. These stickers are designed to be removable.
4. Instruccions de funcionament
4.1 Encès/Apagat
Premeu el botó PODER button located on the top left of the control panel to turn the keyboard on or off.
4.2 Control de volum
Gira el gran VOLUM knob to adjust the master volume of the keyboard.

Figure 2: Power button and Volume knob.
4.3 Selecting Tones
The keyboard features 200 different tones. To select a tone:
- Premeu el botó TO botó.
- Use the number pad (0-9) or the '+' and '-' buttons to enter the desired tone number. The selected tone number will appear on the digital display.
Refer to the tone list printed on the keyboard for available options, including Piano, Organ, Guitar, Bass, Strings, Brass, Synth, and various Sound Effects.

Figure 3: Tone and Rhythm selection lists.
4.4 Selecció de ritmes
The keyboard includes 200 rhythms. To select a rhythm:
- Premeu el botó RITME botó.
- Use the number pad (0-9) or the '+' and '-' buttons to enter the desired rhythm number.
- Premeu INICI/PARA per començar o acabar el ritme.
Available rhythms include Pop, Dance, Samba, Tango, Country, and various traditional styles.
4.5 Ajust de tempo
While a rhythm or demo song is playing, use the TEMPO '+' and '-' buttons to increase or decrease the playback speed.

Figure 4: Tempo and Sync controls.
4.6 cançons de demostració
The keyboard has 50 pre-recorded demo songs. Press the DEMO button to cycle through and play the demo songs. Press INICI/PARA per aturar la reproducció.
4.7 Gravació i reproducció
Per enregistrar la teva actuació:
- Premeu el botó REC button. The display will indicate recording mode.
- Play your desired melody on the keys.
- Premeu JUGAR to listen to your recorded performance.
4.8 Effects (Sustain, Vibrato)
Activa el SOSTENIR button to prolong the sound of notes. Press the VIBRAT button to add a wavering effect to the notes.
4.9 Percussió
Utilitzeu el dedicat PERCUSSIÓ buttons to add drum and percussion sounds to your playing.

Figure 5: Control panel with tone, rhythm, and effect buttons.
5. Connectivitat
The RockJam RJ490BB offers several ports for enhanced functionality:
- Presa d'auriculars (3.5 mm): Connect headphones for private practice without disturbing others.
- Entrada auxiliar (3.5 mm): Connect an external audio device (e.g., smartphone, MP3 player) to play along with your favorite songs.
- Microphone Input (3.5mm): Connect a microphone (not included) to sing along while playing.
- Port USB: Connect the keyboard to a computer for MIDI functionality, allowing use with music software.

Figure 6: Rear panel with USB, Mic, Aux, and Phones jacks.
6. Learning Resources
Your RockJam keyboard includes access to exclusive content designed to aid your learning:
- Simply Piano App: Unlock exclusive content from the Simply Piano IOS and Android application. This app provides interactive lessons, helping you learn fundamental piano techniques and play popular songs. Follow the instructions provided with your product to redeem your access.
- Keynote Stickers: As mentioned in the Setup section, these stickers are a visual aid for identifying notes on the keys, making it easier to follow sheet music and learn scales.
7. Manteniment
Proper care will ensure the longevity of your keyboard:
- Neteja: Use a soft, dry cloth to wipe the surface of the keyboard. Avoid using abrasive cleaners, solvents, or waxes, as these can damage the finish.
- Emmagatzematge: Guardeu el teclat en un lloc fresc i sec, allunyat de la llum solar directa, de temperatures extremes i d'alta humitat.
- Cura de la bateria: If using batteries, remove them if the keyboard will not be used for an extended period to prevent leakage and damage.
- Manipulació: Eviteu deixar caure el teclat ni sotmetre'l a impactes forts.
8. Solució De Problemes
Si teniu problemes amb el teclat, consulteu les solucions habituals següents:
- Sense so:
- Comproveu el nivell de volum.
- Ensure headphones are not plugged in if you intend to use the built-in speakers.
- Verify the power connection or battery status.
- Les tecles no responen:
- Assegureu-vos que el teclat estigui encès.
- If certain keys on the left side are unresponsive, check if a 'finger' button or similar setting is activated, which might mute sections of the keyboard for specific modes. Deactivate it to restore full keyboard functionality.
- Problemes d'alimentació:
- If using USB power, try a different USB port or power adapter.
- If using batteries, replace them with fresh ones.
For further assistance, please contact RockJam customer support.
9. Especificacions
| Característica | Detall |
|---|---|
| Model | RJ490BB |
| Nombre de claus | 49 |
| Font d'alimentació | Battery Powered (4x AA), USB (DC 5V-2A) |
| Connectivitat | USB, 3.5mm Headphone Jack, 3.5mm Aux Input, 3.5mm Microphone Input |
| Tons | 200 |
| Ritmes | 200 |
| Cançons de demostració | 50 |
| Característiques especials | Built-In Speaker, Compact, Headphone Jack, Lightweight, Recording |
| Dimensions | 7.28 x 30.71 x 2.36 polzades |
| Pes de l'article | 4.4 lliures (2 quilograms) |
10. Garantia i Suport
For warranty information and customer support, please refer to the documentation included with your purchase or visit the official RockJam website. You may also contact the manufacturer, PDT UK Ltd, for assistance.





