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What are the safety warnings for using the ROCKJAM RJ88DP?

To avoid serious casualties caused by electric shock, short circuit, fires or other dangers, please be sure to obey the following information at all times. The precautions are as follows:

• Do not open the digital piano or try to disassemble any part of it. If it should appear to be malfunctioning, discontinue using immediately and have it inspected by qualified service personnel.

• To avoid damaging the piano, please do not place it in a wet environment. Do not place any vessel holding water onto the piano as spillage may occur and damage the internal parts of the piano.

• If the power cord or plug becomes damaged, the piano suddenly cuts off during use or an unusual smell/smoke is detected, please turn off the power and unplug the power adaptor as soon as possible. Then find the qualified service personal to inspect the piano.

• Please use the specified adaptor only. Using the wrong adaptor can result in damage to the instrument.


What are the general usage notices for the ROCKJAM RJ88DP?

• Please remove the power adaptor from the outlet if the piano is not used for a long period of time.

• Do not expose the instrument to excessive dust, vibrations or extreme hot/cold environments (such as direct sunlight or heaters).

• Please unplug the power adaptor or other external devices before moving the keyboard.

• When cleaning the instrument, use a soft, dry cloth. Do not use paint thinner, solvents, cleaning fluids, or chemical-impregnated wiping cloths which may cause discolouration.

• Before connecting the instrument to other electronic components, turn off the power and set all volume levels to minimum. You can then adjust the minimum volume gradually to an appropriate level once the music is playing.

• Do not place the piano on an uneven surface.

• Do not place heavy objects on the piano or hit the keys with excessive force.

• The electric piano has been designed with enough volume redundancy which is suitable for classroom and such places. When using the Piano, please adjust the volume to an appropriate level. Excessive loud volume levels for long periods of time may damage your hearing.


What are the technical specifications of the ROCKJAM RJ88DP?

Keyboard 88 Piano Keys Input/ output Microphone, Aux Input/ Output, Headphones
Touch panel Supported Pedal Inputs Sustain, Soft, Sostenuto Pedal
Polyphony 128 Notes USB-MIDI Supported
Tones 10 tones MP3 Supported
Demos 10 songs Power Adapter DC 12V – 2A
Keyboard control Split, Lesson function Output Power 2 x 12 W
Effect Control Dual voice, Reverb, chorus Size 125 x 29 x 9 cm
Metronome 10 Weight 6.8 kg
Setting Memory Non Volatile
MIC Electret Microphone
Accessories Included User Guide, Power Adapter, Music Stand

What is included in the box with the ROCKJAM RJ88DP?

• RockJam Digital Piano

• Music Stand

• Power Adapter

• User Guide

• Tablet Clip x2


How do I set up the music stand and tablet clips on the ROCKJAM RJ88DP?

To set up the music stand:

Step 1. Insert the two ends of the music stand into the designated slots on the top of the piano.

Step 2. Lean the music stand back until it is secure.

To use the tablet clips, simply slide them onto the top edge of the music stand to hold your tablet in place.


What are the functions of the top panel controls on the ROCKJAM RJ88DP?

1. Power Switch: Turn the piano’s power on or off. The piano will automatically shut down after 30 minutes if it is not used.

2. Master Volume Knob: Adjust the master volume for Line Output and Headphone Output.

3. Reverb Button: Touch this button to turn the reverb effect on or off, the indicator light will turn on or off accordingly.

4. Chorus Button: Touch this button to turn the chorus effect on or off. The indicator light will turn on or off accordingly.

5. Demo Button: Touch this button to turn the Demo on or off.

6. Metronome Button: Touch this button to turn the metronome on or off. The LED light will turn on or off accordingly.

7. Function Button: Touch the lesson button and the metronome button at the same time to enter or exit Advanced Function Mode, LED light will turn on or off.

8. Lesson Button: Touch this button to turn the Lesson Mode on or off, the LED light will turn on or off accordingly.

9. Split Button: Touch this button to enter or exit Split Mode, the LED light will turn on or off accordingly.

10. Voice Select Buttons: Touch one of these buttons to select a preset voice, the selected voice the LED light will turn on or off.


What are the functions of the rear panel ports on the ROCKJAM RJ88DP?

1. Power Connector: Use only dedicated AC-DC power adapter for this piano.

2. Back Headphone Output: Connect stereo headphones with a 1/4″(6.35mm) stereo connector. When headphones are connected, the internal speakers will automatically turn off.

3. Front Headphone Output: Connect stereo headphones with a 3.5mm stereo connector. When headphones are connected, the internal speakers will automatically turn off. Front and back headphones can be used at the same time.

4. MIC Input: Connect electret Microphone with a 1/4″(6.35mm) stereo connector. Note: the piano only supports electret microphone, not moving-coil microphone.

5. USB-MIDI Port: Allows for transfer of MIDI data to a computer.

6. AUX IN Port: Allows Input audio signals from other audio devices, such as mp3, mobile phone and other media devices to the keyboard.

7. AUX OUT Port: Allows connect external audio equipment such as an amplifier, mixer, or recorder.

8. Soft Pedal Input: Connect a standard 1/4″(6.35mm) soft pedal here.

9. Sustain Pedal Input: Connect a standard 1/4″ (6.35mm) sustain pedal here.

10. PEDAL Port: Three pedals can be connected to PS2 interface (Delay pedal, Soft pedal, Tone pedal).

11. USB Port: After connecting the USB drive, you can play songs in mp3 format stored on the USB drive. (USB drive not included).


How do I install batteries in the ROCKJAM RJ88DP?

The battery compartment is on the bottom panel of the piano. Install 6 “D” batteries here to power the digital piano if you are not using the power adapter. Be careful to follow the polarity marking on the inside of the compartment, replace the compartment cover, and make sure that it locks firmly in place.

Caution: Do not use different kinds of batteries at the same time, or mix old and new batteries. When the batteries run down, the low voltage will lead to weaker volume and distortion of tone; replace them with new batteries. If the instrument is not to be in use for a long time, remove the batteries from it to prevent possible fluid leakage.


How do I play the demo songs on the ROCKJAM RJ88DP?

The Digital Piano has 10 demo songs built-in, each preset with a specific voice.

To play all demo songs in a loop:

1. Touch the “DEMO” button. The piano will enter Demo Mode and play 10 demo songs in a continuous loop. The indicator light will flash during demo playback.

2. Touch the “DEMO” button again to exit this mode.

To play a specific voice’s demo:

1. Touch and hold the “DEMO” button.

2. While holding “DEMO”, press one of the voice buttons and then release both buttons at the same time.

3. To exit Demo Mode, touch the “DEMO” button again and the LED will turn off.

Voice Demo List:

VOICE DEMO VOICE DEMO
Piano Marriage Of Love Church Organ Nobody
Grand Piano Autumn Moon On A Clam L SYNTH The Sun Sank
Electric Piano Mozart Piano Bass Pop Dance Music
Strings Blue Danube Percussion Charming Night
Hammond Organ Butterfly Love Guitar Romance De Amor

How do I select different tones on the ROCKJAM RJ88DP?

1. Touch one of Tone buttons (e.g., PIANO, E. PIANO, STRINGS). The corresponding LED will be lit for that voice.

2. Play the keys to hear the selected tone.


How do I use Layer Mode on the ROCKJAM RJ88DP?

Layer Mode allows for two different voices to be layered together for a more full and rich sound.

To Enable Layer Mode:

1. Touch and hold one voice button first, then press another voice button to select the two voices that you want to layer together. Release both buttons at the same time.

2. The piano will enter Layer Mode and the corresponding voice button LEDs will be lit for the currently selected voices.

3. Play the keys to hear the two different voices layered together.

To Disable Layer Mode:

Touch one of the Voice buttons.

Note: The first Voice button you press will be set as the “Upper” voice and the second Voice button you press will be set as the “Lower” voice. You can adjust the volume of each voice in Advanced Functions.


How do I use Split Mode on the ROCKJAM RJ88DP?

Split Mode allows you to split the 88 keys into two zones so that you can have two different voices for each of your hands.

To Enable Split Mode:

1. Select the voice you would like for the right-hand zone.

2. Touch and hold the Split button, then press one of the Voice buttons to select the Split voice for the left-hand zone. Release both buttons at the same time to enter Split Mode. The corresponding LEDs will be lit.

3. Play the keys and you will hear different voices in the right-hand and left-hand zones.

To Disable Split Mode:

Touch the Split button again. The split button LED will turn off.

To Set the Split Point:

1. Touch and hold the Split button, and then touch the key on the keyboard where you would like the split to occur.

2. Release the Split button to confirm the new split point.


How do I enter and exit Advanced Function Mode on the ROCKJAM RJ88DP?

To enter Advanced Function Mode, touch the “Metronome” and “Lesson” buttons at the same time. The function LED will light up. You can then use the keyboard keys to change various settings.

To exit Advanced Function Mode, touch both the “Metronome” and “Lesson” buttons again.


How do I turn the click tone on or off on the ROCKJAM RJ88DP?

The click tone provides an audible click when you change a setting. To turn it on or off:

1. Enter Advanced Function Mode. The function LED will be lit.

2. Touch the key marked “Click” on the keyboard to turn the tone on or off.

3. Exit Advanced Function Mode.


How do I adjust the touch sensitivity on the ROCKJAM RJ88DP?

The keyboard is equipped with touch response to control the level of the voice with your playing strength. You can adjust this setting or turn it off.

1. Enter Advanced Function Mode. The function LED will be lit.

2. Use the “Touch” keys on the keyboard to select an appropriate touch level.

3. Exit Advanced Function Mode.

Parameters Description
OFF Fixed
1 Soft
2 Medium
3 Hard

How do I transpose the pitch on the ROCKJAM RJ88DP?

This function allows the overall pitch of the piano to be transposed up or down.

1. Enter Advanced Function Mode. The function LED will be lit.

2. Use the keys marked Transpose+ or Transpose – to set the transpose value from -6 to 6.

3. Press both Transpose keys together to reset the transposition back to the default value of 0.

4. Exit Advanced Function Mode.


How do I use Lesson Mode on the ROCKJAM RJ88DP?

The Lesson Mode feature divides the 88 keys into two zones with the same pitch and voice. This enables both the student and teacher to play together during instruction.

To use Lesson Mode:

1. Touch the “Lesson” button to turn Lesson Mode on or off. The LED light will indicate its status. In Lesson Mode, Layer and Split Modes are automatically disabled.

2. To select a voice for both zones, touch one of the Voice buttons.

3. To change the split point, touch and hold the Split button, press a key between C3 to B5, and then release the Split button. The default split point is C4.


How do I change the octave in Lesson Mode on the ROCKJAM RJ88DP?

1. Enter Advanced Function Mode. The function LED will be lit.

2. Use the keys marked “Octave+” or “Octave-” to adjust the octave value from -3 to 3.

3. Touch both octave keys at the same time to restore the default octave value to 0.

4. Exit Advanced Function Mode.

Note: The octave value can only be adjusted in Lesson Mode and has no effect in other functions.


How do I use the Reverb effect on the ROCKJAM RJ88DP?

The Reverb effect is enabled by default when the piano is turned on.

To Turn Reverb On / Off:

Touch the “Reverb” button to turn the effect on or off. The button’s LED will indicate the status.

To Adjust The Reverb Type:

1. Enter Advanced Function Mode. The function LED will be lit.

2. Use the keys marked “Reverb” 1-5 to select the desired reverb type.

3. Exit Advanced Function Mode.

Parameters Reverb Type
1 Room 1
2 Room 2
3 Room 3
4 Hall 1
5 Hall 2

How do I use the Chorus effect on the ROCKJAM RJ88DP?

To Enable The Chorus Effect:

Touch the “Chorus” button to turn the chorus effect on. The button LED will be lit. Touch the button again to turn the chorus effect off.

To Adjust The Chorus Type:

1. Enter Advanced Function Mode. The function LED will be lit.

2. Use the keys marked “Chorus” 1-5 to select the desired chorus type.

3. Exit Advanced Function Mode.

Parameters Chorus Type
1 Chorus 1
2 Chorus 2
3 Chorus 3
4 Chorus 4
5 Feedback

How do I adjust the volume for Layer and Split Mode on the ROCKJAM RJ88DP?

You can set the volume of each voice in Layer and Split Mode by using Advanced Function Mode.

1. Enter Advanced Function Mode. The function LED will be lit.

2. Use the following keys to change the volume of the respective voice (1 is the lowest, 5 is the highest):

Upper Volume 1-5: Change the volume of the upper voice in Layer Mode.

Lower Volume 1-5: Change the volume of the lower voice in Layer Mode.

Split Volume 1-5: Change the volume of the split voice in Split Mode.

3. Exit Advanced Function Mode.


How do I use the metronome on the ROCKJAM RJ88DP?

Press the “Metronome” button to turn the metronome on or off. The LED will flash along with the current tempo.

To Set The Metronome Time Signature:

1. Enter Advanced Function Mode.

2. Use the keys marked “Metronome speed” (0-9) to set the time signature (e.g., 1/4, 2/4, 3/4, 4/4, etc.).

3. Exit Advanced Function Mode.

To Set The Metronome Volume Level:

1. Enter Advanced Function Mode.

2. Use the keys marked “Metronome Volume” (1-5) to set the volume. 1 is lowest, 5 is highest.

3. Exit Advanced Function Mode.

To Set The Metronome Tempo:

1. Enter Advanced Function Mode.

2. Adjust the tempo in one of three ways:

• Use the keys marked “TEMPO+” or “TEMPO-” to adjust the value. Touch both keys at the same time to reset to the default of 120.

• Use the number keys (0-9) to enter a 3-digit tempo value (e.g., touch 1, 2, 0 for 120 bpm).

• Tap the key marked “TAP” at the desired tempo. The metronome will start at the speed of the last two presses.

3. Exit Advanced Function Mode.


How do I set the MIDI channel on the ROCKJAM RJ88DP?

You can set the MIDI channel for USB-MIDI output using Advanced Function Mode.

1. Enter Advanced Function Mode. The function LED will be lit.

2. Use the keys marked “MIDI Ch+” or “MIDI Ch-” to set the MIDI Out channel from 1 to 16.

3. Touch both keys at the same time to restore the default channel setting to 1.

4. Exit Advanced Function Mode.

Note: The keyboard uses only one MIDI channel at a time, even if you are using Split Mode or Layer Mode.


How do I adjust the microphone parameters on the ROCKJAM RJ88DP?

1. Enter Advanced Function Mode. The function LED will be lit.

2. Touch “MIC VOL+” to increase voice volume or “MIC VOL-” to decrease the voice volume.

3. Touch “MIC echo+” to increase echo effect or “MIC echo-” to decrease the echo effect.

4. Exit Advanced Function Mode.


How do I play MP3 songs from a USB stick on the ROCKJAM RJ88DP?

Insert the USB stick into the USB port on the rear panel.

1. Enter Advanced Function Mode. The function LED will be lit.

2. Touch the MP3 key for play/pause to play or pause songs.

3. Touch the MP3 Play key to choose the one you desired.

4. Touch the MP3 skip forward or back keys to change tracks.

5. Touch the volume up or down keys to adjust volume.

6. Exit Advanced Function Mode.


How do I enable or disable the Auto Power Off function on the ROCKJAM RJ88DP?

To save energy, the piano will automatically shut down after 30 minutes if it is not used.

To enable or disable this function:

1. Enter Advanced Function Mode. The function LED will be lit.

2. Use the keys marked Auto Power Off to enable or disable the function.

3. Exit Advanced Function Mode.


What settings are saved after powering off the ROCKJAM RJ88DP?

The following settings are restored after power off/on (Non-Volatile):

• The selected tone (The 1st tone in layer mode)

• Reverb and Chorus on/off setting

• Split point of the left and right hand

• Click sound on or off

• Touch sensitivity level

• Transpose level

• Octave level

• Reverb level

• Chorus level

• Metronome, Tempo/Volume/Time signature

• MIDI Channel

• Auto power off setting

The following settings are not restored:

• Split mode

• Microphone Volume and Echo

• MP3 Player Volume


How do I restore the ROCKJAM RJ88DP to factory default settings?

1. Enter Advanced Function Mode. The function LED will be lit.

2. Pressing the reset key means the following parameters will be reset to their default values:

• Reverb

• Chorus

• Metronome Tempo

• Metronome Time signature

• Metronome Volume

• Upper Volume

• Lower Volume

• Split Volume

• Split point

• MIDI Channel

• Touch Sensitivity

• Auto Power off

3. Exit Advanced Function Mode.


What should I do if the speakers on my ROCKJAM RJ88DP produce a pop sound when turned on/off?

This is normal and is no cause for alarm.


Why don’t the speakers on my ROCKJAM RJ88DP produce sound when the keys are played?

Check if the master volume is set too low or if headphones are plugged into the Headphone Output. The speakers will be muted if there are headphones plugged into the Headphone Output.


What should I do if the speakers on my ROCKJAM RJ88DP are producing noise or interference?

Using a mobile phone in close proximity to the piano may produce interference. To prevent this, turn off the mobile phone or keep it away from the piano.


What should I do if certain notes on my ROCKJAM RJ88DP produce the wrong pitch?

Make sure that the transpose value is set to 0. If that does not work, then restore the factory default settings according to Advanced Functions.


Why do the notes on my ROCKJAM RJ88DP sound weak or distorted?

If the piano is being powered by batteries, make sure new batteries are installed.


How should I dispose of the ROCKJAM RJ88DP?

The symbol on the product means that it is classed as Electrical or Electronic Equipment and should not be disposed of with other household or commercial waste at the end of its working life. The Waste Electrical and Electronic Equipment (WEEE) Directive (2012/19/EU) has been put in place to encourage recycling using the best available recovery and recycling techniques to minimize the impact on the environment. When you have no further use for this product, please dispose of it using your local authority’s recycling processes.

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