RockJam RJ88DP Digital Piano User Guide

⚠️ PRECAUTIONS

Please be sure to read the following information carefully and keep this in the safe place for your further reference.

❗ WARNING

In order 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.

ℹ️ NOTICE

• 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.

Technical Specification

Box Contents

• RockJam Digital Piano
• Music Stand
• Power Adapter
• User Guide

Setup

Music Stand Assembly

The music stand requires simple assembly. Follow these steps:

1. Step 1: Attach the main support pieces of the music stand.
2. Step 2: Secure the assembled stand, ensuring it is stable.

A diagram shows the music stand being assembled in two steps.

Panel Descriptions

Rear Panel Connections

The rear panel provides various connection ports:

• USB Port: For connecting a USB drive to play MP3 songs.
• PEDAL Port: For connecting sustain, soft, or delay pedals (via PS2 interface).
• SUSTAIN Input: For connecting a standard 1/4" (6.35mm) sustain pedal.
• SOFT Input: For connecting a standard 1/4" (6.35mm) soft pedal.
• AUX OUT: Connect external audio equipment like amplifiers, mixers, or recorders.
• AUX IN: Input audio signals from external devices like MP3 players or mobile phones.
• MIDI Port: For transferring MIDI data to a computer.
• MIC Input: Connect an electret microphone with a 1/4" (6.35mm) connector.
• PHONES Output: Connect headphones.
• DC 9-12V Input: For connecting the power adapter.

Diagrams illustrate connections for sustain/soft pedals, sostenuto pedal, and amplifier via dual channel audio cables. Also shows connections for mobile phone and computer via USB OTG and USB respectively, and audio output for phones/MP3s.

Front/Rear Panel Connection Diagram

This section details connections for headphones, microphone, and power adapter.

• Headphone Outputs: Two headphone jacks are available: a 3.5mm stereo jack (Front) and a 1/4" (6.35mm) stereo jack (Rear). When headphones are connected, the internal speakers are automatically muted. Both can be used simultaneously.
• Electret Microphone Input: A 1/4" (6.35mm) jack for connecting an electret microphone.
• Power Adapter: Connects to the DC input on the rear panel.

Top Panel Controls

The top panel features controls for power, volume, and various functions:

1. Power Switch: Turns the piano on or off. The piano automatically shuts down after 30 minutes of inactivity to save energy.
2. Master Volume Knob: Adjusts the overall volume for line output and headphone output.
3. Reverb Button: Toggles the reverb effect on/off. An indicator light shows the status.
4. Chorus Button: Toggles the chorus effect on/off. An indicator light shows the status.
5. Demo Button: Toggles demo songs playback on/off.
6. Metronome Button: Toggles the metronome on/off. An LED flashes with the tempo.
7. Function Button: Used in conjunction with other buttons (e.g., Metronome and Lesson) to access Advanced Function Mode.
8. Lesson Button: Toggles Lesson Mode on/off.
9. Split Button: Toggles Split Mode on/off.
10. Voice Select Buttons: Selects preset instrument voices (e.g., Piano, E. Piano, Organ, Synth, Percussion, Guitar, Bass, Strings). An LED indicates the selected voice.

Rear Panel Ports (Detailed)

The rear panel includes:

1. Power Connector: Use only the dedicated AC-DC power adapter.
2. Back Headphone Output: 1/4" (6.35mm) stereo jack.
3. Front Headphone Output: 3.5mm stereo jack.
4. MIC Input: 1/4" (6.35mm) jack for electret microphones.
5. USB-MIDI Port: For MIDI data transfer.
6. AUX IN Port: For audio input from external devices.
7. AUX OUT Port: For audio output to external equipment.
8. Soft Pedal Input: 1/4" (6.35mm) jack for a soft pedal.
9. Sustain Pedal Input: 1/4" (6.35mm) jack for a sustain pedal.
10. PEDAL Port: PS2 interface for connecting up to three pedals (Delay, Soft, Tone).
11. USB Port: For playing MP3 files from a USB drive.

Bottom Panel

Battery Compartment: Accommodates 6 "D" batteries for alternative power. Ensure correct polarity when installing and replace the cover securely. Caution: Do not mix battery types or old/new batteries. Replace batteries when they are low to prevent volume issues and potential leakage.

Quick Start

Playing Demo Songs

The digital piano features 10 built-in demo songs.

Voice Demo List:

To play the demo songs:

1. Touch the "Demo" button to enter Demo Mode and play all 10 songs in a loop. The indicator light flashes during playback. Touch "DEMO" again to exit.
2. To play a specific voice demo: Touch and hold the "DEMO" button, then press one of the voice buttons and release both simultaneously. Touch "DEMO" again to exit.

Tones Selection

Select an instrument voice by touching one of the Tone buttons. The corresponding LED will light up. Play the keys to hear the selected tone.

Available Tones: PIANO, E. PIANO, H. ORGAN, SYNTH, PERCUSSION, G. PIANO, STRINGS, C. ORGAN, BASS, GUITAR.

Layer Mode

Layer Mode allows you to combine two different voices for a richer sound.

To Enable Layer Mode:

1. Touch and hold one voice button, then press another voice button to select the two desired voices. Release both buttons simultaneously. The piano enters Layer Mode, and LEDs for the selected voices will light up.
2. Play the keys to hear the layered voices.
3. To disable Layer Mode, touch any Voice button.

Note: The first voice button pressed becomes the "Upper" voice, and the second becomes the "Lower" voice. Adjust levels in Advanced Functions.

Split Mode

Split Mode divides the 88 keys into two zones, allowing different voices for the left and right hands. For example, Piano for the right hand and Brass for the left.

To Enable Split Mode:

1. Select the voice for the right-hand zone.
2. Touch and hold the Split button, then press a voice button for the left-hand zone. Release both buttons simultaneously. Split Mode is now enabled, indicated by lit LEDs.
3. Play the keys to hear the different voices in each zone.

To disable Split Mode, touch the Split button again.

To Set Split Point:

1. Touch and hold the Split button, then touch the key where you want the split point to occur.
2. Release the Split button to confirm.

Note: When using Layer and Split Modes together, the right-hand zone plays layered voices, while the left-hand zone plays the Split voice only. Adjust Split voice level in Advanced Functions.

Advanced Functions

How to Enter and Exit Advanced Function Mode

To enter: Touch the "Metronome" and "Lesson" buttons simultaneously. The function LED will light up. Use the keys corresponding to the graphics to change settings. To exit, touch both "Metronome" and "Lesson" buttons again.

Setting the Click Tone

The click tone provides an audible cue when changing settings. To toggle it on/off:

1. Enter Advanced Function Mode.
2. Touch the "Click" key.
3. Exit Advanced Function Mode.

Touch Sensitivity

The keyboard responds to playing strength. There are 4 touch settings (Off, 1, 2, 3) controlling volume based on key pressure. Setting to 'Off' provides a fixed response.

To Set The Sensitivity:

1. Enter Advanced Function Mode.
2. Use the "Touch" keys to select the desired level.
3. Exit Advanced Function Mode.

Transpose

Transpose allows you to shift the overall pitch of the piano up or down.

To change the transposition:

1. Enter Advanced Function Mode.
2. Use the "Transpose+" or "Transpose-" keys to set a value from -6 to 6. Press both keys together to reset to 0.
3. Exit Advanced Function Mode.

Lesson Mode

Lesson Mode divides the keyboard into two zones with the same pitch and voice, facilitating simultaneous playing and learning for students and teachers.

Note: Layer and Split Modes are automatically disabled in Lesson Mode.

Set Other Functions In Lesson Mode:

1. To select a voice for both zones, touch a Voice button.
2. To change the split point, touch and hold the Split button, press a key between C3 to B5, then release the Split button. The default split point is C4.

To Change the Octave of both Zones in Lesson Mode:

1. Enter Advanced Function Mode.
2. Use the "Octave+" or "Octave-" keys to adjust the octave value from -3 to 3. Press both keys simultaneously to reset to 0. This setting only affects Lesson Mode.
3. Exit Advanced Function Mode.

Effects and Volume

Reverb

Adds an adjustable reverb effect. The piano has five reverb types. The reverb effect is enabled by default when the piano is turned on.

To Turn on / off The Reverb Effect: Touch the "Reverb" button. The LED indicates the status.

To Adjust The Reverb Type:

1. Enter Advanced Function Mode.
2. Use the keys marked "Reverb" 1-5 to select the desired type.
3. Exit Advanced Function Mode.

Chorus

Adds an adjustable chorus effect. There are five chorus types.

To Enable The Chorus Effect: Touch the "Chorus" button. The LED indicates the status.

To Adjust The Chorus Type:

1. Enter Advanced Function Mode.
2. Use the keys marked "Chorus" (1-5) to select the desired type.
3. Exit Advanced Function Mode.

Adjust Volume

Set the volume for each voice in Layer and Split Modes using Advanced Function Mode.

To adjust Upper/Lower/Split Voice Volume:

1. Enter Advanced Function Mode.
2. Use the keys marked "Upper Volume 1-5" (or "Lower Volume", "Split Volume") to set the volume level (1=lowest, 5=highest).
3. Exit Advanced Function Mode.

Metronome

The metronome provides a steady tick sound to aid practice. Press the "Metronome" button to turn it on/off. The LED flashes with the tempo, adjustable from 30 to 400 beats per minute.

To Set The Metronome Tempo:

1. Enter Advanced Function Mode.
2. Use "TEMPO+" or "TEMPO-" keys to adjust tempo. Pressing both resets to default (120 BPM).
3. Alternatively, use the "Metronome" (0-9) keys to input a tempo value (e.g., 1,2,0 for 120 BPM).
4. The TAP function allows setting tempo by tapping.
5. Exit Advanced Function Mode.

To Set The Metronome Time Signature:

1. Enter Advanced Function Mode.
2. Use the "Metronome speed" (0-9) keys to set the time signature (e.g., 1/4, 4/4, 3/8, 12/8).
3. Exit Advanced Function Mode.

To set the metronome volume level:

1. Enter Advanced Function Mode.
2. Use the "Metronome Volume" (1-5) keys to set the volume (1=lowest, 5=highest).
3. Exit Advanced Function Mode.

MIDI and MIC Settings

Setting the MIDI channel

Set the MIDI channel for USB-MIDI output:

1. Enter Advanced Function Mode.
2. Use "MIDI Ch+" or "MIDI Ch-" to set the channel (1-16). Pressing both keys simultaneously resets to default channel 1.
3. Note: Only one MIDI channel is used at a time, even in Split or Layer Mode.
4. Exit Advanced Function Mode.

Setting MIC Parameters

Adjust microphone settings:

1. Enter Advanced Function Mode.
2. Use "MIC VOL+" or "MIC VOL-" to adjust voice volume.
3. Use "MIC echo+" or "MIC echo-" to adjust echo effect.
4. Exit Advanced Function Mode.

MP3 Function and Auto Power Off

MP3 Function

Play songs from a USB stick inserted into the USB port.

1. Enter Advanced Function Mode.
2. Touch the MP3 key "▶️" to play or pause songs.
3. Touch the MP3 Play key to choose a song.
4. Touch "⏮️" or "⏭️" to skip forward or back.
5. Touch "?" or "?" to adjust volume.
6. Exit Advanced Function Mode.

Auto Power Off

To save energy, the piano automatically shuts down after 30 minutes of inactivity.

To enable or disable the Auto Power Off function:

1. Enter Advanced Function Mode.
2. Use the keys marked "Auto Power Off" to enable or disable this function.
3. Exit Advanced Function Mode.

Settings Memory and Restore Defaults

Non-Volatile Settings Memory

The following settings are restored after power off/on:

• Selected tone (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

Restore Factory Default Settings

Resets various parameters to their default values.

1. Enter Advanced Function Mode.
2. Press the reset key. The following parameters will be reset: 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.

Troubleshooting

FCC Compliance Statement

FCC Class B Part 15

This device complies with Part 15 of the Federal Communications Commission (FCC) Rules. Operation is subject to the following two conditions:

• This device may not cause harmful interference.
• This device must accept any interference received, including interference that may cause undesired operation.

CAUTION:

Changes or modifications to this unit not expressly approved by the party responsible for compliance could void the user's authority to operate this equipment.

This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the manufacturer's instructions, may cause interference harmful to radio communications.

There is no guarantee, however, that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment to an outlet on a circuit different from that to which the receiver is connected.
• Consult the dealer or an experienced radio or TV technician for help.

Product Disposal Instructions

The symbol ♻️ shown here and on the product means that the product is classed as Electrical or Electronic Equipment and should not be disposed with other household or commercial waste at the end of its working life.

The Waste Electrical and Electronic Equipment (WEEE) Directive (2002/96/EC) has been put in place to encourage the recycling of products using best available recovery and recycling techniques to minimise the impact on the environment, treat any hazardous substances and avoid the increase of landfill.

When you have no further use for this product, please dispose of it using your local authority's recycling processes. For more information please contact your local authority or the retailer where the product was purchased.

RockJam is a registered trademark of: PDT Ltd Unit 4B, Greengate Industrial Estate, White Moss View Middleton, Manchester M24 1UN, UK Email: info@pdtuk.com