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RockJam RJ493 - User Manual

RockJam RJ493
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RJ493 / RJ493RC
49 Key MIDI Keyboard
User Guide

Table of Contents

Questions and Answers

  • K
    Kayla BaileyAug 3, 2025
    How to fix no sound on my RockJam Keyboard?
    • M
      Matthew RileyAug 4, 2025
      If there is no sound after turning on your RockJam Keyboard, ensure the master volume isn't set to the minimum. Also, check that headphones or other equipment are not plugged in, as these will cut off the built-in speaker system automatically. Finally, verify that the keyboard’s built-in tones are not muted by checking the tone volume level, which should not be set to 000. Refer to section – ‘Tone Volume Adjustment’.
  • B
    brandon27Aug 8, 2025
    What to do if my RockJam RJ493 Keyboard sound is distorted?
    • D
      David GrayAug 8, 2025
      If your RockJam Keyboard sound is distorted, interrupted, not working properly, behaving strangely, or cutting out, especially at high volume, it might be due to the use of an incorrect power cable or USB adapter. Use the Type C USB power cable supplied with the keyboard and a USB power adapter with a 2A rated output. Adapters with lower ratings, such as 1A or below, are not recommended.
  • E
    Elizabeth HarrisAug 12, 2025
    Why does my RockJam RJ493 turn off by itself?
    • C
      Christopher MannAug 12, 2025
      If your RockJam Keyboard switches off by itself, it is likely due to the ‘Auto Power Off’ function, which activates after 5 minutes of inactivity. To switch the keyboard back on, simply press the ‘Power’ button.
  • U
    uhaydenAug 16, 2025
    How to connect Bluetooth MIDI on RockJam RJ493?
    • M
      Michael MartinezAug 16, 2025
      Bluetooth MIDI connection on your RockJam Keyboard needs to be made from an APP that supports Bluetooth MIDI, such as ‘Garageband’. It cannot be connected from the Bluetooth settings of your mobile phone or tablet.
  • A
    Alicia HansonAug 20, 2025
    How to balance volume on RockJam RJ493?
    • Y
      Yolanda WilliamsAug 20, 2025
      To balance the volume on your RockJam Keyboard, adjust the master volume and rhythm volume separately as described in the instructions. Keep in mind that the master volume affects the rhythm volume.
  • L
    Lisa SheltonAug 25, 2025
    What to do if auto accompaniment doesn't start on RockJam RJ493?
    • C
      Catherine StoutAug 26, 2025
      If the auto accompaniment doesn't start in ‘Sync’ mode on your RockJam Keyboard, make sure you are playing a note from the first 19 keys on the left-hand side of the keyboard to initiate the accompaniment.
  • P
    Pamela HaynesAug 29, 2025
    Why is there a faint noise when I turn my RockJam RJ493 Keyboard on?
    • C
      charles53Aug 29, 2025
      This faint noise when turning your RockJam Keyboard on or off is normal and nothing to worry about.

Summary

Important Information

Safety Precautions

Covers power cable safety, avoiding disassembly, and general handling.

Usage and Environment

Guidelines for proper usage environment, cleaning, and connection.

Operational Guidance

Advice on volume, force, and packaging.

Specification Updates

Notice regarding potential changes to product specifications.

Controls, Connections, and Display

Front Panel Layout

Details the buttons, knobs, and indicators on the keyboard's front.

External Ports Explained

Describes the purpose of each jack on the rear panel.

LED Screen Information

Explains the functionality of the 3-digit LED display.

Initial Setup and Power

Powering Methods

Instructions for using USB Type C power and battery operation.

Battery Charging

Specific steps for charging the RJ493RC model.

Headphone Usage

How to connect and use headphones.

Connecting Audio Devices

Amplifier;Hi-Fi Hookup

Guide to connecting the keyboard to external sound systems.

AUX Input for Music

How to play audio from external devices through the keyboard.

Connecting External Gear

Microphone Connection

Instructions for connecting an external microphone.

PC;Tablet MIDI Link

How to connect the keyboard to computers for MIDI functions.

Keyboard Operation Modes

Bluetooth Connectivity

Setup for Bluetooth audio and MIDI.

Advanced Bluetooth Audio

Using apps with keyboard speakers via Bluetooth.

Power and Volume Management

Power Button Functionality

How to turn the keyboard on and off.

Automatic Power Off

Details the auto power saving feature.

Master Volume Dial

Instructions for adjusting the main volume.

Tone Selection and Effects

Choosing Tones

Method for selecting different instrument sounds.

Tone Volume Control

Adjusting the volume for individual tones.

Sustain Feature

How to activate and use the sustain effect.

Sound Modulation Features

Vibrato Effect

How to apply a vibrato effect to notes.

Percussion Keyboard Mode

Using keys as percussion instruments.

Rhythm Accompaniment

Selecting Rhythms

How to choose and play rhythm patterns.

Rhythm Volume Setting

Adjusting the volume of the rhythm section.

Rhythm Control Features

Sync Playback Mode

Using the sync function for accompaniment.

Intro;End Section Control

Adding intros and endings to rhythms.

Tempo Adjustments

Modifying the speed of rhythms and metronome.

Advanced Keyboard Functions

Touch Sensitivity Settings

Explains the touch response feature.

Demo Song Library

How to access and play demo songs.

Chord Mode Guide

Instructions for using the single-finger chord feature.

Metronome and Recording

Metronome Usage

How to use the metronome and its beat patterns.

Recording and Playback

Steps for recording musical performances.

Appendix I: Percussion Instruments

Appendix II: Rhythm Styles

Appendix III: Tone Catalog

Appendix IV: Demo Song List

Appendix V: Chord Diagrams

Troubleshooting Common Issues

Technical Specifications

MIDI App Recommendations

FCC Compliance Information

Product Disposal Guidelines (EU;UK)

EU;UK Regulatory Compliance

RockJam RJ493 Specifications

General IconGeneral
DisplayLCD
Built-in Rhythms100
ConnectivityHeadphone Output
Power Supply6 x AA Batteries
FeaturesRecord and Playback functionality
IncludedKeyboard stand
Touch SensitivityNo
Built-in Sounds100 Instrument Voices

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