Crumar Mojo 61 Digital Tonewheel Organ User Manual

1. Introduction

The Crumar Mojo 61 is a digital tonewheel organ designed to accurately emulate the sound and feel of vintage electromechanical organs. This manual provides detailed instructions for the proper setup, operation, and maintenance of your instrument, ensuring optimal performance and longevity.

2. Safety Information

Please read and understand all safety instructions before operating the Crumar Mojo 61. Retain this manual for future reference.

• Power Supply: Use only the AC adapter specified for this unit. Ensure the voltage matches your local power supply.
• Moisture: Do not expose the instrument to rain, moisture, or excessive humidity. Avoid placing liquid containers near the unit.
• Ventilation: Ensure adequate ventilation around the unit. Do not block ventilation openings.
• Servicing: Do not attempt to service the instrument yourself. Refer all servicing to qualified service personnel.
• Placement: Place the instrument on a stable, level surface to prevent accidental falls.

3. Package Contents

Verify that all items are present in the package:

• Crumar Mojo 61 Digital Tonewheel Organ
• AC Power Adapter
• User Manual (this document)

4. Product Overview

The Crumar Mojo 61 features a 61-key waterfall keyboard and a comprehensive control panel designed for intuitive operation.

Figure 4.1: Crumar Mojo 61 digital tonewheel organ, angled view from the front right, showcasing the full keyboard, drawbars, and control panel.

Figure 4.2: Front view of the Crumar Mojo 61 digital tonewheel organ, displaying the entire 61-key waterfall keyboard and the complete layout of the control panel.

4.1. Front Panel Controls

The front panel provides access to all essential sound shaping and performance controls.

• Drawbars: Nine drawbars for each manual (Upper/Lower) to shape the harmonic content of the organ sound.
• Vibrato & Chorus: Controls for selecting various vibrato and chorus types (V1, V2, V3, C1, C2, C3) and engaging the effect.
• Percussion: Switches for enabling percussion, selecting decay, and volume levels.
• Rotary Speaker Controls: Buttons for 'Run/Stop' and 'Slow/Fast' to control the simulated rotary speaker effect.
• Volume & Drive: Knobs for overall output volume and overdrive intensity.
• EQ: Knobs for Bass, Mid, and Treble adjustments.
• Reverb & Click: Knobs for reverb amount and key click intensity.
• Preset Buttons: A-Preset-B buttons for quick recall of saved settings.
• Mode: Switches for Single, Split, and External Lower modes.

Figure 4.3: Close-up of the left side of the Crumar Mojo 61 control panel, showing the Volume, Drive, Run/Stop, Slow/Fast rotary speaker controls, and Vibrato & Chorus section.

Figure 4.4: Detailed view of the Vibrato & Chorus section on the Crumar Mojo 61, showing the selector switches for various vibrato and chorus types (H-B V3, L-F C2, V2, C1) and the ON switch.

Figure 4.5: Close-up of the manual drawbars and the A-Preset-B, Mode, Hold Upper/Lower, and Pedals controls on the Crumar Mojo 61.

Figure 4.6: Close-up of the right side of the Crumar Mojo 61 control panel, featuring the Reverb, Click, Bass, Mid, Treble controls, and Percussion/Couplers section.

Figure 4.7: Detailed view of the Percussion/Couplers section and the Type selector (VB3, Pipe, Combo, E.P.) on the Crumar Mojo 61, including Transpose, Cabinet On, and Local Off switches.

4.2. Rear Panel Connections

The rear panel provides all necessary input and output connections for integration into your audio setup.

• Audio Outputs: Balanced stereo outputs (L/R) for connecting to mixers, amplifiers, or audio interfaces.
• Headphone Jack: 3.5mm stereo jack for private monitoring.
• MIDI In/Out/Thru: Standard MIDI connectors for connecting to other MIDI devices.
• USB: USB port for MIDI over USB and potential software updates.
• Power Input: Connection for the AC power adapter.

Figure 4.8: Rear panel of the Crumar Mojo 61, showing all input and output connections including audio outputs, MIDI In/Out/Thru, USB, and power input.

5. Setup

5.1. Unpacking and Placement

1. Carefully remove the Crumar Mojo 61 from its packaging.
2. Place the instrument on a stable, flat surface, such as a keyboard stand or desk.
3. Ensure there is sufficient space around the unit for ventilation and cable connections.

5.2. Power Connection

1. Connect the supplied AC power adapter to the 'DC IN' port on the rear panel of the Mojo 61.
2. Plug the other end of the power adapter into a suitable electrical outlet.

5.3. Audio Connection

1. For stereo output, connect 1/4-inch TRS cables from the 'OUTPUT L' and 'OUTPUT R' jacks on the rear panel to your mixer, amplifier, or audio interface.
2. For headphone monitoring, plug 3.5mm stereo headphones into the 'PHONES' jack on the rear panel.

5.4. MIDI and USB Connection

• To connect to external MIDI devices, use standard MIDI cables from the 'MIDI OUT' of the Mojo 61 to the 'MIDI IN' of your device, and vice-versa if bi-directional communication is needed.
• Connect a USB cable from the 'USB' port on the Mojo 61 to your computer for MIDI communication or potential software updates.

5.5. Wi-Fi Setup

The Mojo 61 includes a Wi-Fi antenna for connectivity. Refer to the Crumar website or advanced manual for detailed instructions on connecting to a Wi-Fi network for remote control or system updates.

6. Operating Instructions

6.1. Powering On/Off

1. To power on, press the 'POWER' button located on the rear panel.
2. To power off, press the 'POWER' button again. It is recommended to lower the volume on your audio system before powering off.

6.2. Basic Organ Sound Selection and Shaping

1. Use the 'TYPE' selector switches to choose between different organ models (e.g., VB3, Pipe, Combo, E.P.).
2. Adjust the drawbars for the Upper and Lower manuals to create your desired harmonic blend. Pushing a drawbar in reduces its volume, pulling it out increases it.

6.3. Vibrato and Chorus

Engage the 'ON' switch in the Vibrato & Chorus section. Use the selector switches (V1, V2, V3 for Vibrato; C1, C2, C3 for Chorus) to choose the desired effect type and intensity.

6.4. Percussion Controls

Activate percussion using the 'ON' switch in the Percussion/Couplers section. Adjust 'SOFT/NORMAL' for volume and 'FAST/SLOW' for decay time. 'THIRD' and 'SECOND' switches control the percussion pitch.

6.5. Rotary Speaker Simulation

The Mojo 61 features a realistic rotary speaker simulator. Use the 'RUN/STOP' button to start or stop the rotation, and the 'SLOW/FAST' button to switch between slow and fast rotation speeds.

6.6. Equalization (EQ)

Use the 'BASS', 'MID', and 'TREBLE' knobs to fine-tune the tonal characteristics of your sound.

6.7. Reverb and Key Click

Adjust the 'REVERB' knob to add spatial depth to your sound. The 'CLICK' knob controls the intensity of the key click sound, a characteristic element of vintage tonewheel organs.

6.8. Saving and Recalling Settings

The Mojo 61 allows you to save and recall your preferred settings. Refer to the detailed operational guide on the Crumar website for specific instructions on using the 'A-Preset-B' buttons and other memory functions.

7. Maintenance

7.1. Cleaning

Wipe the instrument with a soft, dry cloth. For stubborn dirt, use a slightly damp cloth and then dry thoroughly. Avoid abrasive cleaners or solvents.

7.2. Storage

When not in use for extended periods, store the Mojo 61 in a dry, temperature-controlled environment, away from direct sunlight and extreme temperatures.

7.3. Software Updates

Crumar may release firmware updates to improve performance or add features. Check the official Crumar website periodically for available updates and instructions on how to install them via USB or Wi-Fi.

8. Troubleshooting

If you encounter issues with your Crumar Mojo 61, refer to the following common problems and solutions:

9. Specifications

10. Warranty and Support

For detailed warranty information, technical support, and service inquiries, please visit the official Crumar website or contact your authorized Crumar dealer. Keep your proof of purchase for warranty claims.