Roland JU-06 Sound Module User Manual

Introduction

The JU-06 is a sound module designed to be used with the K-25m keyboard (sold separately). Sound can be heard through the built-in speakers.

The JU-06 can be powered by batteries or via USB bus power. For battery operation, insert four AA batteries, ensuring correct polarity.
When placing the unit face down, protect the buttons and knobs from damage. Handle the unit with care and avoid dropping it.
When batteries are low, the LED indicator above the C1 ribbon controller flashes. Replace batteries with new ones.

Using the JU-06 with the K-25m Keyboard (Sold Separately)

For installation information, refer to the K-25m owner's manual.

Playing the JU-06 via MIDI or USB

The JU-06 can also be played via MIDI or USB. For details, refer to "Connecting Equipment.".

Connecting Equipment

To prevent malfunction or damage, always lower the volume and turn off all units before making connections.

A. Micro USB Port (O): Use a standard USB 2.0 cable (A-microB) to connect this port to your computer. This port can be used for USB MIDI and USB audio data transfer. You must install the USB driver when connecting the JU-06 to your computer. Download the USB driver from the Roland website. For more information, refer to the Readme.htm file included in the download. http://www.roland.com/support/
B. [VOLUME] Knob: Adjusts the volume.
C. PHONES Jack: Connect headphones (sold separately) here.
D. OUTPUT Jack: Connect an amplifier or monitor speakers here.
E. INPUT Jack: This is the audio input jack. Sound from the connected device is output through the OUTPUT jack and the PHONES jack.
F. MIDI Connectors: You can play the JU-06 by connecting a MIDI device via a standard MIDI cable.

Turning the Unit On

G. [POWER] Switch: Turns the unit on and off.

After making connections, turn on the JU-06 sound module first, then the connected system. Incorrect power-on order may cause malfunction or damage. To turn off the unit, turn off the connected system first, then the JU-06.
This unit is equipped with protection circuitry. A short interval (a few seconds) is required after power-on for normal operation.
Always lower the volume before turning the unit on or off. Some sound may be heard even with the volume lowered when turning the unit on or off. This is normal and does not indicate a malfunction.

Factory Reset

This explains how to reset the JU-06 module to its factory default settings.

While holding down the BANK [1] button, turn on the unit. The [MANUAL] button flashes. If you decide to cancel the factory reset, turn off the unit.
Press the [MANUAL] button to perform the factory reset.
When all buttons flash, turn off the JU-06 module and turn it back on.

Data Backup/Restore

Backup

While holding down the BANK [2] button, turn on the unit.
Connect your computer to the JU-06's USB port with a USB cable.
Open the "JU-06" drive on your computer. Backup files are located in the "BACKUP" folder of the "JU-06" drive.
Copy the backup files to your computer.
After the copy process is complete, eject the USB drive, then disconnect the USB cable.
- Windows 8/7: Right-click the "JU-06" icon in "My Computer" and execute "Eject".
- Mac OS: Drag the "JU-06" icon to the Trash icon in the Dock.
Turn off the JU-06 module.

Restore

As explained in steps 1–3 of the "Backup" procedure, open the "JU-06" drive on your computer.
Copy the JU-06 backup files into the "RESTORE" folder of the "JU-06" drive.
After the copy process is complete, eject the USB drive, then press the [MANUAL] button.
When the LED indicators stop flashing completely, turn off the unit.

Description of Panels

This section describes the various controls and their functions.

1. Common Section

Change the sound (patch/bank) here.

BANK Buttons [1]–[8]
PATCH NUMBER Buttons [1]–[8]

What is "patch/bank"?

You can store/recall up to 64 groups (8 patches x 8 banks) of sound settings.

To change bank/patch

Press the [1]–[8] buttons to change the bank.
Press the PATCH NUMBER [1]–[8] buttons to change the patch.

* For each sound, refer to the "JU-06 Sound List" (PDF). http://www.roland.com/manuals/

To store the patch

A dot appears on the display when a patch is edited.
Press the target BANK [1]–[8] button for storage.
Hold down the target PATCH NUMBER [1]–[8] button for storage.

2. Ribbon Controller (C1/C2)

These are touch-type ribbon controllers. C1 (left) is for pitch bend and C2 (right) is for modulation.

* If no K-25m keyboard, USB, or MIDI is connected, playing the C1 controller produces a sound for listening.

3. LFO

Create cyclic change (modulation) in the sound here.

[RATE] Slider: Determines the LFO speed.
[DELAY TIME] Slider: Sets the time from when the sound occurs until the LFO reaches its maximum amplitude.

4. DCO

Select the waveform that determines the sound's character and specify its pitch here.

RANGE Buttons [4], [8], [16]: Specify the oscillator's octave.
[LFO] Slider: Allows the LFO to modulate the pitch, creating a vibrato effect.
[PWM] Slider:
- When the [LFO/MAN] switch is set to "MAN" (MANUAL): Adjusts the pulse width amount.
- When the [LFO/MAN] switch is set to "LFO": Adjusts the depth of modulation.
What is "pulse width"?
Pulse width is the amount of the upper portion of the pulse wave expressed as a percentage of the overall waveform length. If the upper and lower amplitudes are not equal, the waveform is called an asymmetric pulse wave.
[LFO/MAN] Switch: Selects whether the pulse width value is a fixed value set manually by the [PWM] slider (MAN) or varied by the 3 LFO (LFO).
Waveform Buttons: Select the waveform that forms the basis of the sound.
- Square wave/asymmetric pulse wave
- Sawtooth wave
[SUB] Slider: Adjusts the sub-oscillator volume.
[NOISE] Slider: Adjusts the noise volume.

5. HPF

This is a high-pass filter that passes high frequencies and cuts low frequencies.

[FREQ] Slider: Sets the cutoff frequency of the high-pass filter. Frequency components below the set cutoff frequency are eliminated.

6. VCF

This is a low-pass filter that passes low frequencies and cuts high frequencies.

[FREQ] Slider: Sets the cutoff frequency of the low-pass filter. Frequency components above the set cutoff frequency are eliminated, making the sound smoother.
[RES] Slider: Resonance boosts the sound at the filter's cutoff frequency region. Higher settings produce greater emphasis, creating a distinctive "synthesizer"-like sound.
Polarity Switch: Selects the polarity (direction) of the envelope.
[ENV] Slider: Adjusts the depth to which 8 ENV (envelope) controls the cutoff frequency.
[LFO] Slider: Uses 3 LFO to vary the cutoff frequency.
[KYBD] Slider: Adjusts how the note's pitch affects the cutoff frequency (key follow) when using the keyboard to control the cutoff frequency. Moving the slider down causes the cutoff frequency to fall as you play higher on the keyboard.

7. VCA

Adjust the amount of change according to the envelope for the volume here.

[ ] Switch: Selects whether the volume is controlled by 8 ENV (envelope), ( ), or by the input signal ( ).
[LEVEL] Slider: Adjusts the patch volume.

8. ENV

Create an envelope change here.

[A] Slider: Attack time
[D] Slider: Decay time
[S] Slider: Sustain level
[R] Slider: Release time

Step Sequencer

The step sequencer allows you to enter a note for each of up to 16 steps, and play those notes in a loop. You can change the number of steps between 1 and 16. Up to 16 patterns can be saved.

Press the [CHORUS 2] and [MANUAL] (SEQ) buttons simultaneously to access the Step Sequencer mode. The [s] button flashes.
- To exit Step Sequencer mode, press the [CHORUS 2] and [MANUAL] buttons simultaneously again.
Step Buttons [1]–[16]: In Step Sequencer mode, the 16 numeric buttons shown in the illustration are referred to as [1]–[16] (step buttons).

Function Controls

Start/Stop Playback: [MANUAL] (s)
Tempo: [CHORUS 2] + C1
Step On/Off State: [1]–[16]
Enter a Note: [1]–[16] + C1 (or keyboard)
Enter a Tie: Step button + next step button (e.g., [1] + [2])
Enter a Step Time: [1]–[16] + C2
Set Step Time for All Steps: [CHORUS 2] + C2
Select Pattern (1–16): [CHORUS 2] + [1]–[16]
Save Pattern (1–16): [CHORUS 2] + [1]–[16] (long press)

Pattern Settings

Number of Steps (1–16): [MANUAL] + [1] & [1]–[16]
Shuffle: [MANUAL] + [2] & [4]–[12] (default: [8])
Scale: [MANUAL] + [3] &
- [1]
- [2]
- [3]
- [4]
(default: [2])

Sequencer Settings *1

Step Order Type: [MANUAL] + [15] &
- [1] Normal (default)
- [2] Odd/Even Reversed
- [3] Odd Only
- [4] Even Only
- [5] Odd 0 Even
- [6] Even 0 Odd
- [7] Random
Step Mode Off: [MANUAL] + [16] &
- [1] Rest (default)
- [2] Skip

*1 Sequencer settings revert to their respective default values when the unit is turned off.

Step Entry

Hold down the step button (buttons [1]–[16]) where you want to enter a note.
While holding down the step button, play the keyboard. Alternatively, use the C1 ribbon controller to specify the note.
Release the step button.
Press the [s] button to play the note.

* To delete a note from a step, turn off a step button ([1]–[16]) that contains a note (the button darkens).

Configuration

SOLO/UNISON/POLY/Octave Shift/Portamento

While holding down the [CHORUS 2] button, specify the value using the numeric buttons shown in the table below, or with the C1/C2 ribbon controller.

Parameter	Value Setting	Explanation
SOLO/UNISON/POLY mode	[14]	Plays sounds monophonically (SOLO).
	[15]	Plays all sounds in unison (UNISON).
	[16]	Plays sounds polyphonically (POLY).
Octave Shift *1	[4]–[13] (-4–+5)	Changes the keyboard range in octave steps. For the ±0 setting (default), [8] is lit.
Portamento Switch	C1 (OFF/ON)	Creates a smooth, gradual pitch change between one key and the next key played.
Portamento Time	C2 (0–100)	Adjusts the time it takes for the pitch to change.

System Settings

While holding down the [MANUAL] button, press one of the numeric buttons shown in the table below to select the parameter.
Press a numeric button to select the value, and release the [MANUAL] button to confirm the value.

Parameter	Selection	Value Setting	Explanation
Master Tune	[MANUAL] + [1]	[1]–[16] (433–448 Hz)	Specifies the master tuning. For the 440 Hz setting (default), [8] is lit.
MIDI Channel	[MANUAL] + [2]	[1]–[16]	Specifies the MIDI transmit/receive channel (1–16).
MIDI Clock Source	[MANUAL] + [3]	[1] (AUTO) [2] (INTERNAL)	If MIDI clock is entering via the MIDI IN connector or USB port, the JU-06's tempo will automatically synchronize with the MIDI clock (default). The JU-06 operates at the tempo specified on the unit itself. Choose the "INTERNAL" setting if you do not want to synchronize the unit with an external device.
Transpose *1	[MANUAL] + [4]	[2]–[13] (-6–+5)	Transposes the keyboard range in semitone steps. For the ±0 setting (default), [8] is lit.
Key Velocity *1	[MANUAL] + [5]	[1] (TOUCH) [2] (64) [3] (127)	Adjusts the velocity value that will be transmitted when the keyboard is played. The actual keyboard velocity will be transmitted. A fixed velocity value (64 or 127) will be transmitted, regardless of how it is played.
Velocity Curve *1	[MANUAL] + [6]	[1] (LIGHT) [2] (MEDIUM) [3] (HEAVY)	Defines the keyboard's touch. Sets the keyboard for a soft or light touch. Sets the keyboard for a standard touch. Sets the keyboard for a hard or heavy touch.
Auto Off	[MANUAL] + [7]	[1] (OFF) [2] (30 min)	The unit will not turn off automatically. The unit will turn off automatically after 30 minutes have passed. * Auto-off will not occur while a USB unit is connected.
LED Demo	[MANUAL] + [8]	[1] (OFF) [2] (1 min) [3] (3 min) [4] (10 min)	Specifies the time until the LED DEMO is displayed.
Chain Mode	[MANUAL] + [9]	[1] (OFF) [2] (ON)	Although the JU-06 is four-voice polyphonic, you can increase polyphony by using a MIDI cable to connect two or more JU-06 units and activating the Chain Mode setting. If Chain Mode is active, the fifth voice and subsequent notes pass "through" MIDI OUT.
Ribbon Controller Note Scale	[MANUAL] + [10]	[1]–[16] (default: [1])	For more information, refer to the "JU-06 Sound List" (PDF). http://www.roland.com/manuals/
C2 Modulation Hold	[MANUAL] + [11]	[1] (HOLD OFF) (default) [2] (HOLD ON)
Chorus Noise	[MANUAL] + [12]	[1] (NOISE OFF) [2] (HALF) [3] (ORIGINAL JUNO CHORUS) (default)

Patch Settings

Parameter			Explanation
Bend Range	[MANUAL] + [13]	[1]–[12], [13] (2 oct), [16] (OFF)	Changes the pitch bend range. (default: [2])
Delay Level	[MANUAL] + [14]	[1]–[16]	Adjusts the delay sound volume. (OFF=[1])
Delay Time	[MANUAL] + [15]		Adjusts the delay time (the time it takes for the sound to be delayed).
Delay Feedback	[MANUAL] + [16]		Adjusts the delay feedback. (OFF=[1])

*1 Only when using the K-25m keyboard (sold separately)

Main Specifications