Roland JX-03 Owner's Manual

JX-03
SOUND MODULE

Introduction

The JX-03 is a sound module that can be used in conjunction with the K-25m keyboard unit (sold separately).
The sound can be heard through the built-in speakers.
* The JX-03 can operate on batteries or on USB bus power. If you are using batteries, insert four AA batteries,
making sure that the batteries are oriented correctly.
* When turning the unit over, be careful so as to protect the buttons and knobs from damage. Also, handle
the unit carefully; do not drop it.
* When the batteries run low, the LED above the Ribbon Controller C1 ( 2 ) blinks. Install new batteries.
Using the JX-03 in conjunction with the K-25m keyboard unit (sold
separately)
& For installation, refer to the K-25m's Owner's Manual.

Playing the JX-03 via MIDI or USB

You can also play the JX-03 via MIDI or USB. For details, refer to "Connecting Your Equipment. "

Connecting Your Equipment

* To prevent malfunction and equipment failure, always turn down the volume, and turn off all the units
before making any connections.
A B C D E F
G
A
Micro USB (O) port
Use a commercially available USB 2.0 cable (A-microB) to connect this port to your computer. It can be used
to transfer USB MIDI and USB audio data. You must install the USB driver when connecting the JX-03 to
your computer. Download the USB driver from the Roland website. For details, refer to Readme.htm which is
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 this jack to your amp or monitor speakers.
E
INPUT jack
This is the audio input jack. Sound from the connected device is output
MIDI OUT
from the OUTPUT jack and PHONES jack.
F
MIDI connectors
You can play the JX-03 by connecting a MIDI device via a commercially
available MIDI cable.
MIDI keyboard

Turning the Power On

G
[POWER] switch
This turns the power on/off.
* After you've made connections correctly, be sure to turn on the power in the order of the JX-03 first, and
then the connected system. Powering-on in the incorrect order may cause malfunctions or damage. When
turning the power off, power-off the connected system first, and then the JX-03.
* This unit is equipped with a protection circuit. A brief interval (a few seconds) after turning the unit on is
required before it will operate normally.
* Before turning the unit on/off, always be sure to turn the volume down. Even with the volume turned down,
you might hear some sound when switching the unit on/off. However, this is normal and does not indicate
a malfunction.

Restoring the Factory Settings (Factory Reset)

Here's how to return the JX-03 to its factory-set state.
1.
While holding down the PATCH [1] button, turn on the power.
The [MANUAL] button blinks.
If you decide to cancel the factory reset, turn off the power.
2.
Press the [MANUAL] button to execute the factory reset.
3.
When all buttons blink, turn the JX-03's power off, then on again.

Data Backup/Restore

Backup
1.
While holding down the PATCH [2] button, turn on the power.
2.
Connect your computer to the JX-03's USB port via USB cable.
3.
Open the "JX-03" drive on your computer.
The backup files are located in the "BACKUP" folder of the "JX-03" drive.
4.
Copy the backup files into your computer.
5.
After copying is completed, eject the USB drive and then disconnect the USB cable.
Windows 8/7
Right-click on the "JX-03" icon in "My Computer" and execute "Eject. "
Mac OS
Drag the "JX-03" icon to the Trash icon in the Dock.
6.
Turn the JX-03 power off.
Restore
1.
As described in the procedure for "Backup" Step 1–3, open the "JX-03" drive on your computer.
2.
Copy the JX-03 backup files into the "RESTORE" folder of the "JX-03" drive.
3.
After copying is completed, eject the USB drive and then press the [MANUAL] button.
4.
After the LEDs have completely stopped blinking, turn off the power.
Owner's Manual

Panel Descriptions

2 3
1
1
Common section
Here you can switch the sound (patch/bank).
Controller Explanation
What is "Patch/Bank"?
You can recall up to 32 preset patches (16 patches x Bank A/B) and 16 user patches (16
patches x Bank C).
To switch the bank/patch
BANK [A]–[C] buttons
1.
Press the BANK [A]–[C] buttons to switch the bank.
2.
PATCH [1]–[16] Press the PATCH [1]–[16] buttons to switch the patch.
buttons
* For each sound, refer to the "JX-03 Sound List" (PDF).
& http://www.roland.com/manuals/
To store the patch
1.
Long-press the PATCH [1]–[16] button of the save-destination.
* User patches are saved in bank C.
[CHORUS] button Turns the chorus effect On/Off.
[MANUAL] button Causes sound to be produced according to the current settings of the knobs.
2
Ribbon controller (C1/C2)
These are touch-type ribbon controllers. C1 (left) is pitch bend, and C2 (right) is modulation.
* If a K-25m keyboard unit, USB, or MIDI are not connected, touching the C1 controller plays a preview sound.
3
DCO-1/DCO-2
Here you can select the waveform that determines the character of the sound, and specify its pitch.
MIDI IN
Controller Explanation
[Range] (64–2) knob Specifies the octave of the oscillator.
Selects the waveform that is the basis of the sound.
R (Sine wave), S (Triangle wave), T (Sawtooth wave),
[Waveform] knob
JX-03 wave), U (Square wave),
(Pink noise),
[Tune] knob Adjusts the pitch of the DCO-2.
[Fine Tune] knob Makes a fine adjustment to the DCO-2 pitch.
Freq Mod [LFO] switch Allows the 6
LFO to modulate the DCO pitch (producing vibrato).
Freq Mod [ENV] switch Allows the
7 Envelope to modulate the DCO pitch.
SYNC 1–2
This is oscillator sync. It generates a complex waveform by forcibly resetting DCO-2 to
the beginning of its cycle in synchronization with the DCO-1 frequency. Setting the
value to 2 produces a greater effect.
MET 1–2 (METAL)
[Cross Mod] knob
Produces a metallic sound by using the DCO-2 waveform to modulate the DCO-1
frequency. Setting the value to 2 produces a greater effect.
RING
This is a ring modulator. It generates a complex waveform by multiplying DCO-1 and
DCO-2.
[LFO] knob
6 LFO modulate the DCO.
Adjusts the depth by which
[ENV] knob 7
Adjusts the depth by which Envelope modulate the DCO.
Selects the polarity (direction) of the envelope.
[ ] switch
4

VCF

These settings determine the brightness and thickness of the sound.
Controller Explanation
Adjusts the volume balance of the DCO-1 and DCO-2.
[Source Mix] knob Turning the knob to the left increases the DCO-1 volume; turning it to the right
increases the DCO-2 volume.
Specifies the cutoff frequency of the high-pass filter. Frequency components below
[HPF] knob
the cutoff frequency are cut.
Specifies the cutoff frequency of the low-pass filter. Frequency components above the
[Cutoff Freq] knob
cutoff frequency are cut, making the sound mellower.
Resonance boosts the sound in the region of the filter's cutoff frequency.
[Resonance] knob
Higher settings produce stronger emphasis, creating a distinctively "synthesizer-like"
sound.
[LFO Mod] knob 6
Uses the LFO to vary the cutoff frequency.
Adjusts the way in which the pitch of the note affects the cutoff frequency (key follow)
[Pitch Follow] knob when using the keyboard to control cutoff frequency. Turning the knob to the left
causes the cutoff frequency to fall as you play higher on the keyboard.
[ENV Mod] knob 7
Adjusts the depth by which the Envelope controls the cutoff frequency.
Selects the polarity (direction) of the envelope.
[ ] switch
English In order to use this device correctly, please carefully read "USING THE UNIT SAFELY" and "IMPORTANT NOTES" (the "USING THE UNIT SAFELY" leaflet) before use.
After reading, keep these instructions at hand for immediate reference.
4 5 6 7 5

VCA

Here you can adjust the amount of time-varying change (envelope) for the volume.
Controller Explanation
Selects whether the volume is controlled by
[ ] switch
( ).
[Level] knob Adjusts the volume of the patch.
6
LFO
Here you can create cyclic change (modulation) in the sound.
Controller Explanation
Selects the LFO waveform.
R (Sine wave), T (Sawtooth wave),
[Waveform] knob
U (Square wave), RND (Random wave),
Specifies the time from when the tone sounds until the LFO reaches its maximum
[Delay Time] knob
amplitude.
[Rate] knob Determines the speed of the LFO.
7

Envelope

Here you can create time-varying change (envelope).
Controller Explanation
[Attack] knob Attack time
[Decay] knob Decay time
[Sustain] knob Sustain level
[Release] knob Release time
(Asymmetrical pulse
(White noise)

Step Sequencer

The step sequencer lets you input a note at each of up to 16 steps, and play back the notes as a loop.
You can change the number of steps between 1 and 16. Up to 16 patterns can be stored.
1.
Press the [CHORUS] and [MANUAL] buttons (SEQ) simultaneously to enter the Step Sequencer mode.
The [s] button blinks.
* To exit the Step Sequencer mode, press again [CHORUS] and [MANUAL] buttons simultaneously.
Step buttons [1]–[16]
In Step Sequencer mode, the 16 numeric buttons shown in
the illustration are called [1]–[16] (Step buttons).
Function Controller
Play start/stop [MANUAL] (s)
Tempo [CHORUS] + C1
On/off status of each step [1]–[16]
Enter a note [1]–[16] + C1 (or keyboard)
Enter a tie Step button + Next step button (e.g.: [1] + [2])
Enter a gate time [1]–[16] + C2
Set the gate time of all steps [CHORUS] + C2
Select a pattern (1–16) [CHORUS] + [1]–[16]
Write the pattern (1–16) [CHORUS] + [1]–[16] (long-press)
Pattern settings
[MANUAL] + [1] & [1]–[16]
Number of steps (1–16)
[MANUAL] + [2] & [4]–[12] (default: [8])
Shuffle
[MANUAL] + [3] &
Scale
Sequencer settings *1
[MANUAL] + [15] &
Step order type
[MANUAL] + [16] & [1] Rest (default), [2] Skip
Off step mode
*1 Sequencer settings return to the default setting when the power is turned off.
Inputting steps
1.
Hold down the step button ([1]–[16] buttons) at which you want to enter a note.
2.
While holding down the step button, play the keyboard. Alternatively, use the C1 ribbon controller to
specify the note.
3.
Release the step button.
4.
Press the [s] button to play back.
* To delete the note at a step, turn off a step button ([1]–[16]) that contains a note (making the button go dark).
Settings
Numeric buttons [1]–[16]
In Settings mode, the 16 numeric buttons shown in the
illustration are called the [1]–[16] buttons.
SOLO/UNISON/POLY/Octave Shift/Portamento
7
Envelope ( ) or by the gate signal
1.
While holding down the [CHORUS] button, specify the value by using the numeric buttons shown in the
following table or the C1/C2 ribbon controller.
Parameter Value setting Explanation
[14]
SOLO/
UNISON/
[15]
POLY mode
[16]
(Reverse sawtooth wave), Octave Shift [4]–[13]
(Noise) *1 (-4–+5)
Portamento C1
Switch (OFF/ON)
Portamento C2
Time (0–100)
System Settings
1.
While holding down the [MANUAL] button, press one of the numeric buttons shown in the following
table to select the parameter.
* Keep holding down the [MANUAL] button.
2.
Press a numeric button to select the value, and release the [MANUAL] button to confirm the value.
Parameter Select
[MANUAL]
Master Tune
+ [1]
MIDI [MANUAL]
Channel + [2]
MIDI Clock [MANUAL]
Source + [3]
Transpose [MANUAL]
*1 + [4]
Key Velocity [MANUAL]
*1 + [5]
Velocity
[MANUAL]
Curve
+ [6]
*1
[MANUAL]
Auto Off
+ [7]
[MANUAL]
LED Demo
+ [8]
[MANUAL]
Chain Mode
+ [9]
Ribbon
[MANUAL]
Controller
+ [10]
Note Scale
C2
[MANUAL]
Modulation
+ [11]
Hold
Chorus [MANUAL]
Noise + [12]
Patch settings
[MANUAL]
Bend Range
+ [13]
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
[1]
[MANUAL]
[2]
Delay Level
+ [14]
[3]
[MANUAL]
[4]
Delay Time
+ [15]
(default: [2])
Delay [MANUAL]
Feedback + [16]
[1] Normal (default), [2] Even/Odd reverse, [3] Odd only,
[4] Even only, [5] Odd only 0 Even only,
*1 Only when using the K-25m keyboard unit (sold separately)
[6] Even only 0 Odd only, [7] Random

Main Specifications

Maximum Polyphony 4 voices
Rechargeable Ni-MH battery (AA, HR6) x 4, Alkaline battery (AA, LR6) x 4,
Power Supply
USB bus power
Current Draw 500 mA (USB bus power)
Dimensions 300 (W) x 128 (D) x 46 (H) mm
Weight
950 g
(including batteries)
Accessories Owner's Manual, Leaflet "USING THE UNIT SAFELY, " Alkaline battery (AA, LR6) x 4
Options
Keyboard unit: K-25m
(sold separately)
* In the interest of product improvement, the specifications and/or appearance of this unit are subject to
change without prior notice.
Plays monophonically (SOLO).
Plays all sounds in unison (UNISON).
Plays polyphonically (POLY).
Shifts the keyboard range in steps of one octave.
For the ±0 (default) setting, [8] is lit.
Creates a smooth change in pitch between one key and the next key played.
Adjusts the time required for the pitch change.
Value
Explanation
setting
[1]–[16] Specifies the master tuning.
(433–448 Hz) For the 440 Hz (default) setting, [8] is lit.
[1]–[16] Specifies the MIDI transmit/receive channel (1–16).
If MIDI clock is being input to the MIDI IN connector or the USB
[1] (AUTO) port, the JX-03's tempo will automatically synchronize to MIDI clock
(default).
The JX-03 operates at the tempo specified on the unit itself. Choose
[2]
the "INTERNAL" setting if you don't want to synchronize to an external
(INTERNAL)
device.
[2]–[13] Transposes the keyboard range in semitones.
(-6–+5) For the ±0 (default) setting, [8] is lit.
Adjusts the velocity value that will be transmitted when you play the keyboard.
[1] (TOUCH) Actual keyboard velocity will be transmitted.
[2] (64) A fixed velocity value (64 or 127) will be transmitted regardless of how
you play.
[3] (127)
Sets the keyboard's touch.
[1] (LIGHT) Sets the keyboard to a light touch.
[2] (MEDIUM) Sets the keyboard to the standard touch.
[3] (HEAVY) Sets the keyboard to a heavy touch.
[1] (OFF) The power does not turn off automatically.
The power turns off automatically after 30 minutes.
[2] (30 min)
* Auto Off does not occur while USB-connected.
[1] (OFF)
[2] (1 min)
Specifies the time until the LED DEMO is shown.
[3] (3 min)
[4] (10 min)
Although the JX-03 is four-note polyphonic, you can
MIDI OUT MIDI IN
increase the polyphony by using a MIDI cable to
connect two or more JX-03 units and turning Chain
mode on.
[1] (OFF)
If Chain mode is on, the fifth voice and subsequent notes are passed
"thru" via MIDI OUT.
[2] (ON)
Sets the note scale type of the ribbon controller (default: [1]).
[1]–[16] For details, refer to "JX-03 Sound List" (PDF).
& http://www.roland.com/manuals/
[1] (HOLD OFF) (default)
[2] (HOLD ON)
[1] (NOISE OFF)
[2] (HALF)
[3] (ORIGINAL JX CHORUS) (default)
[1]–[12],
Specifies the Pitch Bend Range in semitones.
[13] (2 oct),
(default: [2])
[16] (OFF)
Adjusts the volume of delay sound. (OFF=[1])
[1]–[16] Adjusts the delay time (the time by which the sound is delayed).
Adjusts the delay feedback. (OFF=[1])
:
Roland JX-03: SOUND MODULE
11-13/16 (W) x 5-1/16 (D) x 1-13/16 (H) inches
2 lbs 2 oz