JU6-KBD: Roland Juno-6 / Juno-60 MIDI Interface


JU6-KBD is MIDI kit for Roland Juno-6 / Juno-60 synthesizer. It controls instrument’s DCOs (keyboard) and arpeggiator rate.

SKU: JU6-KBD Category:


Main Features | Installation | Documents & SW Support | FAQ & Troubleshooting

Main Features |

  • The interface works in one direction only – it only receives MIDI data. Instrument’s keyboard, knobs, sliders and switches are not transmitted as a MIDI data.
  • Controls the Juno’s keyboard (DCOs) and arpeggiator clock from MIDI. The instrument’s tone parameters (control elements on panel) are not MIDI controllable.
  • The instrument’s keyboard is controlled manually and by MIDI Note On/Off commands simultaneously (in parallel manner).
  • Easy user control of the interface parameters via MIDI CCs (as well as SysEx for experts):
    » 61 MIDI Notes (5 octaves) range
    » Transpose function (over whole range of MIDI Notes)
    » Four modes of MIDI Notes priority can be chosen
    » The instrument’s DCOs can be detuned by MIDI Pitch Bend (in semitone steps only) in range 0 to ±24 semitones
    » The instrument’s arpeggiator can be synchronized by four tempo sources.
    » Hold pedal – CC #64 (works with MIDI Notes)
    » User selectable MIDI Channel for communication
  • 20 internal memory presets to store the interface user settings (the instrument’s tone parameters cannot be stored).
  • Original features of the instrument are not changed and the instrument can be used the same way as before the interface installation.
  • Very easy installation without the instrument circuits modification.

The interface recognizes MIDI commands:

  • Note On/Off
  • Program Change
  • Pitch Bend
  • Standard CCs (Hold, ASO, ANO, RAC)
  • Own CCs (# 16-20, 119)
  • Common MIDI Synchronization – MIDI Clock
  • Common System Reset
  • System Exclusive Messages

Installation |

Installation of all MIDI interface parts into the instrument is very easy and no problem should occur if all instructions indicated in the installation manual are kept. Please note that a complete beginner should not carry out the installation. At least basic manual dexterity and knowledge of soldering are required.

The installation process it the same for Juno-6 and Juno-60 instruments – both instruments have identical main printed circuits board.

The JU6-KBD MIDI kit package contains all necessary parts (board, cables, coupling elements, etc.) incl. owner’s and installation manuals in printed form.

Block diagram:


Documents & SW Support |

See list of documents and support software available for download.

Note that Owner’s Manual and Installation Manual in printed form are included in the product delivery.

FAQ & Troubleshooting |

Problem: Solution:

The instrument’s arpeggiator stopped working after the interface installation.

Check correct connection of blue wires of the interface bunched cables to the instrument. Maybe they are exchanged together.

The instrument’s arpeggiator cannot be synchronized with MIDI clock.

» Check if transmitting of MIDI Clock is enabled in your MIDI sequencer / DAW.
» Set “Arpg Clock Mode” interface’s parameter to “MIDI” mode (e.g. with CC #19).
» Select requested tempo with “Arpg Clock Rate” interface’s parameter (e.g. with CC #20)

Some MIDI Notes are not played.

Check setting of “Key Shift” interface’s parameter. The interface accepts only block of 61 MIDI Notes numbers and all other MIDI Notes (out of range) are ignored.

I cannot change receiving MIDI channel.

The receiving MIDI Channel number can be changed only via SysEx command (see chapter 6 in owner’s manual for details how to do it). Note that the instrument must be switched off and on again (to reset the interface) after the MIDI Channel number was changed!

How to make “Factory Reset” of the interface?

Send “F0 00 20 21 7F 53 40 02 7F 6C F7” SysEx Message to the interface. (See chapter 6 in owner’s manual for details how to do it.)

Additional information

Weight 0,3 kg
Dimensions 74 × 47 mm