Roland Super JX Projects

Both DIY build and minimum hassle kits are catered for depending on how much work you are prepared to do to save money. Detailed fitting guides are provided to make it as straightforward as possible.

Enquiries & Pricing

Pricing does not include postage or PayPal fees. Minimal fees are possible if payments are made by using services such as IBAN, “Transferwise” or using existing PayPal account balances. Prices quoted via email are valid for 1 month.

Please contact us by email for final total, a copy of the fitting guide or help in deciding what you need.

We are based in North Wales, UK. For all enquiries and orders please email:


Minimum Hassle Kits

Replacement displays work with original Roland firmware, however, Vecoven firmware upgrade is required to take advantage of the enhanced display features.

JX10 Module – 189 GBP

A single all in one assembly that is attached to the JX10 Display Board. This includes VFD and mounting screws. Wire not supplied.


MKS70 Kit – 197 GBP

A full kit comprising of all cables and mounting hardware for the MKS70. The VFD attaches to the Display Board and the new PCB attaches to the casing using spacers.


Options & DIY

Vecoven Upgrades With Display Kit

The Vecoven SuperJX ROM update is for existing customers of the Vecoven OS and is only shipped with a Display PCB or Kit. Contact us if the whole package needs to be supplied together with a licence for the Vecoven upgrade. If you have Version 3.11 or later or PWM 4.5 or later then upgrade to current version to get the enhanced display is not necessary unless you want the latest version of Vecoven software. The ROM supplied is not windowed and cannot be erased and reprogrammed.

Voice ROM Upgrade

Ideally, to be “supply current neutral”, voice ROMs can be upgraded to CMOS types to release more current for the new display. This doesn’t apply to Vecoven PWM users, power brick option, or instruments that have had a voice ROM upgrade to correct an issue; When using Vecoven upgrade (not PWM), voice ROM upgrade is sometimes required to overcome a pitch range bug in some early versions of Roland software.

Power Brick

It powers the display independently.


  • Reduces burden on the transformer and rectifier.
  • Isolates display ground path from the instrument for best noise performance.
  • No need to remove the Roland Power Supply Board to fit a power connection.

It fits near transformer on JX10 or near power filter on MKS70. It requires wiring to the mains supply on the output of the power filter, so installers need to be comfortable with mains wiring and PAT test the instrument.

Display PCB

The display PCB can be purchased on its own so that you can use your own display. The bare PCB is also available for those who wish to source their own parts, it is all 0805 SMD soldering due to the lack of space available in the JX10.


Sourcing Your Own VFD

If you enjoy a little soldering, you can purchase the Noritake VFD separately to save money. If you don’t like soldering and still want to save money, then post it to us and we will do the soldering for you when purchasing a Display PCB. This is easier to do in Europe and more difficult in USA, contact us for assistance.

A guide explaining how to source and attach a VFD to the Display PCB for MKS70 or JX10 is here: VFD Sourcing and Attach Guide

VFD can be purchased via Telephone (they don’t respond to web or email orders!) from your nearest Noritake office as each office carries some stock. See the detailed guide on how best to obtain one and solder it to the board. When buying your own display from UK, expect to pay approximately 93 GBP inc post & tax for a GU280X16G-7806A VFD. Price can vary depending on exchange rate and country of purchase.

Price List & Stock

Description Price
Display PCB with attached & programmed PIC
-Soldering the PIC is the hard bit 🙂
25 0 Ordered on request
Display PCB Built & Tested
-Users source their own VFD. MKS70 requires cable & VFD header (see below)
62 5
Cable & VFD Header for Display PCB to fit inside MKS70 – now includes mounting hardware, adhesive pads & wires 8 3
JX10 VFD Module
-Display PCB, Mounting Pins & GU280 VFD
189 5
-Display PCB, 18cm Cable, Header, wires & hardware & GU280 VFD
197 5
Cartridge Cable Adaptor Blank PCB 6 6
Cartridge Cable Assembly, Built & Tested including 1m of aluminium shielding tape 29 0
Power Brick Blank PCB 4 1
Power Brick Built & Tested 32 0
Vecoven OS EPROM Update (per EPROM) ** 4 10


Based in UK

We are based in Wrexham, North Wales, UK and really happy to help out users and keep the Super JX up to date, it is such a magnificent sounding synth.

Items ordered are all sourced and custom made to order, in very low volume. For the very best reliability, all parts are brand new from approved distributors where they can be traced back to original manufacturers. We can supply a receipt on request (non VAT, Sole Trader only).

The development time and supply of parts and kits is just a hobby and is not intended to make any money. When GU280 displays are purchased, the cost has to include UK VAT at 20%, so apologies for the high cost when including the VFD in a full kit, but this is offered if installers have difficulty obtaining it or just want minimum hassle.

For Sale

Roland Jupiter 6 & Spare Parts

For private sale from Guy Wilkinson, a fabulous condition UK specification Jupiter 6 with Europa upgrade is available that includes many hard to find spare parts (pots, CEM/Roland ICs) are also included to keep it maintained long into the future. UK cash and collection only. Owned since 1995, full photo set of refurbishment and fitting of Europa. Skilled electronic technicians and equipment used for modifications using electronic engineering company facilities.

Some spare parts are available for the Jupiter 6 as a private sale from Guy Wilkinson. They are left over from a refurbishment project, contact us for details, pricing & shipping:

  • IR3109 Filter IC DIP Package
  • Potentiometer
  • Slider




Copyright © 2017 Super Synth Projects, Guy Wilkinson