PG-800 MINI Internal Controller for Roland JX-8P & Super JX

The PG-800 Mini is a compact controller for the Roland JX-8P and Super JX.   This kit includes one fully built and tested PG-800 MINI, a graphic overlay, all mounting hardware, and a connector cable.  Kit includes a drill template for mounting the PG-800 MINI inside of a Super JX or JX-8P synthesizer.  This kit should be installed by experienced hobbyists and professionals.  

The PG-800 Mini has all of the functions of the original PG-800, plus some new features.  The PG-800 Mini fits perfectly atop the JX-8P and Super JX synthesizers, measuring just 7.75" x 4.25" x 1.25".  5' DIN cable is included with all orders.  All units are equipped with non-slip feet to keep the unit firmly seated on any surface.  The PG-800 mini will work with all JX8P, Super JX and MKS-70 synthesizers.  The controller is also compatible with Super JX synths which have the Vecoven upgrades.  The Mini can now also operate in "Vecoven 4.x mode", which adds a Page 2 button, giving hands on control over all of the 40 extra tone parameters in Vecoven 4.x firmware, plus UPPER/LOWER BAL, and aftertouch parameters for VCF, VCA, and vibrato.  PG-800 Mini controls 92 parameters on a Vecoven upgraded Super JX.  

The PG-800 Mini features some useful functions that the original PG-800 did not have.  New functions include:

"Scratch patch" generator - Tapping a button will generate a basic scratch program, which serves as a useful starting point when creating a new tone.  

Random patch generator -  Holding a button down will generate a random tone.  This is a fun way to discover new sounds from the JX.

Copy & paste - Copy the current state of the knobs on the PG-800 Mini to save your ideas or easily transfer a tone to another program.

Page 2 - Booting up in "Vecoven 4.x" mode will turn the WRITE button into a Page 2 function.  All 40 extra tone parameters can be controlled using this function.  Parameters include all PWM, LFO2, ENV1-4, LFO sync, upper/lower balance, aftertouch vibrato amount, aftertouch VCF amount, and aftertouch volume amount.  A total of 88 parameters can be controlled with the PG-800 Mini and a Vecoven upgraded JX.  

Page 2 function chart is shown below:

Firmware updates will be made available if and when new features are added to the software.  

Schematic

 User manual & installation guide

Vecoven 4.x PWM Page 2 Parameter Chart

Muff Wiggler Build Thread (With step-by-step JX8P installation)