Super JX Patch Reader
Super JX Patch Reader - Release Notes
All images, text, JavaScript and HTML Code ©1995- by llamamusic.com


Version 1.0 (βετΔ) - 10/31/2026
   • Initial Release

OVERVIEW
The purpose of this utility is to encourage Patch and Tone sharing and to placate the curiosity of the nerdy Super JX crowd when drilling down into the core architecture. The Super JX Patch Reader is a self-contained browser utility for owners of the Roland JX-10 and MKS-70. It reads a standard SysEx bulk dump file (.SYX) and presents a complete compilation of all Patch and all Tone parameters — 64 Patches and 50 Tones — as clear, searchable tables. No installation, network connection, account, or external library is required: the entire application is a single HTML/Javascript document with all markup, styling, and logic contained within. There is a handy "Print" button to generate a one‑page PDF file for a Patch and it's two associated Tones

FULL BULK DUMP SUPPORT
This Patch and Tone viewer recognizes both the 53-byte Advanced Patch RAM (APR) record format and the 48-byte compact bank format, including nibble-split (7-bit packed) data streams, so files saved from either a JX-10 or an MKS-70 will load correctly

COMPLETE PARAMETER DECODING
Every Patch and Tone parameter is displayed with its readable value — Oscillator Ranges and Waveforms, Filter and Envelope settings, Key Assign modes, Chase and Portamento behavior, and much, much more — following the value-conversion (Hex converted to Decimal) definitions published in the MKS-70 SysEx Primer Series (Parts I, II & III)

DETAILED PATCH VIEW
Clicking on a Patch name will open a dedicated web page showing that Patch's parameters alongside the full parameter sets for its linked A Tone (Upper) and B Tone (Lower), with the Tone names and parameters resolved automatically

PRINT READY SUPPORT
The detailed view includes a print layout that reproduces the Patch and its two associated Tones on a single PDF page

FAST NAVIGATION
Separate Patch and Tone tabs, an instant name filter, and a "back-to-list" control keep large SysEx dumps easy to browse

ZERO DEPENDENCIES
This utility contains no external links, images, scripts, or stylesheets. It can be saved locally and opened directly from a local hard drive, SD Card, USB Stick, etc... and it will continue to work entirely offline

KNOWN LIMITATIONS
  • Internal Tones #51 through #100 are not present in a JX‑10 or MKS‑70 Bulk Dump file. All 50 of those Tones are hardcoded in the ROM and therefore are not saved to a *.SYX file. This is the default when using factory ROM's and thus, those 50 Tones are not displayed by this utility. Perhaps this feature will be added in a future release

  • Web browsers work perfectly when generating a PDF file (Firefox, Opera, Brave, Chrome, etc...). However, one browser does not play nice when generating a PDF file for printing (Safari... hint, hint). You may need to adjust the scaling when trying to fit everything on one page when using Safari

  • MIDI parameters are not included because those are also not not present in a JX‑10 or MKS‑70 Bulk Dump file. Besides, these are not really useful parameters to share with others since those MIDI settings are more of a personal preference when recording in a studio or playing live i.e... MIDI Settings are usually different for every Super JX owner

  • This utility only works with SysEx files created with JX‑10 ROMs v1.72 through v3.xx  ‑or‑  MKS‑70 ROMs v1.04 through v3.xx
    (Vecoven 4.xx ROMs are not supported... yet. Stay tuned)



Notes
SYSEX_READER

  • When using this utility on a Mac system, to speed up the load process, open a Finder window and search for *.SYX files. Drag one file at a time from the Finder window directly onto the "Choose File (Safari/Chrome)" or "Browse (FireFox)" button in the browser utility. The file will then be read automatically without having to drill down and search through several directories (click for larger image)




Questions & Answers

Q: Is there any way to run this utility offline without being connected to the Internet?
A: Absolutely! It's quite easy.
Simply right‑click on the weblinks Super_JX_Patch_Reader.html and Super_JX_Patch_Reader_Release_Notes.html, use the "Download Linked File As..." option within your browser and save these two files to a folder on your hard drive. Everything will work exactly the same. To make it look identical with all the original images, right‑click and use the "Save Image As..." option and save these seven images in the same folder as the HTML files:
         PRG_icon.jpg         homzone_inverse.jpg      sysex_Drag_and_Drop.jpg          llamamusic_QR_Code_PayPal.jpg          
         text_icon.jpg        llama_icon_left.jpg      paypal_donate_smaller.jpg     
         computer_bug.gif     llama_icon_right.jpg     sysex_Drag_and_Drop_icon.jpg
         
I designed this as an online utility for three reasons:
        1) No software to install
        2) It's easier to distribute this way as a simple webpage
        3) The most current version will always available online



If you find some of this DIY info useful, please consider donating a small amount. All donations are used for future DIY sampler development and free info. Thanks!

SUPER-JX ZONE
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SUPER JX ZONE

llamamusic@hotmail.com
(If you want to report a bug or have a feature added, let me know)


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