Roland JD-990 Sysex Dump Utility

A Sysex Bulk Dump Utility for the Roland JD-990.

    • Downloads Internal Patches I-11 – I-88 (64 x patches).
    • Can upload sysex files back to the JD-990.
    • Features progress bar and cancel button.
    • Transfer times can be changed (recommended 360~400ms download and ~150ms upload according to my tests but that may depend on your setup).
    • A full dump should be 33216 bytes.  If you get a “MIDI Buffer Full” notice on the JD-990, increase the Transfer Rate.
    • Tested in standalone mode only with  [Ctrlr 5.3.201 (Recommended)  &  Ctrlr Version 5.5.2] ::  Windows 10].
    • This functionality will be eventually included in the JD-990 Super Editor.


  • Version 1.1 (07/09/2018) » re-written checksum function; minor interface error fixes
  • Version 1.0 (07/06/2018)
Download 64.6 KB

Downloads = 23

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