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 = 15

Roland JD-990 Super Editor

An Editor for the Roland JD-990.

      • Includes full drop-down menu access to to the SR-JV80-04 Expansion card patches and waveforms if installed.
      • Selected SR-JV80-04 patches for JV Series and JD series are loaded into Patch Mode/Temporary Patch.
      • Emulation of simultaneous editing of all four voices per patch as in Palette Mode on JD-990 (except for wave-forms)
      • Edits/Changes to a temporary patch can be saved as an external sysex file.
      • Writing patch changes to JD-990 must be done on the machine.
      • Tested in standalone mode only with  [Ctrlr 5.3.201 (Recommended)  &  Ctrlr Version 5.5.2] ::  Windows 10].
      • For Bulk Sysex dumps use  the  JD-990 Sysex Dump Utility  utility, which will eventually be included in a later version of this program.

Comments and suggestions  welcome.

Version History and Change-log:

  • Version 1.00 (07/10/2018) Changed Checksum function
  • Version 0.99 (07/04/2018) Checksum error fix
  • Version 0.98.5 (12/15/2017) Minor code fixes
  • Version 0.98 (10/13/2017) First release
Download 428.3 KB

Downloads = 541

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