User Manual
76 Appendix D: Troubleshooting and Support
Dave Smith Instruments
If the Prophet Rev2 is behaving erratically.
• This is almost always caused by a MIDI data loop. Make sure that any
MIDI Thru functionality is turned off on the MIDI interface/hardware
or in the MIDI software application. Disconnect all the Prophet Rev2’s
MIDI connections—MIDI and USB cables—and see if the problem
persists. You can also monitor the MIDI trafc with MIDI Monitor
(Mac OS) or MIDI-OX (Windows) to see if the Prophet Rev2 is being
overrun with duplicate messages.
If the Prophet Rev2 doesn’t seem to respond to its controls:
• Make sure local control is on in the global menu.
If MIDI System Exclusive data is not transmitted/received:
• Make sure that the midi sysex cable setting in the global menu is set
to usb or midi depending on which you are using to transmit or receive
MIDI messages.
If the Prophet Rev2 plays out of tune:
• Check the master coarse and master fine parameter in the global
menu. If they seem correct, you may need to retune the oscillators. See
“Calibrating the Oscillators and Filters” on page 66.
If the pitch or mod wheel doesn’t go to full range:
• Recalibrate the pitch and mod wheels. See “Calibrating the Pitch and
Mod Wheels” on page 66.
If the lter sounds strange or out of tune:
• You may need to retune the lters. See “Calibrating the Oscillators and
Filters” on page 66.