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Fix / Korg Prophecy

Prophecy keyboard makes no sound after a MIDI setup

The keys still transmit MIDI, but the Prophecy itself is silent.

Manufacturer documented

Published by MIDIrock.xyz · About Pete and the site · Page updated

Fast answer

Check GLB-8 [MIDI] → Local. Set it to ON to reconnect the keyboard to the internal sound engine when you are playing the Prophecy directly.

Try these checks

  1. Open GLB-8 [MIDI] and inspect Local Control.
  2. If you are playing without a sequencer echoing notes back, set Local to ON.
  3. Play a key, then check the volume and audio/headphone connection if the instrument remains silent.

Diagnose it

Is Local set to OFF?

Yes: Set Local to ON for direct keyboard playing.

No: Check audio/headphone connections and Master Volume as Korg's troubleshooting table advises.

What should happen

The keyboard plays the Prophecy's internal sound engine directly.

Why this happens

With Local OFF, the keyboard is disconnected from the tone generator while MIDI OUT continues to transmit.

If it still doesn’t work

Check the connections and settings described above. If your device behaves differently, email us with its model, firmware version and the steps you tried.

All Prophecy fixes

More about Prophecy

Korg Prophecy guide · MIDI reference

Similar symptoms on other gear

These guides cover other models. Use the instructions for the device you are setting up.

References

Sources & review

Sources reviewed: . Documentation does not replace a physical hardware test.

Sections reviewed: GLB-8, p. 139; Troubleshooting, p. 175.