❑ Have you connected the ZERO4 to a FireWire repeater
hub?
Connect only a single ZERO4 to your computer, and check whether
the noise disappears. Depending on your system, noise may occur if
numerous audio devices are connected to your computer. If so, connect
only the ZERO4 to your computer.
❑ Are you using a FireWire (IEEE 1394) device other than
the ZERO4?
If the ZERO4 is connected to an external FireWire hard disk, you
should re-connect the ZERO4 directly to the FireWire connector
(IEEE1394 connector, iLink connector, DV connector) of your com-
puter. Turn off the power of all FireWire devices other than the ZERO4.
❑ While using the ZERO4, could you have performed a
task that involved a heavy processing load, such as ac-
cessing the CD-ROM drive or the network?
The system may not work correctly if a heavy processing load occurs
while using the ZERO4. Stop recording/playback, and then resume
recording/playback. If you are still unable to play/record correctly,
exit all software and reconnect the ZERO4.
If you're using Windows, you may be able to solve the problem by ad-
justing the buffer size in the KORG FireWire Audio/MIDI driver set-
tings.
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2. Error messages
• BUSY
A large amount of incoming MIDI data is being processed. While this
message is displayed, the faders and knobs will be temporarily inoperable.
Please wait for this message to disappear before you continue operation.
•
E402
More MIDI data was received in a short time than could be processed suc-
cessfully. Please avoid sending unnecessary MIDI data.
• E ???
This message will appear if the ZERO4 has a problem or malfunction. If
this message appears, make a note of the ??? text, and contact customer
service.