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Symptom Cause Solution
Sound source not
active or volume set
to 0.
Try using an instrument that has a virtual
keyboard built in. Will the instrument sound
when you use that virtual keyboard? If not, the
problem may be with the software synthesizer,
not the Photon connection.
MIDI Echo not
enabled in sequencer
software.
If the Photon is both (a) connected to a
computer via USB and (b) connected to an
external sound source via MIDI OUT, be sure
that a computer sequencer program is active
and that it is set to "MIDI Echo."
An external MIDI
IN device is present.
If you are using the 5-pin MIDI OUT port to
connect to another MIDI device and another
device is connected to the Photon's MIDI IN,
the MIDI OUT port only sends information
from the MIDI IN device, not the Photon.
Photon's 5-pin
MIDI OUT not
connected to sound
source's MIDI IN.
Ensure that any 5-pin cables are connected to
the proper inputs and outputs.
Sustain pedal was
plugged in after
power was turned
on.
Turn the unit’s power off, wait a moment, and
then turn it on again.
Notes sustain
continuously.
Stuck notes due to
incomplete MIDI
data.
Try sending the Panic command by pressing
MIDI CHANNEL and MIDI PROGRAM
at the same time. If that does not solve the
problem, turn the unit’s power off, wait a
moment, and then turn it on again.
Sustain pedal works in
reverse.
Sustain pedal was
plugged in after
power was turned
on.
Turn the unit’s power off, wait a moment, and
then turn it on again.