Troubleshooting; Octave Down - Yamaha EMT-1 User Manual

[ Transmitting the EMT-1 Settings
2. Release the MIDI button.
6 | Troubleshooting
is faulty.
Symptom Possible Cause
e External amplifier power not on or volume turned down.
MIDI System Exclusive Message
OCTAVE DOWN: nnH = 31H
13