Roland GFC-50 Owner's Manual page 28

CONNECTIONS
fig.03
FOOT CONTROLLER OUT
To prevent malfunction and/or damage to speakers or other devices, always
turn down the volume, and turn off the power on all devices before making
any connections.
If there are batteries in the unit while an AC adaptor is being used, normal
operation will continue should the line voltage be interrupted (power
blackout or power cord disconnection).
To prevent the inadvertent disruption of power to your unit (should the
plug be pulled out accidentally), and to avoid applying undue stress to the
AC adaptor jack, anchor the power cord using the cord hook, as shown in
the illustration.
fig.04
8
Connection to another
MIDI device
MIDI IN
MIDI Cable
(optional)
(MIDI OUT)
AC Adaptor
PSA-Series