Roland GFC-50 Owner's Manual page 29

POWER ON
Once the connections have been completed (p. 8), turn on power to your
various devices in the order specified. By turning on devices in the wrong
order, you risk causing malfunction and/or damage to speakers and other
devices.
Ensure that all connections are correct and secure. Turn the GFC-50's Power switch to
the ON or ECONOMY position. Turn on the other devices.
fig.05
About the Economy Mode
When the GFC-50 is being operated with batteries, the Economy mode can be used to
effectively extend battery life by about twice as long as usual.
The Bank Display may become somewhat dimmer and it may flicker a little, but this is
not an indication of a problem.
* The default MIDI channel of the GFC-50 is channel 1. Refer to "CHANGING MIDI
CHANNEL" (p. 13) if you want to change the default setting.
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