Yamaha System66 - Component Nomenclature and Controls; Control Section Layout; External Components Identification

4EN
NOMENCLATURE/THE CONTROLS
w
Pickup Section
Battery Holder
Control Section
Output Jack
(with power switch function)
Sound Hole Cover
(supplied)
The built-in preamplifier is
automatically turned ON when
a guitar cable is connected to
the output jack. The tuner can
be turned on or off anytime.