Futaba FX-40 - Manual (Page 121)

121 <Model Menu (Helicopter Functions)>
Governor mixing
This is used to switch the RPM of the helicopters
head. Up to 3 rates can be set for each condition.
*The governor is used by connecting the governor speed
setting channel to CH7 (initial setting).
*When using an independent governor [ON]/[OFF] switch,
connect the AUX([ON]/[OFF]) connector of the governor to
CH8 (initial setting) and set the switch to CH2 (Governor2)
at the Function menu of the Linkage Menu.
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*When using the Fuel Mixture function, the mixture servo
is controlled from the governor. When transmitting the
mixture curve data from the transmitter to the governor, the
governor AUX (m.trm) connector must be connected to CH8
(initial setting) and governor side setting performed. See the
governor instruction manual.
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*VR selection, adjustment width, and adjustment direction
can be set.