MULTIPLEX
Connect the individual servos to the receiver in the
sequence shown above.
7.8 Mode switching
Basically there are four methods of assigning the
control functions aileron, elevator, rudder and throttle
to the two dual-axis sticks of the SMART SX transmit-
ter. Which of these options is used varies according to
the personal preference and habits of the model pilot.
The stick modes are defined as follows:
Mode 1: Right stick Throttle vertical
Aileron horizontal
Left stick Elevator vertical
Rudder horizontal
Mode 2: Right stick Elevator vertical
Aileron horizontal
Left stick Throttle vertical
Rudder horizontal
Mode 3: Right stick Throttle vertical
Rudder horizontal
Left stick Elevator vertical
Aileron horizontal
Mode 4: Right stick Elevator vertical
Rudder horizontal
Left stick Throttle vertical
Aileron horizontal
The SMART SX transmitter is available in two ver-
sions, each offering two stick modes. When you pur-
chase your set you must decide on one of the com-
binations, which is determined by the non self-cent-
ring throttle function.
• SMART SX M-LINK Mode 1 + 3 (# 15300, 15310)
• SMART SX M-LINK Mode 2 + 4 (# 15301, 15311)
The stick mode can be changed within the selected
combination. The first set (# 1 5300) can be switched
between Mode 1 and 3. The second set (# 1 5301)
can be switched between Mode 2 and 4.
If you wish to change the stick mode, please use this
procedure:
Locate the stick with two self-centring planes (no throttle
function), and move it to the top right corner, then press the
multi-function button for a period of three seconds: you will
now hear an audible signal; the number of beeps indicates
the new stick mode. It is only possible to swap rudder and
aileron, as shown above, since the throttle function and the
elevator are permanently
assigned, depending on the
set you have purchased. The
setting is stored permanently
for each model.
7.9 Servo reverse
The direction of servo rotation can be changed for the three
control surface functions (= all except throttle). If any con-
trol surface operates in the wrong direction, it is a simple
matter to reverse the direction of operation for that function.
Locate the stick for the control
function you wish to reverse,
move it to one end-point, and
hold the multi-function button
pressed in for a period of three
seconds, i.e. until the servo
switches to the opposite end-point. It will now respond in
the desired direction. Servo reverse is not necessary for the
throttle function, as the system always controls a speed
controller the “right way round”. The setting is stored per-
manently for each model.
7.10 Activating / disabling the throttle function
Regardless of the throttle stick position, the throttle channel
is initially disabled when the transmitter is first switched on:
your model’s motor remains off. To control the motor in
your model you must first unlock and activate the throttle
channel. You can also disable the throttle again after the
landing.
To activate the throttle function you must press the throttle
stick button once briefly, and move the throttle stick fully
back to the “Off” position. You will a rising signal.
To disable the throttle function, press the throttle stick but-
ton again. You will hear a rising signal, and the motor is
switched off until the throttle channel is re-activated.
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