
19
MX
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V 3
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CHANNEL 2.4GHZ RADIO SYSTEM USER'S GUIDE
TROUbLESHOOTING GUIDE
This troubleshooting guide can help you diagnose and solve some of the more common problems that you may encounter with
your MX-V 3-Channel 2.4GHz FHSS-2 radio control system. If you cannot solve the problem using this troubleshooting guide, please
contact Airtronics Customer Service using the information in the
Service and Support
section on page 3.
Transmitter does not turn ON
Transmitter will not bind to receiver
Receiver won't power ON
Audible alarm beeps continuously
Servo movement is slow
Servo does not move when using Trim Switch
Inadequate transmitting range
Servo(s) move the wrong direction
Servo Horn(s) not centered
Control linkage(s) bind
LCD appears dark or hard to read
Throttle servo pulsates
Model veers right or left without control input
Throttle servo or ESC moves to programmed
position without input
Cannot select characters when naming model
Batteries not installed correctly
Batteries are dead
There's an internal problem
Modulation Type incorrect
Too much time elapsed after pressing
receiver Bind Button
Attempting to bind incompatible receiver
Using electronic speed control
Batteries not installed correctly
Batteries dead
Loose switch connection
Low transmitter battery voltage
Low receiver battery voltage
Control linkages binding
Trim is outside of operational range
Low transmitter battery voltage
Low receiver battery voltage
Receiver antenna not mounted correctly
in your model
Incorrect Servo Reversing setting
Servo horn not installed correctly
Servo Sub-Trim out of adjustment
To much servo travel
Transmitter left in direct sunlight too long
ABS function is ON
Steering out of trim
Throttle out of trim
Not using steering wheel
PRObLEM
Reinstall batteries, observing correct polarity
Replace batteries
Contact Airtronics Customer Service
Change Modulation Type to match receiver
Quickly press the transmitter Bind Button after
releasing the receiver Bind Button
Use only Airtronics 2.4GHz FHSS-2 surface receivers
Disconnect ESC and use dry cell battery for binding
procedure, then reconnect ESC after binding
Reinstall batteries, observing correct polarity
Replace or recharge batteries
Double-check all connections including switch
Replace transmitter batteries
Replace or recharge receiver batteries
Adjust control linkages to operate smoothly
Reset trim to zero and center the servo horn and
control linkages
Replace transmitter batteries
Replace or recharge receiver batteries
Mount receiver antenna as recommended
Change Servo Reversing setting
Turn servo horn 180º and reinstall
Adjust Servo Sub-Trim to center servo horn
Decrease servo travel using EPA function
Place transmitter in shade.
This is normal under braking with ABS function ON
Use Steering Trim Switch to adjust Steering Trim so
model drives straight
Use Throttle Trim Switch to adjust Throttle Neutral point
Turn steering wheel right or left to highlight desired
characters
CAUSE SOLUTION
GLOSSARY Of TERMS
Activate: To turn a particular function ON.
Antenna: Transmits the signal from the transmitter to the receiver in the model. The antenna is mounted internally and is located
in the front portion of the transmitter. Do NOT cover the front of the transmitter in any way during use! Doing so can block the RF
signal, resulting in the loss of control of your model.
Antenna Wire: Receives the transmitter signal. The antenna wire should be installed through a nylon tube (antenna tube) in the
vertical position for the best reception. Do not alter the length of the antenna or the operation of the receiver will be compromised.
Auxiliary Lever: Controls Auxiliary channel 3 High and Low servo travel.
Anti-Lock Braking: Makes it possible to achieve stable braking even on slippery surfaces. With stable braking, your model is
better able to trace an exact line under braking.
Battery Compartment: Houses the four 'AA' Alkaline cells that power the transmitter. Alternatively, the transmitter can be powered
using four 'AA' Ni-Cd or Ni-MH rechargeable batteries or a 2S Li-Po or 2S Li-Fe battery pack.
Battery Eliminator Circuitry (BEC): A circuit typically found in an electronic speed control that eliminates the need for a separate
receiver battery by using the battery pack that powers the model to also power the receiver and the servos.
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