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MT-4S 2.4GHZ FH4T RADIO SYSTEM USER'S GUIDE
T R
RPM Sensor not functioning
LCD is difficult to read
There is no LCD Backlight
LCD Backlight keeps turning OFF
Throttle servo pulsates
Model veers right or left without control input
Model accelerates without control input
Model seems extremely sensitive to control
input
Servo(s) and/or ESC don't operate at all or
operate erratically
Direction of travel shown on Servo Monitor is
different from control input travel
Can't control underscore when changing
Model Name or User Name
Can't clear Lap Timer
Steering Wheel and/or Throttle Trigger won't
center
Controls don't operate as expected
CODE Auxiliary function does not work
Cannot control Auxiliary functions
Sensor not facing reflective decal
Sensor to far away from rotating part
Not using reflective decal
Contrast setting too high or too low
LCD Backlight is turned OFF
LCD Backlight is turned OFF
LCD LIGHT-MODE is set to Key-On
ABS function is Active
Steering out of trim
Throttle out of trim
Throttle Offset function is Active
Dual Rate value(s) set too high
Controls out of adjustment
Using incorrect Servo Mode setting
This is normal
Cursor is Active in Character Select
screen
This is normal
Spring tension set too loose
Controls out of adjustment
Using incorrect receiver and/or Accessories
Auxiliary Type not selected and/or AUX1 or
AUX2 not assigned to a Trim Switch, Rotary
Dial or Auxiliary Lever
pROblEM
Mount Sensor so it faces rotating part/reflective decal
Mount Sensor closer to rotating part
Apply contrasting reflective decal to rotating part
Readjust contrast setting
Turn LCD Backlight ON
Set LCD LIGHT-MODE to Key-On or Always
This is normal to save battery power. Increase TIME
value or set LCD LIGHT-MODE to Always
This is normal under Braking with the ABS Active
Use Steering Trim Switch to adjust Steering Trim so
model drives straight
Use Throttle Trim Switch to adjust Throttle Neutral Point
Turn Throttle Offset function OFF
Decrease Dual Rate value(s)
Use the VR Adjust function to calibrate controls
Use correct Servo Mode setting based on the type of
servos you're using in your Model. Use NOR mode for
Throttle channel if using ESC
Direction of travel displayed will vary depending on
Servo Reversing settings
Press BACK key to re-gain control of underscore
Lap Timer will clear when you Start the Lap Timer again
Tighten spring tension
Use the VR Adjust function to calibrate controls
Must use Airtronics or Sanwa receiver and accessories
that support Sanwa Synchronized Link (SSL)
Must first choose Auxiliary Type and ensure AUX1 and/
or AUX2 are assigned to a Trim Switch, Rotary Dial or
Auxiliary Lever
cAUSE
SOlUTIOn
GlOSSARY OF TERMS
REFEREncE
Activate:
To turn ON a particular function.
Antenna:
Transmits the signal from the transmitter to the receiver in the model. Never touch the Antenna during use. Doing so
may result in a weakened RF signal or complete loss of control of your model.
Antenna Reception Wire:
The portion of the receiver antenna that receives the transmitter signal. The Antenna Reception Wire
should never be bent or it could be damaged and limit the range of your model.
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.
ARC:
Adjustable Rate Control (ARC) allows you to vary the amount of servo travel in relation to the movement of the steering
wheel, throttle trigger and auxiliary lever near the Neutral positions to change the way those functions react to control movement.
The position that the Rate can be controlled from is adjustable along the length of control travel.
Audible Key Tone:
An audible tone that is emitted from the transmitter each time the Push-Button Rotary Dial, Trim Switch,
Push-Button Switch or Rotary Dial is used.
Auxiliary Lever:
The Auxiliary Lever is programmable and will perform a different function depending on what function is
assigned to it. For example, it can be used to control Auxiliary 1 Channel 3 or to control the Servo Speed function. The Auxiliary
Lever features a detent and an audible tone to let you know it's in the Neutral position.
Auxiliary Lever Position Display:
Displays the current position of the Auxiliary Lever on the Top Screen.
Auxiliary Mixing:
Allows you to Mix either Steering Channel 1 or Throttle Channel 2 to Auxiliary 1 Channel 3 or Auxiliary 2
Channel 4, while maintaining separate Sub-Trim, End Point Adjustments, Servo Reversing and other channel-specific settings.
The Auxiliary Mixing function is used when a custom Mix is necessary.
BACK/CANCEL Key:
Returns to the previous menu. Press and HOLD to return to the Top Screen. In addition, cancels certain
warning alarms, such as the Low Voltage Alert alarm.
