Spektrum SPMAR7200BX - Manual (Page 12)

EN
12
E. Setting the Tail Servo Endpoints
Adjust the limit of the tail rotor blades to achieve the best throw. The best throw is
determined by either the maximum possible control travel of the tail slider or the
maximum allowed tail rotor blade angle of attack. Make sure the tail rotor blades
move in the correct direction (see your helicopter manual for more information).
If the tail rotor blades move in the wrong direction, reverse the rudder direction in
your transmitter.
To adjust the limits:
1. Move the rudder stick in one direction until the servo reaches the maximum
endpoint without binding. If you move the servo too far, move the rudder stick
in the opposite direction and move the tail pitch slider away from the limit.
2. Release the rudder stick.
3. Once the maximum endpoint is adjusted, don’t move the rudder stick.
4. Wait for the Status LED to flash and then turn Solid Red or Solid Blue,
depending on the direction. The servo limit for one direction is saved.
5. Adjust the servo limit in the opposite direction. Move the tail pitch slider to
the other maximum endpoint and release the rudder stick.
6. The Status LED flashes, followed by Solid Purple, indicating that the servo
endpoint adjustment is complete.
ImpoRTANT: If the Status LED does not light or lights in an unexpected color, the
servo throw is too small. Move the tail linkage ball farther in toward the center of
the servo horn.
Push the setup button to save the selection and move to menu point (F).
F. Setting the Tail Sensor Direction
1. Move the helicopter nose to the right.
2. The tail rotor blades should move in the same direction as left rudder input.
3. If the tail rotor blades move in the wrong direction, you must reverse the
sensor direction.
4. Move the rudder stick once in any direction. The Status LED will change
color.
Status-LED
Red Solid Normal*
Blue Solid Reversed
5. Repeat the test as described above.
6. Push the setup button to save the selection and move to menu point (G).
*=Factory
Setting