Spektrum SPM20220 DX2.0 - Manual (Page 11)

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The Endpoint Adjustment feature of the DX2.0 allows the maximum travel of both the steering
and throttle servos to be increased or decreased in each direction to achieve the exact servo
movement needed. The Endpoint Adjustment range is from 0% to 125% and is factory set to
100% for both channels. The value displayed on the screen depends on the current position
of the steering wheel, trigger, or trim lever to be adjusted. This feature is very useful either to
maximize servo travel or to reduce servo over-travel to eliminate servo binding (servo moves
further than control mechanism allows), without the need for mechanical linkage adjustment.
The screens below are accessed by turning the wheel to the desired direction to be adjusted
(left or right), by moving the trigger to the forward or backward (brake) position, or by
moving the Grip Lever A to the forward or back position.
Accessing the Endpoint Adjustment Function
1. Turn on the transmitter power switch.
2. Press the
SCROLL key to enter Function mode.
3. Press the SCROLL key until EPA appears in small letters on the left side of the screen.
4. Press the CHANNEL key to select the desired channel to be adjusted.
Steering = ST R/B (steering right) or ST L/F (steering left)
Throttle = TH L/F (forward) or TH R/B (braking or reverse)
5. Move the steering wheel or trigger in the desired direction for adjustment (left/right,
forward/reverse or brake). Press the INCREASE or DECREASE key to achieve the
desired amount of travel. Move the wheel or trigger in the opposite direction to adjust
the travel in the opposite direction.
6. Press the SCROLL key to access the Sub-Trim Function.
7. To exit the Function Mode, either turn the transmitter power switch off or press the
SCROLL and CHANNEL keys at the same time.
Note: When setting the endpoint adjustment values for the steering function, it is suggested
that, if possible, the maximum travel values be set to an equal value in both directions to
maintain proper steering control.
Endpoint
Adjustment
(Function Mode)
L/F
I00
st
–
I00
E P A
tH
E P A
Current Value
Values: 0 to 125
Clear = 100
L/F
Steering Left
Endpoint Adj
Current Value
Values: 0 to 125
Clear = 100
Forward Throttle
Endpoint Adj
R/B
I00
st
–
I00
E P A
tH
E P A
Current Value
Values: 0 to 125
Clear = 100
R/B
Steering Right
Endpoint Adj
Current Value
Values: 0 to 125
Clear = 100
Backward Throttle
(Brake)
Endpoint Adj
The Sub-Trim function of the DX2.0 is an electronic trimming feature that allows the neutral
position of the servo on either the steering or throttle channel to be moved, while allowing
the electronic trim lever for that channel to remain in the center position. This feature is very
useful, as it allows the servo arm/wheel position to be moved to help with control linkage
installation, eliminating the need to make mechanical linkage adjustments. Although the
Sub-Trim function is a very useful feature, it is suggested that only small amounts of sub-
trim be used so that no unwanted, non-equal servo travel is created. It is suggested that less
than 30 points of Sub-Trim be used during adjustment. If more than 30 points of Sub-Trim
are required, it is suggested that a mechanical linkage adjustment be performed.
Accessing the Sub-Trim Function
1. Turn on the transmitter power switch.
2. Press the
SCROLL key to enter the Function Mode.
3. Press the SCROLL key until TRIM appears in small letters to the left of the screen.
4. Press the CHANNEL key to select the channel to be adjusted
(Steering, Throttle).
5. Press the INCREASE or DECREASE key until the proper servo position is achieved.
6. Press the SCROLL key to access the Servo Reversing function.
7. To exit the Function Mode, either turn off the transmitter power switch or press the
SCROLL and CHANNEL keys at the same time.
Sub-Trim
(Function Mode)
Values: R/B 125 0 R/F 125
TRIM
stS
–
0
–
Indicates current channel:
STS = Steering
THS = Throttle
Indicates current value