Spektrum SPM2020 DX2 - Manual (Page 23)

23
The Sub-Trim function of the DX2 is an electronic trimming feature that allows the neutral
position of the servo on the steering, throttle 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’s suggested that less than 30 points of sub-trim be used during adjustment.
If more than 30 points of sub-trim are required, it’s suggested that a mechanical linkage
adjustment be performed.
Accessing the Sub-Trim Function
To access the Sub-Trim function, follow the steps below:
Press the MODE key until
SB-TRM appears on the screen MODE CHANNEL
ENTER
SYSTEM
Press the CHANNEL key to
select the desired channel to be
adjusted
ST = Steering
TH = Throttle
Press the INCREASE or
DECREASE keys to achieve the
desired sub-trim value
INCREASE DECREASE
CLEAR
DIRECT
+ –
1. Turn on the transmitter power switch.
2. Press the
MODE key to enter the Function Mode.
3. Press the MODE key until SB-TRIM appears in small letters to the left of the screen.
4. Press the CHANNEL key to select the channel to be adjusted
(ST= Steering, TH= Throttle).
5. Press the INCREASE or DECREASE keys until the proper servo position is achieved.
6. Press the MODE key to access the Servo Reversing function.
7. To exit the Function Mode, either turn off the transmitter power switch or press the
MODE and CHANNEL keys at the same time.
Sub-Trim
(Function Mode)
st
0
SB-TRM
Indicates curent channel:
ST = Steering
TH = Throttle
FN3 = Channel 3 (optional)
Indicates current value
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