Sub Trim; Travel Adjust - GRAUPNER MX-12 Programming Manual

Function mode AIRPLANE
Sub Trim; Travel Adjust
3. Press either the Up or Down key until TRAVEL
ADJ appears in the upper portion of the LCD.
4. Using your transmitter`s control sticks, switches and
potentiometers, move the control surfaces of your
aircraft. Note the travel direction of each of the
corresponding control surfaces.
5. After you have determined which channel(s) need to
have the throw directions reversed, use the Select
key to call up the appropriate channel.
6. Press either the (+) or (-) keys to change the travel
directions of the servo. Pressing the Clear key re-
turns the travel direction to Normal.
7. You can observe the change in the travel direction
by moving the appropriate control at this time.
8. Access the D/R & EXP function by pressing the
Down key.
9. Access the SUB TRIM function by pressing the Up
key.
10. Exit the SERVO REVERSING function by pressing
the Down and Select keys simultaneously.

Sub Trim

Channel being programmed
THRO 1: THROTTLE
AIL 2: AILERON
ELE 3: ELEVATOR
RUD 4: RUDDER
GEA 5: GEAR
FLA 6: FLAP
The Sub Trim Adjustment function allows you to electro-
nically fine-tune the centering of your servos. Individual-
20 Function mode AIRPLANE
ly adjustable for all six channels with a range of +/-
125% (+/- 30 degrees servo travel).
The sub trim function provides precise servo arm neutral
positioning if rotating the servo arm will not allow the
desired servo arm position.
Go to Travel Adjust
menu
Go to reversing SW
menu
Select channel
Accessing the Sub Trim Function
1. Place the transmitter power switch in the ON positi-
on.
2. To Access the Function mode, press the Down and
Select keys simultaneously.
3. Press either the Up or Down key until SUB TRIM
appears in the upper middle portion of the LCD.
4. Press the Select key until the desired channel
appears.
5. Press the (+) or (-) key to establish the desired
amount and direction of Sub Trim.
Caution: Do not use excessive Sub Trim adjustments
since it is possible to overrun your servo`s
maximum Sub Trim. Remember that it is a trim
convenience function.
It is not intended to take the place of the
proper mechanical trim adjustments that are
necessary on any RC model.
Travel Value
(0~150%)
6. Access the REVERSING SW function by pressing
the Down key.
7. Access the TRAVEL ADJ function by pressing the
Down key.
8. Exit the SUB TRIM function by pressing the Down
and Select keys simultaneously.

Travel Adjust

Change value
Channel being programmed
THRO 1: THROTTLE
Reset selection to
AIL 2: AILERON
default (Adjust to 0)
ELE 3: ELEVATOR
RUD 4: RUDDER
GEA 5: GEAR
FLA 6: FLAP
The purpose of Travel Adjust is to offer you precise
servo control deflection in either direction of servo
operation. The mx-12 offers travel adjust for all six
channels. The Travel Adjust range is from 0-150% (0 de-
grees to 60 degrees) from neutral, or center, and it can
be adjusted for each direction inividually. The factory
default (Data Reset) value is 100% for each direction of
servo travel.
Go to Ele F MX menu
Go to Sub Trim menu
Select channel to
Adjust
Accessing the Travel Adjust Function
1. Place the transmitter power switch in the ON positi-
on.
2. Access the Function mode by pressing the Down
and Select keys simultaneously.
3. Press either the Up or Down key until TRAVEL
ADJ appears in the upper portion of the LCD.
4. Press the Select key until the desired channel is
Travel Value
(0~150%)
Change value
Reset value to
Normal (Adjust to
100%)