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

Function mode HELICOPTER
Sub Trim; Travel Adjust
corresponding control surfaces.
5. After determining 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
direction of the servo. Pressing the Clear key returns
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

The Sub Trim Adjustment function allows you to electro-
nically fine-tune the centering of your servos. Individual-
ly adjustable for all six channels with a range of +/-125%
(+/- 30 degrees servo travel).
The sub trim functions provide precise servo arm neutral
positioning if rotating the servo arm will not allow the
desired servo arm position.
Channel beeing programmed Sub Trim Value
TH 1: Throttle (0~+/-125)
AI 2: Aileron
EL 3: Elevator
RU 4: Rudder
GE 5: Gear
PI 6: Pitch
Go to travel Adj
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.
6. Access the REVERSING SW function by pressing
the Down key.
7. Access the TRAVEL ADJ function by pressing the
Up key.
8. Exit the SUB TRIM function by pressing the Down
and Select keys simultaneously.

Travel Adjust

The purpose of Travel Adjust is to offer you precise ser-
vo control deflection in either direction of servo opera-
tion. The mx-12 offers travel adjust for all six channels.
The Travel Adjust range is from 0-150% (0 degrees to
60 degrees) from neutral, or center, and it can be ad-
Change value justed for each direction individually. The factory default
(Data Reset) value is 100% for each direction of servo
travel.
Reset selection to
default
Channel beeing programmed
TH 1: Throttle
AI 2: Aileron
EL 3: Elevator
RU 4: Rudder
GE 5: Gear
PI 6: Pitch
Go to Swash Mixing
or Throttle cut 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
highlighted.
5. Move the appropriate control stick (lever, switch,
etc.) to right or left of the center to the direction of
travel you want to adjust value will reflect the current
position to be adjusted
6. After the control stick or switch is placed in the dir-
Function mode HELICOPTER
Travel value
(0~150%)
Change value
Reset value to normal
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