[ITALion]

Probabilmente gia' lo sapete, ma io ve lo ripropongo perche' a me e' venuto utile proprio in questi giorni.
Per centrare o calibrare gli stick e per altre funzioni e' possibile accedere ad un menu' nascosto al quale si accede secondo queste istruzioni (in inglese, ma vi faro' presto una traduzione):

Ensure the Aileron D/R switch is in the UP position.
Press and hold the DOWN and SELECT buttons and turn on radio. Now you're in the setup menu.
Scroll up/down until you get to the screen that says [Model Reset]
Press the Adjust Descrease button (r/h side of LCD)
Flip the Aileron D/R switch down
Press the Adjust Increase button
Flip the Aileron D/R switch up
Press the Adjust Descrease button
Keep alternating this Aileron D/Rup/down and Adjust Increase/Decrease sequence (about 5 cycles as Hilgert said)
The radio will 'beep' and the LCD will go dark. This is the LCD test.
Scroll Up/Down (left side of LCD screen) through the Service Menu (at your own risk)


Spektrum DX7 stick centering.


On the Stick Center? page, center all the sticks and let go! Press the CLEAR button.

On the next page (it lists 3 hexadecimal values for each of ST1, ST2, ST3 and ST4). Use the select button to select an axis. Ex: Throttle is ST3. Move the throttle to full up position, press CLEAR. Move the throttle to full down, press CLEAR. Repeat for each axis.

Now your center points and end points are calibrated!

When you are done, go to the All Settings OK? page and press CLEAR