Servo-Match Function - PowerBox Systems Champion SRS Instruction Manual

Connect the nosewheel door servo to output F. Press the SET button to close the nosewheel door; repeat the
procedure in the next set-up screen to open the door.
In the next series of steps the second nosewheel door and the rear wheel doors are set up. The procedure is
identical to that described for the first nosewheel door. The servo for the second nosewheel door is connected to
output E, that for the right-hand wheel door to output B and that for the left-hand wheel door to output C.
Note: if you are only using one valve for all the wheel doors, you can by-pass the last four points by selecting
OK.
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All the settings are now complete, and you will see one final safety query:
Move your transmitter switch to the "gear down" position. It will now take a few moments for the Assistant to
create the necessary tasks, and move the doors to the correct position without any fouling or jamming.
The tasks created by the Assistant are described in detail under Point 7. If the timing (pauses, opening times and
closing times) is not exactly as you wish, you can change the settings manually at any time. You will find further
information on this matter in the FAQ section of our Forum.

4. SERVO-MATCH FUNCTION

The Servo-Match function provides the facility for adjusting the centre position and end-points of the servos
connected to the backer. If you have a model aircraft with more than one servo per control surface, this makes
it possible to set up multiple servos to move to identical positions at identical times. Since this ensures that the
servos do not work against each other, their effective life is increased, and more power is available to move the
control surfaces; matched servos also draw lower current.
It is also possible to reverse the direction of rotation of individual servos. This function is useful if you wish to
employ fewer channels at the transmitter. For example, the right and left elevators, or the right and left landing
flaps, can be controlled using only one radio channel. In models such as jets and warbirds, which by their nature
have a large number of working systems, this feature can be very important, but it can also make transmitter
programming much easier with other types of model.
Select SERVO-MATCHING in the Main menu, and the
following screen display appears:
The screen displays a graphic representation of the
block of output sockets, the identifying letter for each
output, and the function assigned to that output. In-
itialised outputs are marked by an I; channels which
have already been matched by an M.
Select the channel to be matched using buttons I and
II, then confirm your choice with the SET button. The
following display now appears:
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