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current value; for example, if a linkage is overloaded at its end-point, or you forgot
to install it.
A matching process for three servos takes about 30 - 40 seconds. You can follow
the current consumption directly on the screen. When the matching is nished, use
the transmitter stick to run the servos to all ve points. A quiet buzz from the servos
in one or other position is normal. If the buzzing stops when you touch the control
surface lightly with your nger, then this shows that the matching process has wor-
ked accurately.
Minor corrections can be carried out at any time under Manual Matching. It is a
good idea to check the servo matching occasionally before and during the ying
season, as servos and mechanical systems are always prone to slight drift in use!
8.DOOR SEQUENCER
The PowerBox Mercury SR2 incorporates a fully programmable door sequencer.
This feature enables you to control the entire process for retracting and extending
the undercarriage and wheel doors using a single channel at the transmitter.
The Sequencer menu is divided into three parts: selection of the function, the actual
set-up screen for manual set-up using the graphic display, and the Setup Assistant.
The illustration above shows the start of the Sequencer once you have initiated the
Assistant. This is clear because the name of the function is shown as DOOR-FL
rather than DOOR-A. The Assistant actually assigns names to the doors according
to your entered data, making subsequent adjustments easier. More on this later.
Regarding the individual menu points:
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