ROYAL evo 
 
  Page 68   
  Tip: 
Threading the wires is easier if you slightly bend the 
wire-ends and hold the stick in one of the corners. 
3.  Clip the wires in the holders designed for them on 
the stick unit. Check that the wires have sufficient 
freedom when the stick is deflected; they must not 
be under tension at any point, and should not snag 
anywhere. 
4.  Connect the bare wire ends to the appropriate 
green screw-terminals on the main circuit board; 
you will need a small slot-head screwdriver for this. 
Remove the battery and push the wires in from the 
battery-facing side of the terminals. It does not 
matter which way round the wires are connected. 
Fig. 1 
 
Fig. 2 
 
7.4.11. Installing the optional switches “P” and “K” 
If you need extra functions 2-position switches can be 
installed in the installation wells “P” and “K”. To fit them 
the corresponding corner unit must be removed from 
the transmitter: 
1.  Locate the TORX screwdriver (in a clip below the 
aerial guide sleeve, close to the screen) and undo 
the four TORX screws holding the appropriate stick 
unit (Fig. 1). 
2.  Check that the switches are at the centre position, 
then carefully withdraw the corner unit from the 
transmitter. Remove the rotary knob (push-fit) from 
the 3-D digi-adjustor when you withdraw the unit 
(Fig. 2). 
3.  Use a small screwdriver to push out the blind cover 
from the inside. 
4.  Fit the switch and secure it with the retaining nut 
supplied (Fig. 3). Note the correct orientation: the 
yellow wire should face the battery. 
5.  Re-install the corner unit, fit the retaining screws 
and push the rotary knob back onto the 3-D digi-
adjustor (note correct position: internal index 
shoulder). Connect the plug attached to the new 
switch directly to the micro-connector on the cor-
ner unit (Fig. 4). 
Fig. 1 
 
Fig. 2 
 
Fig. 3 
 
Fig. 4 
 
8. The transmitter battery 
The ROYALevo is powered by a high-quality ready-made 
battery pack consisting of 6 NiMH cells (Nickel-Metal-
Hydride) of the AA size. NiMH cells offer a much higher 
energy density (capacity : weight) than NiCd (Nickel-
Cadmium) cells, and therefore provide longer operating 
times for the same weight. They do require slightly dif-
ferent handling and greater care, especially when 
charging. 
8.1. Battery management in the ROYALevo  
8.1.1. This is what we have already 
Battery voltage display 
 
Most transmitters show the battery voltage in graphic 
or numeric form. 
Battery alarm  
An audible alarm indicates the voltage falling below the 
minimum level. In many transmitters the minimum level 
can be set by the user. 
Both features are available in the ROYALevo of course. 
(Battery alarm è 13.1.3.)