iKarus Piccoboard Mode D'emploi page 4

You will need these components:
4 crimp sleeves (not included in set)
A apir of flat nose pliers
shrink tubing (not included in set)
knife and pair of scissor
heat source (i.e. heat gun)
In order to guarantee the correct function of the Piccoboard,
please follow thes instructions in this section carefully.
The standard Piccoboard features four cables (in the colors 2
x red, 1 x blue, 1 x black), which already have been stripped
off their insulation on either end (picture 1).
The functional reference is:
Color Function
Red
Black Main motor- pole 0.25 mm²
Red
Blue
picture 1
First we connect the cables to the main motor.
Using your thumb and pointing finger you twist together the
copper wires of the 0.25 mm² red cable coming from the main
motor with the 0.25mm² red cable coming from the
Piccoboard (picture 2).
Now you slide on the crimpers all the way up to the wire
insulation (picture 3).
picture 3
Using the pair of flat nose pliers you firmly pinch the crimps
until they are attached absolutely firm to avoid connection
problems such as glitches (picture 4)
After having made the connections between main motor and
Piccoboard we now need to insulate the cable with the shrink
tubing. Make sure to use red shrink tubing for red cable,
black to black and so on. The cut off piece of shrink tubing
should extend the length of the crimp, in our case it is 10 mm
long.
Now slide the shrink tubing over the crimped area of the
cable and let it extend by about 4 mm (0.16") (picture 5).
Now shrink the tubing by applying heat with the heat gun.
Carefully adjust the temperature to avoid damage to the
cable.
Repeat the procedure with the tail motor and Piccoboard and
match the color coded wires (0.14 mm²) red to red and blue
to blue.
picture 5
cable dia.
Main motor + pole 0.,25mm²
Tail motor + pole 0.14 mm²
Tail motor - pole 0.14 mm²
picture 2
picture 4
picture 6
The Piccoboard and the two servos have to be connected to
the receiver according to the stick mode of your transmitter.
For reasons of safety separate the main rotor from the main
motor. Loosen both screws of the motor and move it back.
Pull off the tailrotorblade. Plug the throttle control connector
in the receiver; also plug the tail rotor control connector into
the adequate socket. Then connect the two servos to the
receiver. Take care of the plugs engaging correctly on the
pins. If you are not sure of your stick mode you can find it out
by using just one servo:
Connect the servo to each socket of the receiver and move
the sticks of your transmitter. To supply the receiver with
power at least one of the control connectors has to be
plugged in.
Crystals
Plug Ikarus crystals into the 35/40/41/72MHz
Piccoboards.
Transceiver
quartz
Servo and control connectors / crystal
Pay careful attention to the polarity of the connectors as
illustrated below.
.
Setup for JR/Fut mod
Chanel 1
Chanel 2
Chanel 3
Chanel 4
Receiver quartz
N.B. Carefully check that servo connectors and board
connectors correspond with the channel numbering system
used by your transmitter before switching on.
Set-up
The Piccoboard has two trimmer potentiometers on its upper
outer surface. They control gyro gain and tail rotor mixer
gain.
Using a small jewellers screwdriver, carefully rotate these
trimmers clockwise to between 75% and 90% of their full
travel. This is a standard setting giving stable flight using
most modern transmitters.
-
Gyro gain
+
Transmitter stick positions and
automatic neutral positioning
The Piccoboard has automatic neutral selection and
positioning. When you switch on, the in-built micro-
processors recognise the throttle stick position as the low
throttle or motor off setting. For technical people; the pulse
width between full speed and low speed is 0.8 millisecond. If
your transmitter generates a 1.0 millisecond pulse width in
the motor off position, then full power will generate a 1.8
millisecond pulse.
Check that your throttle stick is in the low throttle
position.
Check that your transmitter tail rotor control stick is in
4
Transmitter
quarz
Receiver crystal
Jumperposition Fut
Jumperposition JR
+ (Red)
- (Brown)
Receiver board
Controller board
Tail mixer gain
-
(Centre position
0
+
=no mixing)