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5. Switching on for the first time
5.1. Charging the transmitter battery (maximum charge current 1 A)
First connect the charge lead (Order No. 12 5023) to the charger, then connect the
charge lead to the transmitter.
Charging - important:
•• Automatic battery fuse
The battery in your PROFI CAR features an integral thermal fuse which protects the
pack if it is shorted, or if the charge current is excessive.
Use only genuine fuse-protected MULTIPLEX batteries!
!!
If a short-circuit occurs and you eliminate it (or cut off the charge current), the
fuse cools down again in about one minute, and the battery is then ready for use
again.
•• Notes on charging techniques:
Standard (slow) charging
is possible, and no special techniques are required.
If you wish to rapid-charge the battery using automatic termination, the charge
current must not exceed 600 mA, otherwise the fuse element may be triggered and
the charge process will be interrupted prematurely.
5.2. Charging the receiver battery
Read the charging notes printed on the battery. Do not exceed the charge currents
stated by the battery manufacturer!
5.3. Fitting the transmitter crystal
Transmitter crystals feature a blue sleeve, and the printed channel number is
preceded by “Tx” or “S”. The transmitter and receiver crystals must bear the same
channel number. The transmitter crystal is plugged into the RF module (-> illustration
on page i).
Please be very careful when handling crystals:
v Don’t drop them
v Don’t force them into the crystal socket
v Protect them from vibration in storage and in use
5.4. Adjusting the trigger
If you loosen the screw in the trigger, the bar can be adjusted to suit your “finger
diameter”.
CAUTION when tightening the screw: if you over-tighten it, the pressed-fit nut on
the other side may come loose!
5.5. Testing the transmitter
Now you can switch on the transmitter, connect the components of a receiving
system, and find out “what happens” when you operate the transmitter. All you need
are a receiver with servos connected to channels 1 and 2 and a receiver battery. If you
prefer to use a complete car for this, connect the steering servo to channel 1 and the
throttle/brake servo to channel 2.