14. Exchanging the Crystal
In order to avoid a double channel assignment it may be necessary to change the crystals on your
remote control system. For this purpose, proceed as follows:
• For reasons of operational safety, you should only use crystals that are explicitly recommended for
your remote control system by the supplier.
• Ensure that the transmitter is switched off and pull the holder of the transmitter crystal from the
rear side of the transmitter casing (see figure 2, Pos. 8).
• Take the transmitter crystal out of its plastic holder. Insert the replacement crystal with a different
channel in the same frequency band. Please make sure that you place the correct crystal in the
holder. Transmitter crystals are normally marked with the letter T or TX (T = "transmitter"). Put the
crystal holder back into the transmitter.
• When the flight battery is disconnected, pull
the receiver crystal (1) from the receiver (2). To
achieve a better overview, the receiver is
illustrated when taken out.
• The suitable crystal for the receiver has to be
marked with the same channel number as the
transmitter crystal. In addition it has the letter
code R or RX (R = receiver) on it.
• Insert the replacement crystal with the suitable
frequency for the transmitter into the receiver.
• Switch on the transmitter and afterwards the
receiver and check the function of the system.
Figure 20
71