Remove the back cover from the transmitter and the receivers for access to the code switches. Inside is a 10-bits dip switch exposed on the circuit board. Use a pencil or ball-point pen to set the 10-bit dip switch of your choice. But, note that bit numbered 8 and 10 are not operational on the transmitter.
Determine the bits numbers 1-7, 9 to ON/ OFF position. For example, set bits numbered 1, 4, 9 to ON, numbered 2, 3, 5, 6, 7 to OFF.
There are 2 coded receivers controllable by this 2-channel transmitter. Set the bits as below:
First receiver: Set the bit numbered 8 to ON and numbered 10 to OFF and other bits to the same ON/OFF position as the corresponding bits in the transmitter.
Second receiver: Set the bit numbered 8 & 10 to ON, and others bits to the same ON/ OFF position as the corresponding bits in the transmitter.
Be sure all are set to the definite code, since a different setting of just one dip switch will prevent operation.