Icom IC-551D Instruction Manual page 47

R5 > КА (RT)
R5 > K8 (DBC)
These аге used when ап external controller is connected to the unit.
ее
0) R5- K1, К2(5ТОР 2 Mode) |
This flow occurs when the scan is stopped automatically.
In this condition, the scan starts
automatically from the frequency the scan has stopped at with the signal from the scan stop
control circuit.
0) R6-> K1 (TS)
This flow occurs when the TS button is pushed.
0) R6-> КА (ВВ-ТА)
This flow occurs when the VFO select switch is set at "RB-TA".
The "B" VFO operates in
the receive mode and the "А" VFO operates in the transmit mode.