In a system for function settings of operating components in a piece of
electronic equipment, a microcomputer circuit (4) of a radio receiver
outputs function control signals to a radio receiver circuit (2), based on
operating input signals. An input-output port correspondence setting
program is downloaded from an external personal computer (8) to the
microcomputer circuit (4), this program displaying a correspondence guide
screen on a display of the external personal computer (8) and generating
control function assignment data between groups of operating components
(31a, 31b), (32a to 32c), and (33a to 33c and 34a to 34c) having the same
type and characteristics. This data is transferred to the microcomputer
circuit (4), so that the microcomputer circuit (4) sets the relationships
of correspondence between the input and output ports (4d) and (4e), based
on the input-output port correspondence setting program.
