Elenco FM Module User Manual
FM Module
The FM Module (not in SC-100 or SC-300) contains an integrated FM radio circuit. The inside
looks like this:
or
Antenna Symbol
Antenna (A1)
Its actual schematic looks like this:
This circuit is actually much more complex than it
appears here, since it is built around an integrated
radio circuit. Aschematic of the circuitry within this
part would be too large to show here, but this block
diagram gives a summary of it:
Its Snap Circuit’s connections are like this:
FM Module:
(+) - power from batteries
(–) - power return to batteries
T - tune up
(–)
OUT
(+)
The antenna ( ) is a loose wire that should always
be left unconnected and spread out for best radio
reception.
R - reset
OUT - output connection
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