Elenco AutoScan Fm Radio Kit - Manual (Page 3)

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1. One of the most frequently occurring problems is
poor solder connections.
r a) Tug slightly on all parts to make sure that
they are indeed soldered.
r b) All solder connections should be shiny.
Resolder any that are not.
r c) Solder should flow into a smooth puddle
rather than a round ball. Resolder any
connection that has formed into a ball.
r d) Have any solder bridges formed? A solder
bridge may occur if you accidentally touch an
adjacent foil by using too much solder or by
dragging the soldering iron across adjacent
foils. Break the bridge with your soldering
iron.
2. Use a fresh 9V battery.
3. Make sure that all of the parts are placed in their
correct positions. Check if the IC, diode and lytic
orientations are correct.
AGC Automatic Gain Control.
AF Audio Frequency
AM Amplitude Modulation
Amplifier Converts input signal to output.
Anode The positive terminal of a diode.
Antenna Any device that either radiates
a signal or pulls in a signal.
Baffle Used to ensure positive airflow.
Bandwidth The amount of frequency
spectrum, in hertz, utilized by a
filter or channel.
Bypass Capacitor A capacitor used to shunt AC
around a component.
Capacitor An electronic component that
has ability to store a charge and
block DC current.
Cathode The negative terminal of a
diode.
Coil A component with inductive
reactance.
Current Transport of electrons
throughout a conductor and
measured in amps.
Detector Circuit Receiver circuit that recovers
the modulated portion of the
signal impressed on the RF
carrier wave.
Diode An electronic component that
changes alternating current to
direct current.
FM Frequency Modulation.
Frequency Wave or pulse repetition rate.
Gain Signal multiplication.
IC Integrated Circuit.
LED Light Emitting Diode. A
semiconductor device that
emits light when voltage and
current are passed through it.
PC Board Printed Circuit Board.
Potentiometer Three-terminal variable resistor,
volume control.
Power Supply An electronic circuit that
produces the necessary power
for another circuit.
Resistor An electronic component that
obstructs (resists) the flow of
electricity.
GLOSSARY
TROUBLESHOOTING
Contact ELENCO ® if you have any problems. DO NOT contact your place of purchase as they will not be able
to help you.
PARTS IDENTIFICATION
SEMICONDUCTORS
FM antenna
50k
Ω
Potentiometer
and switch
Discap
Electrolytic
radial
Battery holder
Screw
M1.8 x 7.5mm
Speaker pad
CAPACITORS
LED
RESISTORS
LM-386
IC Socket
Diode
MISCELLANEOUS
Resistor
COILS
Speaker
PC board
Knob (pot / switch)
Cap push button
switch
Push button switch
Screw
M2 x 5mm
Nut M1.8
6-turn
4-turn Varactor
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