Elenco Electronics AM/FM-108CK, Сборка и инструкция по эксплуатации

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ASSEMBLY INSTRUCTIONS
We will begin by installing resistor R43. Identify the resistor by its color and install. Be careful to properly mount and
solder all components. Diodes, transistors and electrolytic capacitors are polarized, be sure to follow the instructions
carefully so that they are not mounted backwards. Check the box when you have completed each installation.
Wear safety goggles during all assembly stages in this manual.
Test Point Pin
Foil Side
of PC Board
Figure A
Lytic Capacitor
Figure B
Be sure that the
negative lead is
in the correct
hole on the PC
board.
Warning:
If the capacitor is connected with
incorrect polarity, it may heat up
and either leak, or cause the
capacitor to explode.
NPN Transistor
Figure C
Mount so E lead is
in the arrow hole
and flat side is in
the same direction
as shown on the
top legend. Leave
1/4” between the
part and PC board.
PNP Transistor
Figure D
Mount so E lead is
in the arrow hole
and flat side is in
the same direction
as shown on the
top legend. Leave
1/4” between the
part and PC board.
Diode
Be sure that the band is
in the correct direction.
Figure E
-7-
EBC
E
B
C
EBC
E
B
C
Flat
Side
Flat
Side
Band
Cathode Anode
R43 - 100
Ω
Resistor
(brown-black-brown-gold)
TP2 - Test Point Pin
(see Figure A)
R44 - 3.3k
Ω
Resistor
(orange-orange-red-gold)
D5 - 1N4148 Diode
(see Figure E)
R45 - 470k
Ω
Resistor
(yellow-violet-yellow-gold)
R47 - 330
Ω
Resistor
(orange-orange-brown-gold)
Q10 - 2N3904 Transistor
(see Figure C)
R46 - 47
Ω
Resistor
(yellow-violet-black-gold)
C42 - 47
μ
F Lytic
(see Figure B)
R48 - 100
Ω
Resistor
(brown-black-brown-gold)
R49 - 100
Ω
Resistor
(brown-black-brown-gold)
C39 - 470
μ
F Lytic
(see Figure Ba)
For safety, solder capacitor C39
on the copper side as shown.
Bend the leads 90
O and insert into
holes. Check that the polarity is
correct, then solder in place. Trim
the excess leads on legend side.
C40 - 10
μ
F Lytic
(see Figure B)
C41 - 10
μ
F Lytic
(see Figure B)
C44 - .001
μ
F Discap (102)
Q11 - 2N3904 Transistor
(see Figure C)
C43 - 470
μ
F Lytic
(see Figure B)
Q13 - MPS8550 or 6562
Transistor (see Figure D)
TP1 - Test Point Pin
(see Figure A)
Q14 - MPS8050 or 6560
Transistor (see Figure C)
Q12 - 2N3906 Transistor
(see Figure D)
TP15 - Test Point Pin
(see Figure A)
Polarity
Mark
( )
(+)
Figure Ba
Polarity
Mark
+
–
'