-8-
ASSEMBLY INSTRUCTIONS - AUDIO AMPLIFIER
We will begin by installing resistor R14. Identify the resistor by its color code and install as shown on page 3. 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.
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.
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
Polarity Mark
( )
(+)
EBC
E
B
C
EBC
E
B
C
Flat
Side
Flat
Side
Band
Cathode
Anode
R14 - 47k
W
Resistor
(yellow-violet-orange-gold)
Q4 - 2N3904 Transistor NPN
(see Figure C)
TP6 - Test Point Pin
(see Figure A)
C11 - 10
m
F Lytic
(see Figure B)
C14 - 470
m
F Lytic
(see Figure B)
R13 - 82k
W
Resistor
(gray-red-orange-gold)
Pot / SW1 with
Nut and Washer
Knob (pot)
Solder 5 lugs
to PC board
C12 - 47
m
F Lytic
(see Figure B)
Top Side
Q5 - 2N3906 Transistor PNP
(see Figure D)
TP7 - Test Point Pin
(see Figure A)
Q6 - MPS6560 (8050)
Transistor NPN
(see Figure C)
TP8 - Test Point Pin
(see Figure A)
C13 - 470
m
F Lytic
(see Figure B)
R17 - 100
W
Resistor
(brown-black-brown-gold)
R16 - 1k
W
Resistor
(brown-black-red-gold)
R19 - 1
W
Resistor
(brown-black-gold-gold)
D2 - 1N4148 Diode
(see Figure E)
Q7 - MPS6562 (8550)
Transistor PNP
(see Figure D)
R18 - 820
W
Resistor
(gray-red-brown-gold)
R15 - 100
W
Resistor
(brown-black-brown-gold)
Summary of Contents for SUPERHET AM-550TK
Page 31: ... 30 SCHEMATIC DIAGRAM ...