Figure B
Mount the IC socket onto the PC board
with the notch in the same direction as
marked on the PC board. Then, mount
the IC onto the socket with the notches
in the same direction.
Figure A
Mount the LED onto the PC board
with the flat side of the LED in the
same direction as marked on the
PC board. Space the LED’s with a
paper clip. Make sure that it is 1/4”.
-7-
ASSEMBLE COMPONENTS TO THE PC BOARD
Identify and install the following parts as shown. After soldering each part, place a check in the box provided.
Space the LED’s with a paper clip (use size shown below) so that they are 1/4” off of the PC board.
U1 - 16-pin Socket
U1 - 4017 Integrated Circuit
(see Figure B)
R1 - 1.2k
Ω
5% 1/4W Resistor
R2 - 1.2k
Ω
5% 1/4W Resistor
R3 - 1.2k
Ω
5% 1/4W Resistor
R4 - 1.2k
Ω
5% 1/4W Resistor
(brown-red-red-gold)
Q1 - 2N3904 Transistor
Q2 - 2N3904 Transistor
Q3 - 2N3904 Transistor
Q4 - 2N3904 Transistor
(see Figure C)
R5 - 10k
Ω
5% 1/4W Resistor
R6 - 10k
Ω
5% 1/4W Resistor
R7 - 10k
Ω
5% 1/4W Resistor
R8 - 10k
Ω
5% 1/4W Resistor
(brown-black-orange-gold)
Q5 - 2N3906 Transistor
(see Figure C)
U3 - 16-pin Socket
U3 - 4017 Integrated Circuit
(see Figure B)
C4 - .001
µ
F (102) Capacitor
C5 - .47
µ
F Electrolytic
(see Figure D)
R10 - 820k
Ω
5% 1/4W Resistor
(gray-red-yellow-gold)
R11 - 100k
Ω
5% 1/4W Resistor
(brown-black-yellow-gold)
D38 - LED Green
(see Figure A)
Q7 - 2N3904 Transistor
(see Figure C)
R16 - 20k
Ω
5% 1/4W Resistor
(red-black-orange-gold)
C6 - 1
µ
F Electrolytic
(see Figure D)
C7 - 100
µ
F Electrolytic
C8 - 100
µ
F Electrolytic
(see Figure D)
Flat
1/4”
Figure C
Mount the transistor with the
flat side in the same direction
as marked on the PC board.
Flat
.35”
max.
Notch
IC
Socket
PC Board
Install jumper wires J1 – J40
using bare wire.
J1 – J40 - Jumper Wires
(see Figure G)
Note: Install the
jumper wires first.
LED Spacer
(Actual Size)
1/4”
