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Heathkit SB-220 - Circuit Board Prewiring

Heathkit SB-220
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Page 11
~~=*~--*=*=~J
CIRCUIT BOARD PREWlRlNG
Refer to Pictorial 1-2 for the following steps.
From the component side of the circuit board, insert one
NOTE:
To prepare lengths of hookup wire, as in the
end of each of the following wires into the designated hole.
following step, cut the wire to the indicated length and
Solder each wire on the foil side.
remove 114" of insulation from each end. If the wire is
solder to hold the strands together. Unless otherwise stated,
V/
sranded, twist the ends tightly and apply amamount of
(
Connect a 5-114" length of red hookup wire to hole
A
in the circuit board (S-1
).
"hookup wire" will mean the small solid-conductor wire
supplied in various colors.
(
d"
Connect a 3-314" length of black hookup wire to hole
B
on the circuit board 6-1).
(
/
)
Prepare the following lengths of hookup wire:
L.--
-
5-1
14"
red
3-314" black
6-1 12" black
17-112" small black stranded wire
7-112" orange
6-112" yellow
9-112" heavy blue (thick insulation)
I
2-314"'heavy blue (thick insulation)
(,/Connect a 6-112" length of black hookup wire to hole
C on the circuit board (S-1
1.
(
f
1
Connect a 17-112" length of black stranded wire to
hole
E
on the circuit board 6-1).
Connect a 7-112" length of orange hookup wire to
hole
G
on the circuit board 6-1).
(d
Connect
a
6-112'' length of yellow hookup wire to
hole
F
on the circuit board (S-1).
(
J)
Connect a 9-112" length of heavy blue hookup wire to
hole
H
on the circuit board 6-1).
(/Connect a 2-314" length of heavy blue hookup wire to
hole
J
on the circuit board 6-1).
(./fTrim all excess lead lengths from the foil side of the
circuit board.
-2-314"
HEAVY
BLU
BLU
17-112" BLK--
STRANDED
PICTORIAL
1-2
RED-
B LK-
BLK-

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