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Heathkit SB-10 - Page 21

Heathkit SB-10
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J
('"j)
('-)
(\$
(
irl
($
j
(
',9
GJJ
(Y)
Number
10
breakout
(3
wires): bend them
out
of
the
way,
to
be connected
later.
Number
ll
breakout
(red):
connect to FF1
(NS).
Number ll
breakout
(violet):
connect
to F?
(53).
Install
a 2
L/2"
length
of clear
plastic
sleeving
on the
red
marked
shielded
wire at the
end
of the harness
and
push
it back to the
last
(11th)
breakout
point.
Connect
the
shield
of this wire to
ground
lug
#1 on
socket
"F"
(S1).
Use a short
length
of
bare
wire
to
make
the connection,
if necessary.
Connect the
center
conductor to F2
(S1).
Pull
the
clear
plastic
sleeving
back down and elose
to
the
end
of
the
shield.
Instatl the
second wiring
harness,
shown
in
Figure
7,
in
place
on the deck.
Locate break-
outs
as shown
on
Pictorial 3 and connect wires
as
follows:
Number 1
breakout
(yellow):
connect the
yellow
wire
to
D9
(SZ).
Number
2 breakout
(2
yellow):
both connect
to
Fg
(S2).
(dr
("$
t1d
)t
tne harness
end nearest
breakout #2,
connect
the rvhite
lead to FF3
(S2).
(
ly'
Connect the
blue lead
to FFl
(S6).
The red and
yellow
leads
are connected
later.
(
rl
C"t the leads
of a 20 mfd 350 volt electrolytic capacitor
to 1 l/21'.
place
a 1
1/4"length
of
-,sleeving
on each lead, connect
the
positive
(+)
Iead
to AAI
(S4).
1
rJ
O"""" the capacitor
across socket
,,B,',
connect the
negative
(-)
Iead.to
BB2
(S4).
(v")
fnstatt
the anti-trip
input transformer, 51-3.
Dress the leads
as shown,
through their re-
spective
openings
at T2. Install a 3-lug, center
ground,
terminal
strip :it
"CC"
as shown.
Secure
the transformef
witlr,
I/4"
6-32'RHMS,
#6 lockwashers
and 6-32
nuts.r The 3-lug
terminal
strip should
be
installed with the mounting
foot
between
the Iockwasher
and n\t.
(\7J
Connect the red
lead from T2
to CCl
(NS).
(
VI
Connect the blue lead from
T2 to
CC2
(NS).
(
v')
place
sleeving on
one of the enameled Ieads from
T2 and connect
it to
CC3
(NS).
(
4rconnect
the other
enameled
Iead
to CC2
(NS).
Sleeving is not
required.
(f)
D"ess a 3
3/8" Iength
of #20 bare wire,
from
DDz
(NS)
to
CC2
(S3),
under
existing
wires
ald close
to chassis.
(
v)
S14ip
the
ends of
a
5
3/4"lengthof hookup
wire and
connect
fromCCB(NS)
through
grommet
.
G$ to
RY8
(S1).
(J)
Strip
the ends ot
a 3 3/4" Iength
of
hookup
wire.
Connect it
through
GJ
from
DD2
(Sg)
to
RYll
(NS).
This
completes
preliminary
wiring of the audio deck.
Recheck
your
work and then
set the deck
aside
temporarily.
J
Page
21

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