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Heathkit IB-5281 - Page 19

Heathkit IB-5281
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Ge
gHuearHxitT?
Detail
1-7A
Refer
to
Pictorial
1-7
for
the
following
steps.
(J
Position
the
circuit
board
as
shown.
As
you
wire
this
kit,
you
will
be
instructed
to
prepare
wires
ahead
of
time
as
in
the
following
step.
To
pre-
pare
a
wire,
cut
it
to
the
indicated
length
and
remove
1/4”
of
insulation
from
each
end.
The
wires
are
listed
in
the
order
in
which
they
will
be
used.
eo
869?
sg.
et
4
we
L
er
5,
o-
With
a
numb
er
the
connection.
The
=
armant
NoenProe
At
x
1OW
many
wires
agitat
not
to
solder
because
&
act
one
circuit
board
h
other
end
iatee:
(INCHES)
2
3
Page
i7
(%)
Refer
to
Detail
1-7A
Part
1
and
twist
a
red
and
black
wire
together
to
form
a
3”
twisted
pair.
(+
Refer
to
Detail
1-7A
Part
2
and
twist
a
red
and
black
wire
together
to
form
a
7”
twisted
pair.
(_)
Connect
the:
red
wire
from
the
3”
twisted
pair
to
circuit
board
hole
Jj
(5-1)
and
the
black
wire
to
hole
G
(S-1).
isted
pair
to
ack
wire
to
Connect
the
red
wire
from
the
7”
tw
circuit
board
hole
P
{S-1}
and
theb
CU
DOdItl
PUle
r
port
hole
R
(S-1).
feet
Cy
Connect
the
red
lead
of
one
battery
connector
to
circuit
board
hole
U
(S-1)
and
the
black
lead
to
hole
S
(S-1).
(
Ly”
Connect
the
red
lead
of
the
other
battery
con-
nector
to
circuit
board
hole
T
(S-1)
and
the
black
lead
to
hole
V
(S-1).
CIRCUIT
BOARD
CHECKOUT
Carefully
inspect
the
circuit
board
for
the
following
conditions.
(2.-}
Unsoldered
connections.
{t-7
Poor
solder
connections.
(
"Solder
bridges
between
foils.
(<2
}
Protruding
leads
which
could
touch
together.
{
)
Transistors
for
the
proper
type
and
installation.
(4+)
E
Ele
ctrolyue
Capacitors
for
the
correct
position
of
th
ié
positive
([
t
+}
end,
0
¥
Diodes
for
the
correct
nacition
of
the
handad
{L-¥
Diodes
for
the
correct
position
of
the
banded
end
This
completes
the
“Circuit
Board
Assembly”’;
set
it
aside
temporarily.
4
5 6
7

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