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Heathkit SB-1000 - Page 13

Heathkit SB-1000
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Heathkit
Page
13
STEP-BY-STEP
ASSEMBLY
Refer
to
Pictorial
1-1
while
you
read
the
following
notes
and
steps.
NOTES:
1.
Many
circuit
board
drawings,
such
as
the
one
shown
in
Pictorial
1-
1,
are
divided
into
two
or
more
sections.
You
will
work
in
each
of
these
sections
for
a
specific
series
of
steps.
2.
In
each
series
of
steps,
you
will
install
parts
in
a
top-to-bottom,
left-to-right
sequence.
Occa-
sionally,
you
may
be
directed
to
install
a
part
out
of
sequence.
3.
Check
off
each
step
as
you
perform
it.
You
may
also
wish
to
place
a
check
mark
near
each
component
on
the
Pictorial
as
you
install
it.
4,
In
general,
solder
instructions
are
given
only
at
the
end
of
a_
series
of
similar
steps.
You
may
solder
more
often
if
you
wish.
In
the
following
steps,
you
will
be
given
detailed
instructions
on
how
to
install
and
solder
the
first
part
on
the
circuit
board.
Read
and
perform
each
step
carefully.
Then
use
the
same
procedure
to
install
other
parts
on
the
circuit
board.
Note
that
the
circuit
board
has
foil
patterns
on
one
side
and
the
other
side
has
outlines
of
components
(parts)
shown
on
it.
The
"foil"
side
of
the
circuit
board
will
be
referred
to
as
such,
and
the
side
with
the
outlines
will
be
called
the
“component”
side
of
the
board.
Section
1
()
Position
the
circuit
board
as
shown
in
the
Pictorial
with
the
component
side
facing
up.
Always
install
components
on
the
component
side
of
the
circuit
board,
and
solder
the
leads
to
the
foil
on
the
other
side
unless
a
step
speci-
fically
directs
you
otherwise.
NOTE:
In
the
following
steps
you
will
install
diodes.
Whenever
you
install
a
diode,
always
match
the
banded
end
of
the
diode
with
the
band
mark
on
the
circuit
board.
The
circuit
will
not
work
properly
if
the
diode
is
installed
backwards.
IMPORTANT:
THE
BAND
END
OF
DIODES
CAN
BE
MARKED
IN
A
BANDED
END
BAND
SOLID
BODY
——
~
.
BANDED
END
M2
GLASS
COLORED
BODY
END
INSIDE
CAUTION:ALWAYS
POSITION
THE
BANDED
END
OF
A
DIODE
AS
SHOWN
ON
THE
CIRCUIT
BOARD.
BAND
()
Hold
a
1N5408
(#230-6776)
diode
as
shown
and
bend
the
leads
straight
down.
()
D310:
Start
the
leads
into
the
circuit
board
holes
at
location
D310
on
the
circuit
board.
Po-
sition
the
banded
end
of
the
diode
over
the
outline
of
the
banded
end
on
the
board.
Press
the
diode
against
the
circuit
board.
Then
bend
the
leads
out
slightly
to
hold
it
in
place.
<LE
)
Wit
|
LEE

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