Heathkit SW-717 Assembly page 41

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Patc'41
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PROTECTIVI
COVTR
PROTTCTIVE
COVER
Detail2SD
{ )
Remove
control
nuts and
washers
from the
subpanel.
Then
mount the
front
panel
on
the
subpanel. Be sure
the
back
of
the
meter
is
properly
aligned
with
the
cutout in the
subpanel, Use a 4-4O
x
3/4" black nylon
screw, a
3/16"
aluminum spacer,
and a
4-40 nut at L'
From the back
of
the panel, use
a
4'40
x
112"
self-tapping screw and
a 3116" aluminum
spacer
at
R.
Use
a 4-40
x
318" screw
at
T.
CAUTION:
Be sure
the
screw
at T
is
not
longer
than 318",
or the panel may
be damaged
when
the
screw is
tightened'
{ )
Place
control
washers
and
control
nuts on
the
bushings
at
A,
B,
C,
D,
and
E.
( )
Check
the
front
panel control nuts
to
make sure
they
are
tight.
( )
Keep
the tuning capacitor plates closed and adjust
the
main tuning pointer so
it
coincides
with
the
left
end
markings
of the frequency
scale.
( )
Refer
to
the inset drawing
on Pictorial
25
and start
an
8-32
x
7116"
setscrew
into
each
of
the
large
knobs as shown.
( )
In the
same
manner,
start an 8-32
x
3/16"
setscrew
into
each
of the
four
small knobs.
( )
Refer
to
Detail 25E and mount
four small knobs
with
the index
marks positioned as shown. Tighten the
setscrews.
Refer
to
Detail 25F
for
the next
two
steps.
( )
C
ut the leads
of a 1N191
l#56'26,
brown-white-brown)
diode
to 3/8"'
Connect
the
lead
at the
banded
end
of
the diode
to
lug
2 (NS) and
the
other
lead
to lug 1
(NS)
of the meter.
( )
At
the
end
of the blue and
white twisted
pair, connect
the blue wire
to
lug
2 (S-2)
and
the white wire
to lug
1
(S-2) of
the
meter. Carefully wrap
each
wire around
a
meter
lug
(before soldering)
to
make
the connection.
( )
Remove
the meter shorting
wire
from
the
meter. This
is a very fine wire which may be
hard
to
see.
lt
connects
the two
meter terminals
to
prevent
damage
from
handling.
VINYL
GASKET
o
c\
\v
( )
Mount large knobs
on
the
main
tuning and
bandsPread
knobs
and
tighten
the
setscrews.
( )
Turn the shafts
at
A,
B,
and
C
fully
counterclockwise. Turn
the
shaft
at
D
to
its
center
Position.
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Detail2SE