Heathkit SW-717 - Page 30

Refer to
Pictorial 16
for
the
arrangement
of the
2-wafer
rotary
switch
wafers
and
the
numbering
of
the switch
lugs.
Observe
that
each
space
is
numbered,
even
though
a
lug
is
not installed.
Excepting
lug 11 and
lug21
,
all
odd
numbered
lugs are
on the
frontside
of the
wafer
(side
toward
the shaft
end). Lug
I 1
of wafer
#1
has solder
lugs
on
both
sides
of
the
wafer.
The
lug
on the
front
side
of
the
wafer
is
"11F"
and
the
lug on
the rear
side
is lug
"1
1
R."
(
)
Prepare a 2"
yellow
hookup wire.
(
)
Refer to
Pictorial
16 and
connect
one
end
of the
hookup
wire
to
lug 21
of wafer
#1
of the
2-wafer
rotary switch
(S-1).
The
other
end will
be
connected
later.
Refer to
Pictorial 17
for
the
following
steps.
(
)
Refer to
Detail 17A
and temporarily
install
the
2-wafer
rotary switch
at C on
the
front chassis
apron
in the
position
shown.
Use
a control
flat washer,
a
control
lockwasher,
and a
control
nut' Before
you
install
the switch,
position
the
hookup
wire
from
wafer #1 so
its
free end will be
over
the
circuit board.
Be sure
to
position
the spacers
between
lugs 1 1 and
12
at the one
o'clock
Position.
CAUTION:
When
you
solder wires
to
the switch
wafers
in
the
following
steps,
be sure
you
do
not use so
much
solder
that it
flows into the switch
contacts.
t )
Prepare the
following lengths of
yellow
hookup
wire:
1-314"
2-1/2"
3-112"
CONTROL
NUT
THIS SPACER
AT
ONE
O'CLOCK
POSITION
2''
YEL
Detail
17A
Wire the
lugs on
the
front
of
wafer
#1
of
switch
C
as
follows:
(
)
Connect
a
1-314"
yellow
hookup
wire
from lug 3
(S-1
)
to hole
DD on the
circuit board
(S-1).
(
)
Connect
a 2'1
12"
yellow
hookup
wire
from lug 5
(S-1
)
to
point
EE
on
the
circuit board
(S'1).
(
)
Connect
a
3-1
12"
yellow
hookup
wire
from lug 7
(S-1
)
to
point
FF on the
circuit
board
(S-1
).
..rl:rilr":'
CONTROL
LOCKWASHER
CON
FLAT !
RO
AS
4"
5"
6"