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Heathkit IO-4205 - Page 76

Heathkit IO-4205
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r -'
Page
74
Refer to
Pictorial4-13
(Illustration Booklet, Page 18)
for
the
following steps.
( )
Position
the
chassis
top
side
up
as
shown.
Connect
the
wires
from
B0#1
of
the
harness
as fol-
lows:
'
~
arge
Yel
wire
to
control R6
lug
3 (NS) .
'i---f-
Large
Brn
wire
to
control
R6
lug 2 (S-1).
~
Large
Blk
wire
to control
R6
lug
1 (NS).
(
vf
Yel
wire
to
control
R5
lug
3 (S-1).
( r Y/
Grn
wire
to
control
R5
lug
2 (S-1).
(
~
lk
wire
to
control
R5
lug
1 (S-1).
~
Wht-Yel
wire
to
switch
SW4 lug 5 (S-1).
...
/_
( ) R17:
Connect
a 330k!l, 1-watt (Org-Org-Yel) re-
sistor
to
control
R6
between
lugs
1 (S-2)
and
3
(S-2).
Place a 1/2"
length
of
sleeving
on
a
1"
bare
wire
.
Connect
this
wire to
switch
SW4
between
lugs
4
(NS)
and
7 (S-1).
Connect
the
free
end
of
the
Wht-Blu
wire
com-
ing
from
grommetBA
to
switchSW4lug
3 (S-1).
( / Locate
the
shielded
cable
coming
from grom-
met
BF
with
the
insulation
removed
from its
inner
lead.
Connect
the
inner
lead
to
switch
SW4lug
8 (S-1).
There
is
no
shield
lead
connec-
ti
, n
at
this
end
of
the
cable.
Remove 1/4" of
insulation
from
the
inner
lead
of
the
other
shielded
cable
coming
from
grommet
BF.
(
~
nnect
the
inner
lead
of
this
cable
to
switch
SW4lug
6 (S-1).
There
is
no
shield
lead
connec-
tion
at
this
end
of
the
cable.
Connect
the
free
end
of
the
Blk
wire
coming
from
grommet
BB
to
solder
lug
K (NS).
(
INCHE.S
)
3
Connect
the
free
end
of
the
Wht-Red
wire
corn-
ing
from
grommet
BB
to
pilot
lamp
PL 1 lug 3
(NS).
Prepare
a 2-1/2"
black
wire
and
a 6-1/2" black
wire.
(\
J
Connect
a 2-1/2" Blk
wire
from
switch
SW8lug
3 (S-1) to
solder
lug
K (NS) .
Connect
a 6-1/2" Blk
wire
from
pilot
lamp
PL1
lug
1 (NS)
to
solder
lug
K (NS).
Connect
one
lead
of
the
pilot
lamp
to
PL1lug
1
(S-2).
( )
Connect
the
other
lead
of
the
pilot
lamp
to
PL1
lug
2 (NS).
Be
sure
the
pilot
lamp
leads
do
not
touch
each
other.
R13:
Connect
a 47 k!l(Yel-Viol-Org) resistor
to
PL1
between
lugs
2 (S-2)
and
3 (S-2).
Refer
to
Pictorial4-14
(Illustration Booklet, Page
19)
for
the
following steps.
CAUTION:
When
you
connect
the
wires
in
the
follow-
ing steps,
do
not
burn
the
insulation
on
the
wires that
were
connected
earlier.
Connect
the
free
ends
of
the
wires
coming
from the
horizontal
circuit
board
to
the
chassis as follows. Po-
sition
the
following six wires
under
the
shielded
ca-
bles
connected
to
switch
SW4.
(
Wht-Org
wire
to control
R8
lug 3 (S-1).
Grn
wire
to
control
R8
lug
2 (S-1).
Wht-Red to control
R8
lug
1 (S-1).
Wht-Gry to control
R7
lug
3 (S-1).
Red
wire
to control
R7
lug
2 (S-1).
Wht-Yel to control
R7
lug
1 (S-1).
Remove
an
additional
3/4" of
insulation
(total
1")
from
the
free
end
of
the
Org wire. Pass
the
end
of
this
wire
through
switch
SW4lug
4 (S-3)
to
switch
SW6
lug
6 (S-1).
"'''"")
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