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Heathkit AR-14 - Page 39

Heathkit AR-14
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of
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Hf
Miff
HQ
Detail
22A
FLAT
CORNER
Refer to
Pictorial
22
(fold-out
from
Page
33)
for
the following
steps.
{/
)
Mount
the phone
jack
at
location
E with a
{ control
lockwasher
and
nut.
See
Detail
22A.
Be
sure
to
position
the
flat
corner
as
shown
in
Pictorial
2 2.
( )
Prepare
the following
lengths
of hookup
wire:
~"
blaclf
15"
green
14"
white
I
7"
ye)19W
3-1
/
2"
green
NOTE:
After connecting
the
wires
in
thefollow-
ing
five
steps,
position
them
against
the
center
panel
and
amplifier
circuit
board.
/i1
Connect a 9"
black
wire
from
hol~ A in
the
amplifier
circuit
board
(S-1)
to
lug 3 of
transistor
socket
X
(S-2).
(~onnect
a 15"
green
wire
in
hole
46 of
~
amplifier
circuit
board
(S-1).
Route
the
other end of
this
wire
through
hole
BB
to
be
connected
later.
(--+-c.£mnect
a 14" white
wire
in
hole
44 of
the
ampllfter
circuit
board
(S-1).
Route
the
other end
of
this
wire
through
hole
BB
to
be
connected
later.
4 Connect a 7" yellow
wire
from
hole
47 of
the
amplifier
circuit
board
(S-1)
to
lug
7 of
control
D (NS).
(
Q/
Connect a 3-1/
2"
green
wire
from
hole
48
of
the
amplifier
circuit
board
(S-1) to
lug
9
of
control D (NS).
)
Connect
a 100 n
(brown-black-brown)
1/ 2
watt
resistor
from
lug
2 of phone
jack
E
(S-1)
to
lug 7
of
control
D
(S-2).
Page
31
(
~
Install
a 3/
4"
length
of
sleeving
on one
lead
of a 100 n
(brown-black-brown)
1/ 2
watt
resistor.
Connect
this
lead
to
lug
g
of
control
D (S-2),
and
connect
the
remain-
ing
lead
to
lug
1 of
phone
jack
E
(S-1).
NOTE:
No
connections
will
be
made
to
the
remaining
lug
of the phone
jack.
( )
Prepare
a
20"
length
of
2-wire
shielded
cable
as
shown in
Detail
22
B.
CUT
THE
CABLE
ACCORDING
TO
THE
DIMENSIONS
BELOW
PREPARE
EACH
END
AS
SHOWN
.
REMOVE
THE
OUTER
INSULATION
AND
UNRAVEL
THE
OUTER
SHIELD
OF
THIN
WIRES.
REMOVE
THE
INSULATION
FROM
THE
END
OF
EACH
LEAD.
APPLY
A
SMALL
AMOUNT
OF
SOLDER
TO
THE
BARE
END
OF
EACH
LEAD
.
TWIST
THE
OUTER
SH
I
ELD
.
Detail
228------....1
(r) At
one
end
of
the
cable
connect
the
green
wire
to
lug
7 (S-1)
and
the
yellow
wire
to
lug
8 (S-1) of
control
C.
(/J
Install
a
2-1
/
2"
length
of
sleeving
over
the
shield
lead.
Connect
this
lead
to
the
con-
trol
solder
lug
at
C
(S-1).
Route
the
other
end
of
the
cable
through
hole
BB,
to
be
connected
later.
J
( ) Slip
cable
clamps
over
the
cable
at
loca-
tions
BC
and
BD.
Fasten
the
clamps
to
the
center
panel
with
#6 x 3/
8"
sheet
metal
screws
as
shown
in
the
inset
draw-
ing on
Pictorial
22.

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