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Heathkit SB-1000 - Page 35

Heathkit SB-1000
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Heathkit
()
Refer
to
Detail
6-1G
and
use
the
following
procedure
to
mount
the
barrier
strip
onto
the
inside
of
the
rear
panel:
VA.
Refer
to
Part
A
of
the
Detail
and
prepare
a
1-1/8"
x
2-1/4"
insulator
as
shown.
Dis-
card
the
leftover
insulator
paper.
7,
Carefully
peel
away
the
backing
paper
from
the
insulator.
Then
press
the
insul-
ator
onto
the
back
of
the
barrier
strip
in
SY
the
area
shown.
3,
Refer
to
Part
B
of
the
Detail
and
use
6-32
x
1/2"
hardware
to
mount
the
barrier
strip
onto
the
chassis
at
RD.
Do
not
overtighten
this
hardware
or
you
could
break
the
barrier
strip.
Ti
Refer
again
to
Part
B
of
the
Detail
and
temporarily
remove
the
five
screws
from
the
right
side
of
the
barrier
strip.
Then
use
the
screws
to
mount
a
#6
solder
lug
at
each
of
the
five
locations.
Be
sure
to
position
cach
solder
lug
as
shown
in
the
Pictorial
before
you
tighten
its
screw.
ri
F1:
Refer
to
Detail
6-1H
and
mount
a
fuschold-
er
to
the
rear
panel
at
Fl.
Use
a
fuseholder
washer
and
fuseholder
nut.
Be
sure
to
mount
the
fuscholder
so
lug
2
is
toward
the
top
of
the
panel.
4
F2:
Similarly
mount
a
fuseholder
to
the
rear
panel
at
F2.
A
Carefully
bend
lug
2
of
each
fuseholder
out
a-
way
from
the
fuseholder
body
so
you
can
con-
nect
wires
to
them
later.
ah
K2:
Refer
to
Detail
6-1]
and
use
6-32
x
3/8"
hardware
to
mount
the
power
relay
and
a
2
lug
terminal
strip
to
the
rear
panel
at
K2.
Be
sure
to
position
the
relay
and
the
terminal
strip
as
shown
in
the
Pictorial
before
you
tighten
the
hardware.
Also
be
sure
the
tab
on
the
relay
seats
in
the
corresponding
rear
panel
hole.
Uf
.
SW4:
Refer
to
Detail
6-1K
and
use
6-32
x
1-1/4”
hardware
and_
two
5/16"
spacers
to
mount
the
interlock
switch
to
the
rear
panel
at
SW4.
Be
sure
the
side
of
the
switch
that
has
two
lugs
is
toward
the
left
as
shown.
Page
37
Refer
to
Pictorial
62
while
you
perform
the
following
steps.
NOTE:
When
you
install
the
capacitors
in
the
next
two
steps,
push
the
leads
through
the
holes
in
the
eyelets
of
the
indicated
terminal
strip
lugs.
Then
refer
to
inset
drawing
#1
and
bend
the
lugs
over
sharply
against
the
terminal
strip
to
make
a
good
mechanical
connection.
’
C33:
Cut
the
leads
of
a
4700
pF
(472)
ceramic
capacitor
to
3/8".
Then
connect
the
capacitor
from
the
eyelet
of
terminal
strip
RC
lug
1
(S-1)
to
the
center
eyelet
(NS).
of
C32:
Cut
the
leads
of
a
4700
pF
(472)
ceramic
capacitor
to
3/8".
Then
connect
the
capacitor
from
the
eyelet
of
terminal
strip
RC
lug
2
(S-1)
to
the
center
cyclet
(S-2).
(Y
Refer
to
Detail
6-2A
and
wrap
the
leads
of
one
4700
Q
(4.7
kQ),
7-watt
resistor
around
the
leads
of
another
4700
(4.7
kQ),
7-watt
resist-
or.
Then
solder
the
connection
and
cut
off
the
indicated
leads.
NOTE:
Refer
to
inset
drawing
#2
when
a
step
directs
you
to
"make
a
mechanically
secure
connection.”
(4
R4A/R4B:
Connect
the
prepared
resistor
combin-
ation
between
terminal
strip
RE
lugs
1
(NS)
and
2(NS).
Make
mechanically
secure
connections.
C1:
Cut
the
leads
of
a
.01
UF,
100V
ceramic
cap-
acitor
to
3/8”.
Then
connect
the
capacitor
from
phono
socket
J3
lug
1
(NS)
to
the
nearby
solder
lug
(GS-1).
@
=
C2:
Cut
the
leads
of
a
01
pF,
100V
ceramic
cap-
acitor
to
3/4".
Then
pass
one
lead
through
phono
socket
J4
lug
1
(S-2)
to
control
R2
lug
2
(S-
1).
Connect
the
other
capacitor
lead
through
the
nearby
solder
lug
(S-2)
to
control
R2
lug
1
(S-
1.
&
C3:
Cut
the
leads
of
a
.01
pF,
100V
ceramic
cap-
acitor
to
3/8".
Then
connect
the
capacitor
from
Phono
socket
J5
lug
1
(NS)
to
the
nearby
solder
lug
G-1).

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