EasyManua.ls Logo

Heathkit HP-23A - Page 8

Heathkit HP-23A
21 pages
To Next Page IconTo Next Page
To Next Page IconTo Next Page
To Previous Page IconTo Previous Page
To Previous Page IconTo Previous Page
Loading...
az
Page
7
This
completes
the
Chassis
Parts
Mounting,
CAUTION:
When
the
chassis
is
bottom
side
up,
its
weight
will
rest
on
the
transformer
and
the
mounted
capacitors,
Take
care
that
you
do
not
damage
the
capacitors
during
the
remainder
of
the
assembly,
TRANSFORMER
WIRING
Refer
to
Pictorial
2
(fold-out
from
Page
9)
for
the
following
steps,
Position
all
wires
andleads
as
shown,
Connect
the
power
transformer
leads
as
follows:
LEAD
COLOR
=
CONNECT
TO
()
Red
lug
2
of
terminal
strip
J
(NS),
()
Blue
lug
4
of
terminal
strip
J
(NS),
(.)
Red-yellow
lug
1
of
capacitor
H
(NS).
()
Green-yellow
lug
6
of
socket
B
(S-1),
()
Green
lug
8
of
socket
B
(S-1),
()
Yellow
lug
2
of
socket
B
(8-1).
(_)
Route
the
brown
and
yellow-brown
leads
as
shown
in
the
Pictorial,
These
leads
will
be
connected
later,
Alternate
Line
Voltage
Wiring
The
power
transformer
in
this
Power
Supply
is
equipped
with
a
dual
primary
winding,
It
maybe
operated
from
either
105-125
VAC
or
210-250
VAC,
depending
on
the
way
in
which
the
primary
leads
are
connected,
Two
sets
of
wiring
instruc-
tions
are
given,
Use
only
the
instructions
which
apply
to
the
line
voltage
that
you
intend
to
use.
120
VAC
Wiring
Refer
to
Pictorial
2,
()
Connect
the
black-yellow
and
black-red
transformer
leads
to
lug
9
of
socket
B
(S-2),
(_)
Connect
the
black
and
black-green
trans-
former
leads
to
lug
6
of
terminal
strip
J
(NS).
240
VAC
Wiring
Refer
to
Detail
2A,
()
Connect
the
black-red
transformer
lead
to
lug
9
of
socket
B
(S-1),
()
Connect
the
black
transformer
lead
to
lug
6
of
terminal
strip
J
(NS),
()
Connect
the
black-green
and
black-yellow
transformer
leads
to
lug
5
of
terminal
strip
J
(8-2),
CHASSIS
WIRING
()
Connect
the
red
filter
choke
lead
extending
through
grommet
D
to
lug
1
of
capacitor
K
(NS).
( )
Connect
the
black
filter
choke
lead
extending
through
grommet
D
to
lug
1
of
terminal
strip
L
(NS),
()
Cut
a
9"
length
of
the
8-wire
cable,
Refer
to
Detail
2B
and
remove
the
individual
wires
from
the
9"
cable,
These
wires
will
be
used
in
the
following
steps.
S-WIRE
CABLE
Detail
2B

Related product manuals