Specifications
-
MAIN
CHASSIS
MECHANICAL
ASSEMBLY
1
(~ss
the
leads of one of
the
output
transformers
Z-565 through
the
two holes provided
nearest
the
front of
the
chassis (see
the
pictorial
diagram
for
the
correct
location).
The
leads of
the
transformer
are
in
two groups:
the
orange, black,
and
yellow
leads which pass
through
the
rear
chassis hole;
and
five
other
leads which
pass
through
the
front hole.
Before
attaching
the
transformer
to
the
chassis with
four
sets
of
#8
hardware
(the
largest
size
supplied
with
the
kit),
mount
a 5-lug terminal
strip
and
the
cable clamp
under
two of
the
transformer
mounting
screws
as
indicated
on
the
pictorial diagram.
Insert
the
lockwasher between
the
nut
and
cable clamp,
and
between
the
nut
and
terminal
strip
mounting
lug,
and
under
all
the
other
nuts.
Do
not
tighten
the
nut
under
the
cable clamp.
2(V)
Pass
the
leads of
the
power transformer PA-774
through
the
two holes provided
at
the
rear
corner
of
the
chassis, observing
the
lead
orientation
shown
in
the
pictorial diagram.
Mount
the
transformer
with
#8
hardware,
and
install
a 5-lug terminal
strip
on
one
of
the
mounting
screws
as
shown
in
the
diagram.
NOTE:
Instructions
for
PB-028. a 120/240
volt
transformer
for
use
outside
the
United
States.
will
be
found
at
the
end
of
the
regular
assembly
instructions.
3(....-) Use
#8
hardware
to
mount
the
other
Z-565
output
transformer
at
the
rear
of the chassis,
in
the
posi-
tion
indicated
on
the
pictorial diagram.
The
orange,
black
and
yellow leads should pass through
the
holE!
closest to
the
rear
of
the
chassis,
and
the
remaining
.
~ds
through
the
other
hole. .
4(V)
Before
mounting
the
two
PC-lO
circuit
boards in-
stall
the
four
sockets
supplied
for V-5, V-6, V
-7
~d
V-8
on
the
top
of
the
boards
(the
side on which
the
components
are
mounted).
Note
that
the
pairs
of
sockets
on
each
board
do
not
face
in
the
same
direc-
tion. Refer to
the
pictorial for
the
correct orienta-
tion.
Use
#4
hardware;
insert
the
screws from
the
bottom
of
the
circuit
board
and
install
the
lock-
washer
and
nut
from
the
top.
5
(~Mount
the
two
PC-lO
circuit
boards from
the
bottom
of
the
chassis,
as
shown
on
the
pictorial dia-
gram,
using
four
sets
of
#4
hardware
to
mount
each
board.
Note
their
orientation,
and
leave
air
space
~ween
the
boards.
6tv"'5
Mount
the
PC-11 preamplifier
circuit
board
in
the
position shown
on
the
pictorial diagram, using
#4
hardware, from
the
bottom
of
the
chassis.
7 (
v5"
Install
the
two filter
capacitor
mounting wafers from
the
bottom of
the
chassis
in
the
cutouts
provided
at
the
rear
corner, using two sets of # 4
hardware
to
secure
each
wafer.
8
(1,1'
The
four-section filter
capacitor
(marked
60/40/20/
1(0)
mounts
in
the wafer
nearest
to
the
center
of
the
chassis; note
the
position of the symbols
stamped
on
the
underside
.of
the
capacitor,
as
shown
on
the
pictorial diagram.
The
capacitor
must
be
mounted
in
this
position.
Insert
the
mounting
lugs
in
the slots
provided, from
the
top of
the
chassis; check
the
diagram
to
'see
that
the
markings
are
correctly
located.
Then,
twist
each
of
the
mounting
lugs
%-turn
with
pliers, while holding
the
capacitor
firmly
against
the
wafer from above.
12
9 (
~The
same procedure
as
in
the
preceding
step
is
used
to install
the
two-section filter
capacitor
(marked
50/50)
in
the
remaining wafer.
Note
that·
the
symbols
stamped
in
the
underside
of
the
capacitor
are
differently positioned
than
for
the
other
filte
capacitor.
Mount
the
two-section filter
capacitor
b
inserting
and
twisting
its
mounting
lugs.
MAIN
CHASSIS
WIRING
The
leads of
the
transformers
may
often be somewhat
longer
than
is necessary to
make
the
connections required
with
proper
lead
positioning. In
each
case where a trans-
former
lead
is to be connected, first
run
the
lead to
its
connection point, following
the
path
shown
in
the
pictorial
diagram. After
cutting
the
proper
length of
the
lead,
strip
%"
of
the
insulation
from
the
end
of
the
lead,
and
"tin"
the
end
by
heating
it
and
applying
solder to it; this pre-
vents fraying
strands
and
ensures
a more secure mechani-
cal bond before soldering.
1(
..('
Connect
the
red
lead from
the
rear
output
trans-
former to
lug
#4
(square
symbol) of
the
four-
section filter capacitor.
See
pictorial for wire
position.
2 (
\t
Connect
the
red
lead
from
the
front
output
trans-
former to lug
#4
(square
symbol) of
the
four-
section filter capacitor.
See
pictorial for wire
"'position.
3
(V'J
Twist
together
the
blue-and-white
and
green-and-
white leads from
the
output
transformer
nearest
to
the
front
of
the
chassis. Connect
the
blue-and-white lead
to
pin
#7
of V-7
(S).
Connect
the
green-and-white
lead
to
pin
#9
of V-7
(S).
4 (
~Twist
together
the
blue
and
green leads from
the
output
transformer
nearest
to
the
front of
the
chassis. Connect
the
blue lead to
pin
#7
of
N-
(S).
Connect
the
green
lead
to
pin
#9
of
V-B.
5
(V"')
Twist
together
the
blue-and-white
and
green-and-
white leads from
the
output
transformer
nearest
to
to
the
rear of
the
chassis.
Connect
the
blue-and-
white
lead
to
pin
#7
of V-5
(S).
Connect
the
green-
and-white lead to
pin
#9
of V-5
(S).
6 ( vf
Twist
together
the
blue
and
green
leads
of
the
out-
put
transformer nearest to
the
rear of
the
chassis.
Connect
the
blue
lead
to
pin
#7
of V-6
(S).
Con-
nect
the
green
lead
to
pin
#9
of V-6.
7
(vr--Twist
together
the
two red leads from
the
power
transformer
PA-774. Connect
either
one of
the
red
leads to
lug
#4
of terminal
strip
TS-l.
8(
~Connect
the-
other
red power transformer
lead
to
.
~
#5
of terminal
strip
TS-l.
9 ( J.1""Connect
the
red-and-yellow power transformer lead
Jp-mounting
lug.:A
of
the
four-section filter capacitor.
10(0"Twist
together
the
brown
and
brown-and-white leads
from
the
power transformer.
Pass
the
leads
under
the
cable clamp,
and
connect
the
brown lead to
lug # 1 of terminal
strip
TS-2.
Connect
the
brown-
and-white
lead
to
lug
#2
of TS-2.
NOTE:
These
transformer leads
should
be
inserted
into
the
eyelet
that
holds
the
terminal to
the
strip,
thereby
providing
more
space
on
the
lug
for
the
other
wires
to
be
connected.
11
(prTwist
together
the
green
and
green-and-white leads
from
the
power transformer.
Pass
these leads
unde
the
cable clamp,
and
connect
the
green
lead
to lug
\
I