CAS 4040 - Amplifier Heatsink; Tape Input;Output Terminals; Auxiliary Input Terminals; Pickup Earth Terminal

14
.
(
L
)
&
15
.
(
R
)
CD
input
This
socket
is
for
any
auxiliary
piece
of
equipment
.
16
.
(
L
)
&
17
.
(
R
)
Tuner
sockets
These
sockets
are
for
the
connection
of
tuners
with
medium
/
low
output
levels
.
18
.
(
L
)
&
19
.
(
R
)
Disc
sockets
These
sockets
are
specifically
for
connecting
a
wide
range
of
pick
-
up
cartridges
.
The
CAS
4040
can
only
amplify
and
correctly
match
Moving
Magnet
cartridges
,
of
about
2
mVolts
output
,
plus
high
output
moving
coil
types
.
In
the
1987
version
of
the
CAS
4140
Serial
Nos
.
A
102390
,
an
extra
circuit
is
fitted
to
allow
for
use
of
low
output
Moving
Coil
cartridges
,
from
100
mVolts
upwards
.
A
switch
is
used
on
the
PC
board
to
select
either
MC
or
MM
.
See
diagram
1
.
No
extra
matching
components
are
required
for
Moving
Coil
,
as
the
circuit
automatically
compensates
for
different
cartridges
.
N
.
B
.
In
some
cases
,
more
capacitance
will
be
required
properly
damp
the
MM
cartridge
of
your
choice
.
This
will
need
fitting
externally
.
Please
consult
your
dealer
if
in
doubt
.
20
.
PU
Earth
terminal
The
pick
-
up
arm
and
metal
chasis
parts
of
your
turntable
will
need
earthing
,
and
this
should
be
separate
from
the
resistance
in
the
speaker
path
which
has
the
effect
of
reducing
the
amplifier
'
s
ability
to
damp
the
overshoot
of
the
loudspeaker
cone
at
low
frequencies
,
and
in
extreme
cases
it
will
modify
the
frequency
response
.
Connection
to
these
terminals
can
be
made
by
the
correct
type
of
4
mm
instrument
plug
,
preferably
the
type
that
has
a
self
cleaning
'
knife
edge
'
connection
.
A
pair
is
supplied
with
the
unit
.
N
.
B
.
This
applies
to
connections
3
,
4
,
5
,
6
,
7
&
8
.
9
.
Amplifier
heatsink
This
black
aluminium
extrusion
is
the
power
amplifier
heatsink
.
Care
should
be
taken
to
make
sure
that
it
is
ventilated
properly
,
as
prolonged
high
power
operation
will
raise
the
heatsink
to
a
higher
temperature
than
with
most
conventional
amplifiers
,
and
may
not
only
burn
you
if
you
touch
it
,
but
also
you
risk
igniting
any
inflammable
material
placed
near
to
it
.
So
keep
it
away
from
curtaining
etc
.
,
and
always
place
the
amplifier
on
top
of
any
other
equipment
,
such
as
tuners
and
tape
recorders
.
10
.
Tape
Output
Left
11
.
Tape
Output
Right
12
.
Tape
Input
Left
13
.
Tape
Input
Right
to
From
Tape
Recorder
To
Tape
Recorder