McIntosh C20 - Prograrrr Connections (Input)

PROGRAM CONNECTIONS
INTO THE C-20
(Input
Connections)
Provision
has been made for eight separate
program
inputs controlled by the Input
Selec-
tor Switch,
one input
for
tape comparison
or
monitor
controlled
by the
'rTape
Compare"push
button,
and a
pair
of telephone
jack
inputs located on the front
panel and
controlled bythe
'rTape
Jack'r
push button.
I
@
I
@
(l)
Auxiliary
(Zl
Tape
(3)
Tuner
I
(41
Tuner
Z
(5)
Phono
I
(6)
Phono
Z
(
7
)
Tape Head
I
(8
)
Tape Head
Z
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COMPARE
INPUTS-r
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l.
The
auxiliary input
has a sensitivity of .25 volts and aninput irnpedance
of 470,000
ohrns
(470
K),
This input
will accept any auxiliary service, such as a
T. V.
set,
requiring
flat frequency
response.
Z. The tape input
has sensitivity and input impedance the same as
the
auxiliary
input.
This
input is designed
to operate with self contained tape machines, that is, machines
having
their
own
playback
preamplifier.
The
high input irnpedance of
this channel will
not
adversely
load any tape rnachine or tape
deck amplifier.
Note
that when the
Tape Jack
switch
on the
front
panel
is
pressed
in to the
'rlnrr
position
this
input
is disconnected
so
that the tape arnpli-
fiers
in
this
circuit
will not load
the tape
machine amplifiers plugged into
the
front panel
jacks
on the
C-20.
3
&
4. The two tuner irrputs each
have a sensitivity
of. Q.25 volts and input impedanoe
of
470,000 ohrns
(470
K). Two inpute are
provided
so that AM and FM outputs frorn a
stereo
tuner or
a
pair
of tuners can be
plugged
into one input, such as the
"Tuner
fl"
pair of
jacks,
and the
left and right outputs of a multiplex adapter may be
plugged
into the
"Tuner
$2"
paft
of
jacks.
5
&
6.
Each
phono input hae been arranged in
three
groups
of
two
jacks.
@
-
8-