2.}
Brief
Operating
Instructions
The
following
switch
positions
are
required
for
generating
a
standard
coded
signal:
0
Input
selector
1
to
(:>(on).
0
Common
level
adjustment
for
L
and
R
channels
with
g,
2
and
fl.
0
PRE-EMPH.
button
2
pushed,
i.e.
preemphasis
switched
on.
o
PILOT
switch
g
to
®(on),
i.e.
standard
pilot
level.
0
STEREO
button
A;
pushed.
2.4
Ogeration
2.4.1
L
and
R
Inpgfis
Connections
The
sound
sources
are
applied
to
the
female
connectors
or,
if
the
stereocoder
is
rack—mounted,
to
the
connector
strip
22
(contacts
L
=
Oabc,
R
=
9abc;
see
Fig.
3).
The
inputs
may
be
balanced
or
unbalanced.
The
input
voltages
must
be
free
from
any
DC
component
to
avoid
DC
magnetization
of
the
transformers.
Channel
L
EulO
(gg)
Sthl.Oab-c
(23)
Channel
R
EuEO
(2;)
Sthl.9ab-c
"'
Input
selection
Switch
l
permits
the
above
inputs
to
be
switched
on
and
off
as
well
as
the
signal
from
the
built—in
AF
generator
to
be
applied
for
checks
and
measurements.
Level
adjustment
The
attenuator
switches
g,
5
and
5
adjustable
in
steps
of
5
dB,
0.5
dB
and
0.1
dB
are
effective
on
both
the
left
and
the
right
channels.
The
labelling
on
the
switches
refers
to
the
nominal
input
level.
Nominal
levels
2
2
fl
The
nominal
levels
are
adjustable
between
-4
and
+8
dEm,
resulting
in
a
value
R
38122
-
9