terminal
on
the
soldering—lug
strip
of
the
power
transformer.
This
soldering-
lug
strip
is
located
below
the
cover,
on
which
a
diagram
of
the
wiring
is
printed,
and
is
accessible
from
above
after
having
removed
the
stereocoder
from
the
rack.
Check
the
value
of
the
fuse
Sil
(lg)
and,
if
necessary,
insert
the
correct
value.
Change
the
voltage
value
on
the
label
below
the
power
connector
(g1)
accordingly.
2.2.2
Adjusting
the
Preemphasis
(L
and
R)
and
Deemphasis
(M
=
L
2
R)
________________________———————-———————-—-
The
capacitors
C101,
C115
and
0141,
which
determine
the
time
constant,
are
fitted
on
solder
tenninals.
Their
value
for
50
us
is
10
nF
(tl%)
and
for
75
us
15
nF
(fl%)3
the
value
set
in
the
factory
is
50
us.
2.2.}
Ingut
Resistance
By
changing
the
resistors
R138
and
R139
(solder
terminals)
the
input
resist—
ance
Bin
can
be
adjusted
up
to
4
k9.
For
Rin
=
600
Q,
R138
=
R159
=
700
9.
2.2.4
Chaggihg
to
Operating
Mode
MONO
For
the
transmission
of
monaural
signals,
the
stereocoder
can
drive
both
channels
from
one
input.Eithatthe
left
or
the
right
channel
must
be
set
by
a
link;
the
channel
will
then
feed
both
multiplex
outputs
in
the
mode
"linked"
(a
MONO).
Insert
the
link
2810}
into
L
for
the
left
channel
and
into
R
for
the
right
channel
according
to
the
silk-screening
on
the
printed
wiring
board.
2.2.5
Synchronization
to
External
Pilot
Tone
The
pilot-tone
circuit
can
be
adjusted
to
synchronization
with
an
external
pilot
tone.
Apply
the
pilot
signal
to
Sthl.3a
(50
=
.L)
with
a
level
of
Vpp
z
1
V.
Insert
the
link
E8104
into
E
(external).
In
normal
operation,
ERlO4
must
be
set
to
I
(internal).
2.2.6
Fitting
the
SCA
Modulator
(0
tion
See
separate
manual
and
specified
codings.
Fit
the
modulator
into
StllO.
Remove
the
link
ERlO?
to
enable
the
output,
and
insert
ERlOb.
The
AF
input
Sthl.5c
(60
=
J.)
is
at
the
rear
of
the
set.
R
58122
-
8
-
J
