TFT 844 - Page 11

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4.
11
+
11
PEAK
lamp
5.
Th1.JT1bwheel
switches
6.
PEAK/MIN
counter
7.
LEFT/TEST
meter
8.
RIGHT
Channel
meter
9.
RIGHT
OUTPUT
jack
10.
LEFT/TEST
OUTPUT
jack
11.
STEREO
PILOT
lamp
12.
LEFT/TEST
METER
function
"+"
peak
1
amp
shows
whenever
the
positive
modulation
peaks exceed the percentage
which
the
thumbwheel
switches
has
been
set.
Sets the percent of
modulation at
which
the
11
+
11
and
11
-
11
peak
1
amps
on
point.
Counts
the
number
of
times
the
peak
lamps
on
over a
given period.
Indicates
the
function
switched in
by
the
LEFT/TEST
METER
function switches.
Input
to
this
meter
is
always
applied through a
selected
attenuator.
Measurements
can
be
made
down
to
70
dB
below
100%.
Indicates
right
channel
modulation independent of
selected function switch
position.
Right channel signal
supplied to front panel
BNC
jack.
Signal selected
by
LEFT/TEST
METER
function
switches
is
supplied
to
front
panel
BNC
jack.
Lights
when
19
KHz
pilot
signal
is
present.
Selects the function
and
attenuation
to
be
indicated
on
the
LEFT/TEST
METER
up
to
four switches
may
be
in uses
at a time.
1)
11
+
11
or
11
-
11
select
positive
or negative
modulation peaks .
2)
Deemph
switches in
the
deemphassis
circuit.