TFT 844 - Page 14

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3.4
MAIN
CH.
DE-EMPHASIS
75us
DE-EMPH
Switch
RIGHT
AND
LEFT
output,
TB3
Composite
and
alann
outputs,
TB2
Remote
meter outputs,
TBl
EXT
COMPOSITE
IN
Jack
Composite
level Control
Composite
Select
Switch
Calibration
Provides composite output
which
has
been
passed
through a
75
s de-emphasis
network for external
monitoring.
Allows
the
75us
DE-EMPHASIS
circuit
to
be
switched into
the
LEFT
and
RIGHT
channel
demodulated output.
Provides demodulated
left
and
right
channel
information.
Provides a balanced
composite out signal
and
the
outputs for the optional
al
arm
circuits.
Provides
flasher
and
metering data for the
Model
804
Remote
Metering Panel.
Provides metering
capabilities
for monitoring
an
external composite signal
(
8Vpp}
Adjust
the
Level
of the
EXT
Composite
Input.
Select internal External
Composite
Signal to
be
applied to the metering
circuits.
Calibration
of
the meter
circuits
and
peak
detector
are the only
calibration
required for the
model
844.
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