Tektronix 7B53A Instruction Manual page 7

MAIN
TRIGGERING
CONTROLS
OB
DLY TIME
TEKTRONIX
Operating lnstructions-7B53A/7B53AN
Operators
EXT
i- 10
DELAYED
TRIGGERING
CONTROLS
CONTROLS AND CONNECTORS
General
All controls required for the operation of the 7B53A/
7B53AN,
except
the Variable Selector and
the Dly'd
Sweep
Gate
Out
connector
(see Fig. 1-3), are located
on
the front
panel of the instrument.
To make
full
use of the
capabilities
of
this
instrument, the operator should be
familiar
with
the
function and use
of each control.
A
brief description of the
front-panel
controls and connectors
is
given here.
More
detailed information
is
given under
General Operating
Information.
Fig.
1-4
shows
the front panel and
external
controls and connectors
of the
7B53A/7B53AN.
1.
Main
Triggering Controls
LEVEL,
Selects the
amplitude
point
on
the
trigger signal
where sweep
triggering occurs.
SLOPE.
Two-position
switch permits
triggering
on
the
positive-going or negative-going portion
of the
main
trig-
gering
signal.
TRIG'D.
Light
indicates that the main sweep
is
triggered
and
will
produce
a
display.
MODE.
Pushbutton
switches
select the operating
mode
for
the main
triggering
circuits.
COUPLING.
Pushbutton
switches
select the
method
of
coupling the
triggering signal to the
main
triggering
circuits.
SOURCE.
Pushbutton
switches
select the source of the
main
triggering
signal.
INPUT/OUTPUT
CONNECTORS
DUAL TIME BASE
7B53A
SWEEP
CONTROLS
Fig. 1-4. Front-panel controls
and
connectors.
DELAY
TIME
CONTROL