12
TRACE ROTATION
CURRENT PROBE
CAL
CH
lOUT
B + GATE
A+
GATE
A
SWEEP
settings selected
by
the B
TIM
E/
DIV
switch. B
sweep
rate
is
cali-
brated when control
is
set fu
lIy
clockwise
to
CAL.
Screwdriver adjustment
to
align
trace
with
horizontal graticule lines.
Current
loop
providing
five-
mill
iampere square-wave current
from
calibrator circuit.
Output
connector
providing a
sample
of
the
signal
applied
to
the
INPUT
CH
1 connector
~hen
the
TRIGGER
switch
is
in the NORM
position.
Output
connector providing a
rec-
tangular 12.6
volt
pulse coincident
with
B
sweep.
Output
connector providing a
rec-
tangular 12.6
volt
pu
Ise
coincident
with
A Sweep.
Output
connector
providing a
sample (10 volts in amplitude)
of
X-GAIN (X-V)
ASTIG
Rear Panel
Z
AXIS
II\JPUT
Line Voltage Selector
454A
the sawtooth signal produced
by
the A Sweep Generator.
Screwdriver adjustment to calibrate
X-axis deflection in the X-V mode.
(Astigmatism) Screwdriver adjust-
ment
used
in conjunction
with
the
FOCUS control
to
obtain a well-
defined display.
Does
not
require
readjustment in normal
use.
Input
·connector
for
intensity mod-
ulation
of
the CRT display.
Switching assembly
to
select the
nominal operating voltage
and
the
line voltage
range.
The assembly
al-
so
includes the line fuses.
Voltage Selector: Selects nominal
operating voltage
range
(115 V
or
230
V).
Range
Selector: Selects line voltage
range (low, medium, high).
®
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