Operating
Instructions
—
Type
535A
When
you are using the Type CA Unit in
the chopped
mode
to obtain a dual-trace presentation, switching tran
sients
will be displayed on the screen, You can eliminate
these
switching
transients by placing the CRT CATHODE
SELECTOR
switch on
the rear of the instrument
in the DUAL
TRACE
CHOPPED BLANKING position.
Intensity Modulation
The
crt
display of the Type 535A Oscilloscope can be
intensity
modulated by an external signal to
display
addi
tional information. This is
done by
disconnecting the ground
ing
bar from the EXTERNAL CRT CATHODE connector
at
the rear
of
the instrument and connecting the external sig
nal
to this terminal. The
CRT CATHODE
SELECTOR switch
must
be
in
the EXTERNAL CRT CATHODE position.
When
you wish to make very
accurate time measurements
from
the
crt display, you can intensity modulate the beam
with
time
markers and make your measurements directly
from the
time markers presented on the screen. A positive
signal
of approximately 25 volts is required to cut off the
beam from normal
intensity.
HORIZONIAL OISFL
Controls
B
sweep.
LENGTH
length
of
DIS-
the
type
display
INTENSITY
--
Adjusts
brightness
of
rhe
oscil
loscope
display.
STABILITY
-- Controls
stability
of
the
oscillo
scope
display.
TRIGGERING MODE-
Selects
the
mode
of
trig
gered operation.
HORIZONTAL
PLAY-
-Selects
of
oscilloscope
which
is presented
TRIGGERING
LEVEL
—
Sets
the
point
on
the
trig
gering
waveform
where
the
sweep
is
triggered.
VARIABLE
10-1
--Con-
t
rols
the
gain
of
the
horizontal
amplifier
for
external
horizontal
in
put
signalsi
TIME/CM
and
Variable--,
Controls
the
Time
Base
A
sweep
speeds,
and
hori
zontal size
on
the
dis
played
waveform.
rrpe
5
Xs
oscntoscopf
AMPLITlIDE
C
AL
IB
RATOR
-
-
Controls
the amplitude
of
the
Calibrator
square
waves
at
the
CAI..
OUT.
connector.
SCALE
ILLUM
Adjusts
the
brightness
of the
graticule
mark
Ings.
\
5X
MAGNIFIER-Pro
vides
a
5
times
hori
zontal expansion
of the
displayed
waveform.
FOCUS--Used
in
con
junction
with
the
ASTIG
MATISM
control
to
focus
the oscilloscope
display.
TRIGGER
SLOPE
-’
-
Selects
the triggering
signal
source
and
deter
mines
whether
the
sweep is
triggered
on
the
+
or
- slope
of the
triggering
waveform.
TIME
BASE
B--Time
■Base
B
controls,
except
for
the
Length
control,
perform
rhe
same
func
tions
as
corresponding
Time
Base
A
controls.
HORIZONTAL
POSITION
and
VERNIER
-
Adjusts the
horizontal
position
of
rhe
trace.
Fig.
2-12.
Functions of the Type 535A Oscilloscope front ponel controls.
@®1
2-13
Summary of Contents for 535A
Page 2: ......
Page 4: ...Type 535A ...
Page 28: ...Circuit Description Type 535A 4 2 Fig 4 1 Simplified Type 535A Vertical Amplifier ...
Page 30: ...Circuit Description Type 535A 4 4 Fig 4 2 Simplified Time Base Trigger Circuit ...
Page 32: ...Circuit Description Type 535A Fig 4 3 Simplified Time Base Generator 4 6 ...
Page 34: ...Circuit Description Type 535A 4 8 Fig 4 4 Simplified Delay Pickoff Circuit ...
Page 38: ...Circuit Description Type 535A Fig 4 6 Simplified Alternate Trace Operation Circuitry 4 12 ...
Page 39: ...Circuit Description Type 535A 4 13 ...
Page 41: ...Circuit Description Type 535A Fig 4 8 Simplified Low Voltage Power Supply 4 15 ...
Page 42: ...Circuit Description Type 535A 4 16 Fig 4 9 Simplified Calibrator Circuit ...
Page 44: ...Circuit Description Type 535A Fig 4 10 Simplified Cathode Ray Tube Circuit 4 18 ...
Page 126: ...MRU ll IG 61 O Z ...
Page 138: ...C897 R896 R891 R890 R889 R888 R887 R886 R885 AMPLITUDE CALIBRATOR SWITCH Bottom View 535A A ...
Page 143: ...FIG 1 FRONT SWITCHES TVDC COCA ocril I iCrODC ...
Page 144: ...70 ...
Page 145: ...1 FIG 3 SWEEP CHASSIS HIGH VOLTAGE BOARD DELAY SWEEP CHASSIS ...
Page 146: ...1 FIG 4 POWER CHASSIS RECTIFIER MOUNTING PLATE A ...
Page 147: ...3 34 79 ...
Page 148: ...TYPE 535A OSCILLOSCOPE ...
Page 149: ......
Page 150: ...FIG 7 CABINET FRAME RAILS ...
Page 152: ...FIG 8 STANDARD ACCESSORIES 6 TYPE 535A OSCILLOSCOPE ...
