Calibration— Type 5 0 3
22. Check Compression or Expansion—
Horizontal
a. Check that the SENSITIVITY switch is set to .2 VOLTS/
CM.
b. Change the Standard Amplitude Calibrator to .5 V
output.
c. W ith the VARIABLE control, adjust the dot spacing
for exactly 2 cm, and center the display horizontally and
vertically.
d. W ith the HORIZONTAL POSITION control, move the
right-hand dot to the 10-cm vertical graticule line.
e. Check— Dot spacing 2 cm ± 1 .5 mm.
f. Move the left-hand dot to the left edge (0-cm) of the
graticule.
g. Check— Dot spacing 2 cm ± 1 .5 mm.
h. Return the VARIABLE control to CALIBRATED.
23. Check Amplifier Balance— Horizontal (DC
Common Mode Rejection)
a. Connect an additional 50-ohm cable to the Standard
Amplitude Calibrator output, using a UHF T adapter, and
a quick-connect adapter on the output end of the cable.
b. Set the HORIZONTAL — INPUT connector to DC, and
connect the cable added in step (a) to the — INPUT con
nector.
c. Change the Standard Amplitude Calibrator output to
5 volts, and the HORIZONTAL SENSITIVITY switch to .2
VOLTS/CM.
d. The display w ill be two dots spaced horizontally. W ith
the HORIZONTAL POSITION control, move the display to
the right-hand and then to the left-hand vertical graticule
line.
e. Check— The total horizontal amplitude of the display
should not exceed 2.5 mm anywhere in the graticule area
(CMRR 100:1).
f. Change the Standard Amplitude Calibrator output to
0.5 volts, and the HORIZONTAL SENSITIVITY switch to
1 mV/CM, and repeat step (d).
g. Check— The horizontal amplitude o f the display should
not exceed 5gfrT anywhere in the graticule area.
h. Change tfre' HORIZONTAL SENSITIVITY switch to .5
VOLTS/CM, and the Standard Amplitude Calibrator to 50
volts, and repeat step (d).
i. Check— The horizontal amplitude of the display should
not exceed 2 curr anywhere in the graticule area, (50:1
CMRR).
c " *
j. Change the HORIZONTAL SENSITIVITY switch to 5
VOLTS/CM and the Calibrator output to 100 volts; repeat
step (d).
k. Check— The horizontal amplitude of the display should
not exceed 4 mm anywhere in the graticule area.
ft
24. Check Compression or Expansion— Vertical
a. Set the Standard Amplitude Calibrator to .5 volts, and
chanqe the HORIZONTAL + and — INPUT switches to
GND.
b. Move the Standard Amplitude Calibrator signal from
the HORIZONTAL -(-INPUT connector to "Hh.
VERTICAL
-(-INPUT connector, and change the VERTICAL -(-INPUT
switch to DC.
c. Set the VERTICAL SENSITIVITY switch to .2 VOLTS/
CM.
d. The display should consist of two dots spaced verti
cally. W ith the VERTICAL VARIABLE control, adjust the dot
spacing for exactly 2 cm, and center the display vertically.
e. Move the display to the top 2 cm of the graticule.
f. Check— Dot spacing 2 cm ± 1 .5 mm.
g. Move the display to the bottom 2 cm of the graticule.
h. Check— Dot spacing 2 cm ± 1 .5 mm.
i. Return the VARIABLE control to CALIBRATED.
25. Check Amplifier Balance— Vertical
(DC CMRR)
a. Move the Standard Amplitude Calibrator signal from
the HORIZONTAL -IN P U T connector to the VERTICAL
— INPUT connector.
b. Change the Calibrator signal to 5 volts, and set the
VERTICAL -IN P U T switch to DC.
c. Change the HORIZONTAL DISPLAY switch to SWEEP
NORMAL ( X I) , and center the display vertically and hori
zontally. It may be necessary to adjust the INTENSITY con
trol.
d. W ith the VERTICAL POSITION control, move the dis
play to the top line of the graticule, and then to the bot
tom line of the graticule.
e. Check— Trace separation not to exceed 2.5 mm (CMRR
100
:
1
).
f. Change the VERTICAL SENSITIVITY to 1 mV/CM, and
change the Standard Amplitude Calibrator output to 0.5
volt.
g. Repeat step (d).
h. Check— Trace separation not to exceed 5 cm.
NOTE
A ty p ic a l d is p la y is shown in Fig. 6 -1 4 . The trace
separation is in d ica te d a t the lo w -fre q u e n c y p o r
tio n o f the square-w ave signal.
i. Change the VERTICAL SENSITIVITY switch to .5 VOLTS/
CM and the Standard Amplitude Calibrator output to 50
Volts.
j. Check— Trace separation not to exceed 2 cm any
where within the graticule area.
k. Change the VERTICAL SENSITIVITY switch to 5 VOLTS/
CM and the Standard Amplitude Calibrator output to 100
Volts.
l
. Check— Trace separation not to exceed 4 mm any
where within the graticule area.
©
6-13
Содержание 503
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Страница 10: ...O perating Instructions Type 503 2 3 Fig 2 2 Type 503 Oscilloscope front panel ...
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Страница 112: ...T R K a G iE B IN P U T A M P L IF IE R T V p E 5 0 3 O SCILLO SCO PE D ...
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Страница 116: ...c L O a l LLl A uJ u e x a uJ LLl t i ...
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Страница 121: ...n I u J a d i ...
Страница 132: ...FIG 1 FRONT ...
Страница 133: ...FIG 1 FRONT TYPE 503 OSCILLOSCOPE ...
Страница 134: ...FIG 2 SWITCHES ...
Страница 135: ...FIG 2 SWITCHES TYPE 503 OSCILLOSCOPE ...
Страница 136: ...FIG 3 CRT SHIELD 2 5 A I ...
Страница 137: ...FIG 3 CRT SHIELD f TYPE 503 OSCILLOSCOPE ...
Страница 138: ...FIG 4 CHASSIS REAI ...
Страница 139: ...TYPE 503 OSCILLOSCOPE ...
Страница 140: ...FIG 5 CABINET 7 ...
Страница 141: ...TYPE 503 OSCILLOSCOPE ...
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