Tektronix 5110, Инструкция по эксплуатации

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Specification and Performance Check-5110
11. Check Horizontal Bandwidth
a. Connect the sine-wave generator to the amplifier
input, using a 42-inch coaxial cable and 50 ohm termina­
tion.
b. Adjust the sine-wave generator controls for a 6-
division display at a frequency of 50 kHz. Position the
display between the second and eighth vertical graticule
lines.
c. Without changing the output amplitude, increase
the sine-wave generator frequency until the displayed
amplitude is reduced to 4.2 divisions.
d. Check—the generator for a reading of at least
2 MHz.
e. Disconnect the coaxial cable and termination from
the amplifier input connector.
12. Check X-Y Phase Difference
a. Press the POWER switch to turn off the os­
cilloscope.
b. Remove the time-base unit from the vertical com­
partment and install the second amplifier unit in the left
vertical compartment.
NOTE
Identical amplifier units should be installed in the
oscilloscope.
c. Connect the sine-wave generator through a 42-inch
coaxial cable, 50 ohm termination, and atee connector, to
an amplifier input. Connect an 18-inch coaxial cable from
the tee connector to the other amplifier input.
d. Pull the oscilloscope POWER switch to on.
e. Set both amplifier units for a deflection factor of
1 volt/division and de input coupling.
f. Set the sine-wave generator for a 100-kilohertz
output.
g. Adjust the vertical and horizontal position controls
to center the diagonal display, then adjust the sine-wave
generator for a display amplitude of 6 divisions vertically
and horizontally.
h. Check— the opening of the diagonal-loop display at
the graticule center line is 0.07 division or less (measure
horizontally). This indicates a phase difference of 1° or
less between the vertical and horizontal systems.
13. Check Z Axis Amplifier
a. Press the POWER switch to turn off the os­
cilloscope.
b. Disconnect the coaxial cables, termination and tee
connector between the amplfiers and sine-wave
generator.
c. Remove the
vertical amplifier from the horizontal
compartment and install the time-base unit in that com­
partment. Pull the oscilloscope POWER switch to on.
d. Set the time-base unit for auto, internal triggering at
a sweep rate of 20 µs/division and set the amplifier for a
deflection factor of 2 V/division.
e. Connect a 50 kHz sine-wave signal from the sine­
wave generator through a 42-inch coaxial cable and a tee
connector to the amplifier input.
f. Set the amplifier and sine-wave generator controls
to obtain a calibrated 10 volt referencedisplay (5divisions
of display).
g. Set the oscilloscope INTENSITY control for a dim
display.
h. Connect the signal from the output of the tee
connector at the amplifier input, to the EXT INTENSITY
INPUT connector on the front panel.
i. Check— the top of the waveform is intensified and
the bottom portion is blanked out.
j. Temporarily disconnect the coaxial cable at only the
EXT INTENSITY INPUT connector.
k. Set the time-base unit for a sweep rate of
2 µs/division, and increase the output frequency of the
sine-wave generator to 1
MHz.
l. Reconnect the coaxial cable to the EXT INTENSITY
INPUT connector.
m. Check— for a noticeable effect of intensification in
the top portion of the displayed waveform and blanking in
the bottom portion of the waveform.
n. Disconnect the coaxial cables and tee connector
from the amplifier and oscilloscope.
14. Check Calibrator Signal
a. Connect the 1X probe to the CH 1 input of the
amplifier. Connect the probe tip to the CALIBRATOR
loop.
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