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Selecting and Using "Other" Features
Running Self Test
NOTE If any or all of these connections are not made the HP 37718A will FAIL
Self Test.
4 Press to activate the Self Test. TEST STATUS RUNNING
will be displayed.
The information pertaining to TEST TYPE, TEST NUMBER and
SUBTEST NUMBER will change as the Self Test progresses.
If the HP 37718A is functioning correctly, after a time of at least 1
hour, TEST STATUS PASSED is displayed.
If TEST STATUS [FAIL nnn] is displayed, the HP 37718A should be
returned to a service office for repair.
HOW TO: Run Confidence TESTS
1 Choose TEST TYPE on the
display.
2 Insert a formatted disk into the instrument disk drive.
3 Make the loopback connections listed below:
Connect Transmit module 75Ω OUT to Receive module 75Ω IN
Connect Transmit module 100/120Ω OUT to Receive module 100/
120Ω IN
Connect Transmit module 75Ω MUX to Receive module 75Ω DEMUX
Connect Transmit module 100/120Ω MUX to Receive module 100/
120Ω DEMUX
Connect Multirate Analyser IN to OUT
Connect Optical OUT to Optical IN via a 15 dB attenuator.
RUN/STOP
CONF. TESTS
OTHER
SELF TEST