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❒ Check that none of the keys are mechanically stuck.
❒ Check that the selected key is designed to accept data.
❒ Ensure that you are not attempting to enter a value that is greater than or less
❒ Check that the front panel "R" HP-IB STATUS light is not illuminated.
❒ Check that the signal at the test ports is switched on.
❒ If you are applying external modulation (AM) to the Agilent 8702D, check the
C A U T I O N
❒ Look for phase-lock error messages and then contact your nearest Agilent
If You Encounter a Problem
If there is no RF signal
The "entry off" is enabled after you press the ENTRY OFF key. To return to nor-
mal entry mode, press any function key that has a numeric parameter associ-
ated with it. For example, START.
For example, SCALE REF accepts data, but SYSTEM does not.
than its limit.
If the "R" HP-IB STATUS light is illuminated, a test sequence may be run-
ning, or a connected computer controller may be sending commands or in-
structions to, or receiving data from, the instrument. Press LOCAL if you want to
return to local control.
If there is no RF signal
a Press MENU, POWER, SOURCE PWR until ON appears on the SOURCE PWR softkey
label.
b Press MENU, POWER, POWER TRIP on OFF until OFF appears on the POWER TRIP
softkey label.
external modulating signal or external gate/trigger signals for problems.
If the error message: CAUTION: OVERLOAD ON INPUT X, POWER
REDUCED appears on the display, too much source power is being applied at
the input. In such a case, the input power will need to be reduced before the
source power will remain on.
Technologies office for service. A list of Agilent Technologies service offices is
provided on
page
7-8.
7-4
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