7-4
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.
❒Check that none of the keys are mechanically stuck.
❒Check that the selected key is designed to accept data.
For example, SCALE REF accepts data, but SYSTEM does not.
❒Ensure that you are not attempting to enter a value that is greater than or less
than its limit.
❒Check that the front panel “R” HP-IB STATUS light is not illuminated.
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. Pre ss LOCAL if you want to
return to local control.
If there is no RF signal❒Check that the signal at the test ports is switched on.
aPress MENU, POWER, SOURCE PWR until ON appears on the SOURCE PWR softkey
label.
bPress MENU, POWER, POWER TRIP on OFF until OFF appears on the POWER TRIP
softkey label.
❒If you are applying external modulation (AM) to the Agilent 8702D, check the
external modulating signal or external gate/trigger signals for problems.
CAUTION 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.
❒Look for phase-lock error messages and then contact your nearest Agilent
Technologies office for service. A list of Agilent Technologies service offices is
provided on page 7-8.