Agilent Technologies 83482A, User Manual, Page: 69 / 88

5-3
Reference
In Case of Difficulty
If the plug-in does not operate
1 Make the following checks:
• Is the plug-in module firmly seated in the mainframe slot?
• Are the knurled screws at the bottom of the plug-in module finger-tight?
• Is a trigger signal connected to a trigger input?
• If other equipment, cables, and connectors are being used with the plug-in
module are they connected properly and operating correctly?
• Review the procedure for the test being performed when the problem ap-
peared. Are all the settings correct? Can the problem be reproduced?
• Are the connectors clean? See “Cleaning Connections for Accurate Measure-
ments” on page 5-7 for more information about cleaning the connectors.
2 Perform the following procedures:
• Make sure the instrument is ready to acquire data by pressing
Run
.
• Find any signals on the channel inputs by pressing
Autoscale.
• See if any signals are present at the channel inputs by pressing
Trigger, Sweep,
freerun.
After viewing the signal, press
triggered.
• Make sure Channel Display is on by pressing
Channel
,
Display on off, on
.
• Make sure the channel offset is adjusted so the waveform is not clipped off
the display.
• If you are using the plug-in module only as a trigger source, make sure at
least one other channel is turned on. If all of the channels are turned off, the
mainframe will not trigger.
• Make sure the mainframe identifies the plug-in module by pressing
Utility
,
then
System config
....
The calibration status of the plug-in modules is listed near the bottom of the
display, in the box labeled
“Plug-ins”.
If the model number of the plug-
in module is listed next to the appropriate slot number, then the mainframe
has identified the plug-in.
If
“~known”
is displayed instead of the model number of the plug-in
module, remove and reinsert the plug-in module in the same slot. If