Technical data
98 Getting Started Guide
5 Troubleshooting
Check the Basics
o Is there power at the receptacle? 
o Is the test set turned on? Check to see if the green LED beside the power switch is on. 
Also, listen for internal fan noise to determine if the test set cooling fans are running. 
o If other equipment, cables, and connectors are being used with your test set, make 
sure they are connected properly and operating correctly. 
o If the analyzer cannot completely load or run the operating system, or the instrument 
application is not successfully launched, the problem could be a corrupt hard drive. If 
the analyzer gets far enough along in the boot process to run the "Agilent Recovery 
System", perform the “Hard Drive Recovery Process” on page 65. 
o Is the Measurement Application running? If not, there is a software launch 
shortcut/icon on the desktop.
o Does the test set application have the focus? (That is, is the blue window banner 
highlighted?) If not, move focus to the application with Alt-Tab.
o Review the measurement procedures being performed when the problem first 
appeared. Are all of the settings correct? 
o If the test set is not functioning as expected, return the test set to a known state by 
pressing 
Mode Preset.
o Is the measurement being performed, and the results that are expected, within the 
specifications and capabilities of the test set? Refer to the specifications guide for 
your test set. Technical manual pdf files are available in the test set (C:\Program 
Files\Agilent\SignalAnalysis\Infrastructure\Help\files), on the documentations cd 
provided with the test set, and on the Agilent website:  
http://www.agilent.com/find/E6630A
o If the test set is not communicating via the LAN connection, check for the presence 
of blinking yellow LEDs on the rear panel LAN connector. If the ACT LED is not 
blinking, check the LAN cable and LAN integrity.
o To meet specifications, the test set must be aligned. Either the Auto Align (On) 
feature must be selected (press 
System, Alignments, Auto Align, Normal), or the 
test set must be manually aligned. 
o Perform an Alignment. Press 
System, Alignments, Align Now, All. 
Some test set settings are not affected by a Preset. If you wish to reset the 
test set settings, press 
System, Power On, Restore Power On Defaults.










