Technical data

85108L System Manual
System Service and Troubleshooting
Overview
6-2
Overview
This section provides troubleshooting information for the racked, factory-configured pulsed-RF
network analyzer system, which may also be useful for similar user-configured systems. It provides
board/assembly level information for the features that are unique to wide BW, pulsed-RF operation
and the 85102 Option 008. For operation in the normal BW, nonpulsed-RF mode, refer to the 8510C
On-Site Service Manual for board/assembly level service information.
For additional troubleshooting assistance:
• a block diagram of the system and a block diagram of the IF detector, including the pulsed-RF
portion, are included at the end of this section.
• contact an Agilent customer engineer who can provide service support for your pulsed-RF
network analyzer system. See “Contacting Agilent” on page iv.
Documentation Required
Additional information and troubleshooting procedures are contained in the following manuals:
• 8510C On-Site Service Manual (part number 08510-90282)
• 85110L Operating and Service Manual (part number 85110-90048)
• 8360 Series Troubleshooting Manual
Troubleshooting Strategy
1. Note the symptoms of the failure
Write down the failure now while it is still fresh in your mind.
• What are the symptoms?
• Is the failure constant or intermittent?
• Does the failure always occur under a fixed set of conditions?
2. Check the system setup
The system setup check verifies that the system cabling, firmware revisions, GPIB addresses, and
operating languages are correct.
Perform this procedure with the instruments turned off.
1. Use the cabling diagrams on page 2-13 as you verify the system connection for correct location
and tightness.
2. Use Table 6-1 as you verify the system settings.