Receiver Troubleshooting Information On This Chapter; Assembly Replacement Sequence - Agilent Technologies 8719ET Service Manual

Receiver Troubleshooting
Information on This Chapter
Information on This Chapter
Use this procedure only if you have read
the procedures in the order given, unless instructed otherwise.
This section can be used to determine which receiver assembly of the instrument is faulty.
The two receiver assemblies that affect all three signal paths are the digital IF (A10) and
reference assemblies (A12). The receiver assemblies that are associated with specific
signal paths are listed in
Table 8-1 Receiver Assemblies and Associated Paths
Signal Path Port
R or R1
R2 (Option 400)
A
B

Assembly Replacement Sequence

The following steps show the sequence to replace an assembly in the network analyzer.
Step 1. Identify the faulty group. Begin with
Follow up with the appropriate troubleshooting chapter that identifies the faulty
assembly.
Step 2. Order a replacement assembly. Refer to
Step 3. Replace the faulty assembly and determine what adjustments are necessary.
Refer to Chapter 14 , "Assembly Replacement and Post-Repair Procedures."
Step 4. Perform the necessary adjustments. Refer to
Correction Constants."
Step 5. Perform the necessary performance tests. Refer to
Verification and Performance Tests."
8-2
Chapter 4 , "Start Troubleshooting Here."
Table 8-1.
Directional
Coupler
internal NA
internal NA
1 A62
2 A63
Sampler 2nd
Assembly Converter
A64 A6
A67 A6
A65 A4
A66 A5
Chapter 4 , "Start Troubleshooting Here."
Chapter 13 , "Replaceable Parts."
Chapter 3 , "Adjustments and
Chapter 2 , "System
8719ET/20ET/22ET
8719ES/20ES/22ES
RF Network Analyzers
Follow
Service Guide