Performance Test Failure Troubleshooting - Agilent Technologies E5071C Service Manual

###: Most suspicious assembly
##: Suspicious assembly
#: Possible faulty assembly

Performance test failure troubleshooting

Table 4-7 represents the relationships between the failed test and probable faulty assembly.
If the performance test failure cannot be removed by a proper adjustment, replace the
assembly shown in this table.
Note that this table lists some typical cases. There are possibilities that other assembly may
be faulty. To troubleshoot further, perform the diagnostics test procedures.
NOTE When Crosstalk, System dynamic range or Uncorrected system performance test fails,
check first whether the connections of the RF semi-rigid cables between the suspicious
assembly and others are tight or loose. Also check for possible disconnection (impairment)
of the cables and connectors.
Table 4-7 Performance test failure troubleshooting information
First failed test Probable faulty board assembly or parts
OCXO
AUX Input
Frequency Accuracy
(Standard)
Frequency Accuracy (1E5) #
RF Output Level Accuracy
& Flatness
RF Output Level Linearity
Trace Noise (S11)
Trace Noise (S22)
Trace Noise (S33)
Trace Noise (S44)
Trace Noise (S21, S12)
Trace Noise (S43, S34)
Crosstalk (S21, S12)
Crosstalk (S32)
Crosstalk (S43)
Crosstalk (S14)
System Dynamic Range
(S21)
Chapter 4
BAS SYN SYN VNR
-SRC -LCL
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Performance test failure troubleshooting
RCV RCV RCV RCV
-1 -2 -3 -4
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Troubleshooting
T2 CBL
-SW
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