Instruction manual

118 Chapter 4

Troubleshooting

Performance test failure troubleshooting

This section describes the adjustment and troubleshooting procedures used when the

E5061A/E5062A fails the performance tests. If the performance of the instrument is

critical for the test limits and seems to be adjustable, perform first the adjustment(s) related

to the failed test. When the test result is far from the tolerance of the test or the

performance is not adjustable, isolate the faulty assembly in accordance with the

"Performance tests failure troubleshooting procedure".

Recommended adjustment for performance test failure

Table 4-5 shows the recommended adjustments when the performance test fails. Select the

adjustment program corresponding to the recommended adjustment and perform the

adjustment.

Performance test failure troubleshooting

Table 4-6 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 diagnostic 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)

Table 4-5 Recommended adjustment for performance test failure

Test

Num.

First failed test Recommended adjustment

A1 Source A2 Receiver

1 Frequency accuracy test 

2 RF output level accuracy and flatness test 

3 RF output level linearity test 

4Trace noise test 

5 Crosstalk & System Dynamic Range test 

6 Dynamic accuracy test 

7 Uncorrected system performance test 