Keysight Technologies N5247B Service Manual page 74

Tests and Adjustments
Performance Tests
Figure 3-14 Dynamic Accuracy at Low Frequency Setup
If the Analyzer Fails this Test:
— If the analyzer fails this test, rerun the test.
— If the analyzer fails this test repeatedly, run the DC continuity test. Refer to
— If the analyzer still fails this test, replace the A70 LFE board and repeat this
— If the analyzer fails this test repeatedly, replace the A23 mixer brick for a
— If the analyzer still fails this test, replace the A12 SPAM board and repeat
3-44
"DC Continuity Test the LFE Board and Test Ports (Available With Low
Frequency Extension (LFE) Installed Option 205/425)" on page 3-53
"Removing and Replacing the A70 or A75 Low Frequency Extension (LFE)
Board" on page 7-72.
test. Refer to "Removing and Replacing the A70 or A75 Low Frequency
Extension (LFE) Board" on page
Port 1 or Port 2 failure or the A24 mixer brick for a Port 3 or Port 4 failure,
then repeat this test. Refer to
Mixer Bricks" on page
this test. Refer to "Removing and Replacing the A4–A17 Boards" on
page 7-18.
7-72.
"Removing and Replacing the A27 and A28
7-41.
Keysight N5247B Service Guide
and to