Verifying The A2 Lopa, A3 Loda, And A4 Phase Compensation Boards - Keysight Technologies N5290/1A PNA Series Service Manual

N5290/91A Troubleshooting
N5292A Test Controller Troubleshooting
Figure 4-11 Example of J7-J11 Digital Pin-Outs
Figure 4-12 Test Set Motherboard DC Test Point Values

Verifying the A2 LOPA, A3 LODA, and A4 Phase Compensation Boards

Refer to
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4-22
Figure 4-13 on page
"Verifying the A2 LOPA (LO Preamplifier)" on page 4-23
"Verifying the A3 LODA (LO Distribution Amplifiers)" on page 4-24
"Verifying the A4 Phase Compensation Board" on page 4-25
4-23, for the following sections:
Keysight N5290/1A Service Guide