Verifying Input Attenuator A, Input Attenuator B, Low Band Switch Logic And Power Supplies - Keysight N8973B Service Manual

Front End Control Troubleshooting
A15 Front End Control Assembly Troubleshooting
Verifying Input Attenuator A, Input Attenuator B, Low Band Switch
Logic and Power Supplies
1. Turn off the instrument.
2. Disconnect ribbon cables from A15J700 and A15J800 as shown
Figure 6-3 Ribbon Cables at A15J700 and A15J800
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6-3.
Keysight NFA Series Noise Figure Analyzers Service Guide
Figure