Oscilloscope Test - Keysight n9020a Service Manual

Front End Control Troubleshooting
A15 Front End Control Assembly Troubleshooting

Oscilloscope Test

Measurements can be made to verify the correct logic is getting to SW1 and
SW2 from the A15. In order to perform this measurement, the outer cover and
chassis RF bracket on the right hand side of the instrument must be removed.
Refer to Chapter 14, "Assembly Replacement Procedures" for the removal
procedures.
Figure 5-5, Figure 5-6, and Figure 5-7 illustrate the measurement location
where the oscilloscope probe should be used to measure the logic. There are
two connector bodies (1) with three wires each (green, black and purple). One
connector goes to SW1 and the other to SW2, 3 wires to each switch.
Figure 5-5 SW1 and SW2 Connector Location
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