Keysight N9010B EXA Signal Analyzer Service Guide 239
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.
Figure 6-3 Ribbon Cables at A15J700 and A15J800