Keysight N9010A EXA Service Guide 239
Front End Control Troubleshooting
A15 Front End Control Assembly Troubleshooting
A15 Front End Control Assembly Troubleshooting
The N9020A, MXA Signal Analyzer utilizes an RF front end troubleshooting
board that can be used to verify some, but not all of the control circuitry on the
N9010A, EXA Signal Analyzer due to the additions of front end assemblies. The
troubleshooting board kit part number is N9020-60005 and includes the
troubleshooting board and required interconnect cables. If you have the
interconnect cables, you can order the board by itself using part number
E4410-60115. When using the troubleshooting board and cables on a EXA the
control logic for Input Attenuator A, Input Attenuator B, Low Band Switch and
some of the power supplies can be verified. The remaining control voltages and
RF signals can be measured directly with a voltmeter, oscilloscope or
functioning spectrum analyzer.
In order to verify the wide bandwidth I.F.'s and Aux I.F. output frequencies and
power levels the following specialty cables and connector will be needed:
MMCX (m) to SMB (f) cable, p/n 8121-0655
MMCX (f) to MMCX (f) barrel. Huber & Suhner 31_mmcx-50-0-1/111_0E
Visit: http://www.hubersuhner.com/de/ie70/hs-index
Other standard cables and connectors need to be used to adapt to the
voltmeter or the RF input of the functioning spectrum analyzer.