Troubleshooting; Quick Check To Verify The Low Band Signal Path - Keysight N9010B Service Manual

RF Section Troubleshooting (RF/Microwave Analyzers)

Troubleshooting

Troubleshooting

Quick Check to Verify the Low Band Signal Path

The analyzer has an internal 50 MHz amplitude reference signal that is used to
verify the low band path. Refer to
Equipment needed:
To perform the following checks, it will be necessary to remove the outer
cover and the top brace. See
Turn the analyzer on and allow it to complete its full boot up process to
Spectrum Analyzer mode. Use the internal 50 MHz, −25 dBm calibrator signal
as a reference for troubleshooting by pressing Mode Preset, Input/Output, RF
Calibrator, 50 MHz on the analyzer. Now press FREQ, 50 MHz, Span, 1 MHz,
Peak Search. The 50 MHz reference signal should measure 50 MHz @
−25 dBm ± 2 dB on the analyzer display. If the power level is within tolerance,
the low band path is functioning correctly at 50 MHz. To verify the high band
path go to
If the power level is not within tolerance, press FREQ, Zero Span, AMPTD,
Attenuation, Mech Atten, 10 dB.
Turn off auto align by pressing System, Alignments, Auto Align, Auto Align,
IMPORTANT
Off.
142
Functioning Spectrum Analyzer
DVM
Cables & Connectors
"Quick Check to Verify High Band RF Path #1" on page
Chapter 12, "Block Diagrams"
Chapter 15 for removal procedures.
Keysight N9010B EXA Signal Analyzer Service Guide
for details.
169.