Keysight Technologies N9030B Service Manual page 328

Hardware Options
A25 Wideband Analog IF Troubleshooting - Option B1X and B85
Verify the 2400 MHz Frequency Reference
1. Turn the instrument off.
2. Remove the instrument cover. Refer to
3. Turn on the signal analyzer and wait for the instrument to complete the
4. Press System, Alignments, Auto Align, Off.
5. Press Mode, IQ Analyzer
6. Press Meas, Complex Spectrum
7. Press Input/Output, RF Calibrator, 50 MHz
8. Press Mode Setup, IF Path, 160 MHz
9. Verify the 50 MHz signal is at −25 dBm on the analyzer display by pressing
10.Connect a known good spectrum analyzer to A25J302. Verify reference
328
Replacement Procedures"
boot up process.
FREQ, 50 MHz, SPAN, 1 MHz, Peak Search on the analyzer. The marker
readout should be 50 MHz at −25 dBm ±3 dB. If this reference signal is
measuring incorrectly, see
(RF/Microwave Analyzers)"
signal at 2400 MHz at a level of −30 dBm.
Chapter 16, "Assembly
in this service guide.
Chapter 4, "RF Section Troubleshooting
in this service guide.
N9030B PXA Signal Analyzer Service Guide