Agilent Technologies HP 8719D Service Manual page 238

5. Connect the network analyzer's PORT 1 to the spectrum analyzer input,
6. Set the parameters on the spectrum analyzer:
center frequency = 0.9 GHz
span = 200 MHz
You should see a signal at approximately 910 MHz.
7. Reconnect the spectrum analyzer to the A sampler (53).
8. Set the parameters on the spectrum analyzer:
start frequency = 0 Hz
stop frequency = 200 MHz
marker = 10 MHz
9. Press
turn the front panel knob to get a 10 MHz signal displayed on the spectrum
analyzer.
10. Reconnect the network analyzer's PORT 1 to spectrum analyzer input.
11. Set the parameters on the spectrum analyzer:
center frequency = 4.69 GHz
span = 200 MHz
You should see a signal at approximately 4.69 GHz.
If the signals appeared for both the low band and high band, you can
n
assume that all the assemblies are working correctly, with the exception
of the All phase-lock assembly.
If the high band signal didn't appear, there could be a faulty A68
n
Attenuator, Sl switch (HP 8722D Only), S2 switch, S3 switch, or
associated cabling.
If the low band signal didn't appear, there could be a faulty A57 fixed
n
oscillator, A53 mixer/amp, Sl switch (HP 8722D Only), S2 switch, S3
switch or associated cabling.
If neither low band or high band signal appears, there could be a faulty
n
Source Troubleshooting