Agilent N5161A/62A/81A/82A/83A MXG Signal Generators Service Guide
Troubleshooting
No Output Power or Output Power is Unleveled (N5183A)
1-40
Figure 1-15 A3J6-3 and A3J10-B16
10. Refer to Figure 1-15. Using the voltmeter, measure A3J10-B16.
• If A3J10-B16 is ∼12V, perform the following steps:
a. Replace the A3 RF assembly.
b. Go to Chapter 4, "Post-Repair Procedures and Performance Verification".
• If A3J10-B16 is not ∼12V, replace the A1 Power Supply.
No Output Power or Output Power is Unleveled (N5183A)
1. Connect the signal generator’s RF output through a 10 dB attenuator to a spectrum analyzer.
2. Set up the spectrum analyzer:
a. Press
Preset.
b. Set the reference level to +25 dBm.
c. Set the start frequency to 50 kHz.
d. Set the stop frequency to the signal generator’s maximum frequency.
e. Set trace to Max Hold.
3. Set up the signal generator:
a. Press
Preset.
b. Press
SWEEP > Sweep Type List Step to Step.
c. Press
Configure Step Sweep.
•Press
Freq Start > 100 > kHz.
•Press
Freq Stop > <maximum_signal_generator_frequency> > GHz.
•Press # Points > 501 > Enter.
•Press More > Step Dwell > 2 > msec.
A3J6-4
A3J10-B16
Front Panel
Rear Panel
Rear Panel
Front Panel
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