Pulse Modulation Problems (N5173B/83B) - Keysight N5171B EXG Service Manual

Troubleshooting

Pulse Modulation Problems (N5173B/83B)

Pulse Modulation Problems (N5173B/83B)
1. Remove the external cover and the top inside cover. Refer to
2. Set up the signal generator:
3. Using a spectrum analyzer, verify that pulse modulation is present on the
4. Press FREQ > 2 > GHz.
5. Using a spectrum analyzer, verify that pulse modulation is present on the
6. If no pulse modulation is present at either frequency, replace the A3 RF
7. If pulse modulation is present at 5 GHz, but is not present at 2 GHz,
100
"Assembly Replacement."
covers.
a. Press Preset.
b. Press FREQ > 5 > GHz.
c. Press RF On/Off to On.
d. Press AMPTD > 0 > dBm.
e. Press Pulse Wid th > 2 > usec.
f. Press Pulse Period > 4 > usec.
g. Press Pulse > Pulse Off On to On.
RF output.
RF output.
Assembly and go to step
replace the A3 RF Assembly and go to
for instructions on removing the instrument
11.
step 11.
Keysight X-Series Signal Generators Service Guide
Chapter 3,