Agilent Technologies 8752C Service Manual page 275

Rechecking the A13/A14 Fractional-N
Figure 7-25. Stable HI OUT Signal in FRACN TUNE Mode
A7 Pulse Generator Check with Oscilloscope
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
SERVICE MENU SERVICE MODES FRACN TUNE ON
4 5 4 5
SYSTEM 50

4 5
M/
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SRC TUNE ON SRC TUNE FREQ 
4 5 4 5
50 M/
Source Troubleshooting 7-35