HP 8753D Option 011 Service Manual page 257

Allows you to monitor the analog bus nodes (except nodes 1, 2, 3, 4, 9, 10,
AUX OU on OFF
12) with external equipment (oscilloscope, voltmeter, etc.). To do this,
connect the equipment to the AUX INPUT BNC connector on the rear
panel, and press
Caution
To prevent damage to the analyzer, rst connect the signal to the rear panel
AUX INPUT, and then switch the function ON.
witches the internal counter o and removes the counter display from the
COUN ER: OFF
display. The counter can be switched on with one of the next three keys.
(Note: Using the counter slows the sweep.) The counter bandwidth is 16
MHz unless otherwise noted for a speci c node.
ote
OUTPCNTR is the HP-IB command to output the counter's frequency data.
switches the counter to monitor the analog bus.
ANALOG BUS
switches the counter to monitor the A14 fractional-N VCO frequency
FRAC N
at the node shown on the \Overall Block Diagram," in the \ tart
Troubleshooting" chapter.
switches the counter to monitor the A14 fractional-N VCO frequency after
DIV FRAC N
it has been divided down to 100 kHz for phase locking the VCO.
10-18 Service Key Menus and Error Messages
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, until is highlighted.
AUX OU ON
RAFT
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