HP 85662A Troubleshooting And Repair Manual page 149

Spectrum analyzer if-display section
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- +4.2V
OVERSWEEP '
' D E A D T I M E
C
T
U N
O S
I L L A
O R
Figure 1. Fast Sweep Time Waveforms
When using (LINE) TRIGGER, the waveforms are similar except for the dead time. Following
the minimum dead time period, whenever a negative-going transition occurs at TP3, a ramp is
started. When the sweep ends, TP2 goes low and stays low until a negative-going transition
occurs at TP3. See Figure l-2 for the relationships between the ILINE) TRIGGER waveforms.

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