HP 1660 Series Service Manual page 82

Check the data pulse width. Using the oscilloscope, verify that the data pulse width
2 2
is 3.950 ns, +50 ps or − 100 ps.
a a In the oscilloscope Timebase menu, select Sweep Speed 2.00 ns/div.
b b Select Delay. Using the oscilloscope knob, position the data waveform so that the
falling edge of the waveform is centered on the screen.
c c In the oscilloscope Delta V menu, set the Marker 1 Position to Chan 1, then set Marker
1 at − 1.3000 V. Set the Marker 2 Position to Chan 1, then set Marker 2 at − 1.3000 V.
d d In the oscilloscope Delta T menu, select Start On Pos Edge 1. Select Stop on Neg
Edge 1.
e e If the pulse width is outside of the limits, adjust the pulse generator channel 1 width
and select the oscilloscope Precision Edge Find until the pulse width is within limits.
To test the single-clock, multiple-edge, state acquisition (logic analyzer)
3–53