HP 8566B Adjustment Manual page 199

3. Preliminary Display Adjustments (SN 3004A and Above)
12. Set the oscilloscope controls as follows:
Press m):
Channel 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .on
amplitude scale . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10.0 V/div
offset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..25.OOOOV
Channel 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . on
amplitude scale . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10.0 V/div
offset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..6O.OOOOV
Press (TRIG):
source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..l
level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25.0000 V
Press @KKK]:
time scale . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50.0 ns/div
delay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125.000
Press (jjj:
connect dots . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..on
Press m.
13. Set the spectrum analyzer front-panel INTENSITY control fully
counterclockwise, and then set the LINE switch to ON.
14. The X+ deflection and X- deflection waveforms should be
superimposed on the oscilloscope display, as shown in Figure 3-26.
If necessary, adjust AlA2R227 X POSN and AlA2R220 X GAIN
for a centered display of at least four vertical divisions. See
Figure 3-25 for the location of the adjustments.
- 1 2 5 . 0 0 0 ns
Figure 3-26. X+ and X- Waveforms
15. Set the oscilloscope controls as follows:
Press
f l . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . on
display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . on
math . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . channel 1 - channel 4
sensitivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..25.0V/di v
16. Three waveforms should be displayed on the oscilloscope, as
shown in Figure 3-27. The lower composite waveform represents
3 7 5 . 0 0 0 ns
1 2 5 . 0 0 0 " s
5 0 . 0 ns/div
ns
1 0 . 0 V/diV
25.00 v
Adjustments 3-59