Agilent Technologies HP 8566B Dokumentacja Strona 191

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3. Preliminary Display Adjustments (SN 3001A and Below)
12. Set the oscilloscope controls as follows:
Press
(CHAN]:
Channel 1
....................................................
on
amplitude scale
......................................
10.0
V/div
offset
.............................................. ..25.0000
V
Channel 4
....................................................
on
amplitude scale
.................................... ..lO.OV/di
v
offset
..............................................
..60.000 0 V
Press
ITRIG):
source
......................................................... .
level
.................................................
25.0000 V
Press (TIME]:
time scale . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
50.0 ns/div
delay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125.000 ns
Press
(-1:
connect dots . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
..on
Press
ISHOW).
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 3-19.
If necessary, adjust
AlA4R7
X POSN and
AlA4R27
X GAIN for a
centered display of at least four vertical divisions. See Figure 3-18
for the location of the adjustments.
hp
stopped
t-mote
listen
10.0
Vfdtv
10.0
V/div
.I.
.I
;
10.00 : 1 dc
I
.._._...................
(8
..--..........
-
-- -
........
.._.
I
-125.000 “s
125.000
“s
375.000
ns
50.0
ns/dtv
1
f
25.00 v
Figure 3-19. X + and X- Waveforms
15. Set the oscilloscope controls as follows:
Press
[WF~RM
MATH):
fl
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . on
display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . on
math . . . . . . . . . . . . . . . . . . . . . . . . . . . .
.channel
1
-
channel 4
sensitivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...25.0
V/div
16. Three waveforms should be displayed on the oscilloscope, as
shown in Figure 3-20. The lower composite waveform represents
Adjustments 3-51
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