
3. Preliminary Display Adjustments (SN 3001A and Below)
OVERSHOOT
OVERSHOOl
Figure 3-2 1.
Rise and Fall Times and Overshoot Adjustment Waveform
19. Connect the oscilloscope channel 1 probe to AlA5El and the
channel 4 probe to
AlA5E2.
See Figure 3-18 for the location
of the test points. Connect the output of the pulse/function
generator to
52
(Y input) on the Display Adjustment PC board in
the
A3A2
slot.
20. The Y Deflection Amplifier is identical to the X Deflection
Amplifier. Repeat steps 12 through 18 for the Y Deflection
Amplifier using R7, R27, R28,
ClO,
and Cl1 respectively.
Pulse
Response
of
21. Disconnect the oscilloscope channel 4 probe from the spectrum
Control
Gate
Z
analyzer. Connect the oscilloscope channel 1 probe to
AlA2TP2,
Amplifler
to
BLANK
and connect the probe ground lead to chassis ground.
Input
22. On the oscilloscope, press
[RECALL)
(CLEAR)
to perform a soft reset.
23.
Press
(CHAN),
CHHNEL
1 on,
more
preset probe , and use the
front-panel knob to set the probe to
lO.OO:l.
Press more .
24. Set the oscilloscope controls as follows:
Press
m):
amplitude scale . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10.0
V/div
offset
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
..25.OOOOV
Press
(TIME]:
time scale . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
50.0 ns/div
delay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125.000 ns
Press
L‘TRIG]:
level
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.00000 v
connect dots . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
..on
Press
m).
25. Connect the output of the pulse/function generator to
53
(Z input)
on the Display Adjustment PC Board in the
A3A2
slot. Set the
board’s switch to the
down
position.
Adjustments 3-53
Commentaires sur ces manuels