HP 54501A - Pulse Response

21 .

AUTOSCALE and set
channel 3 vertical sensitivity to 200 mV/div .
22 .

Adjust System Board
Assembly C102 for flat top and baseline on displayed
signal .
23 .

Connect Square Wave Generator to
Channel 4 .
24 .

AUTOSCALE
and set channel
4
vertical
sensitivity
to
200 mV/div .
25 .

Adjust
System Board Assembly C5
for flat top and baseline on displayed signal .
26 .

Change Square Wave
Generator output for approximately 5 Vp-p output
.
27 .

AUTOSCALE and set
channel 4 vertical sensitivity to 2 V/div
.
28 .

Adjust
System Board Assembly C2
for flat
top
and baseline on displayed signal .
29 .

Connect Square
Wave Generator output to Channel 1 . AUTOSCALE .
30 .

AUTOSCALE
and set channel 1 vertical sensitivity to 2 V/div .
31 .

Adjust System
Board Assembly C302 for flat top and
baseline on displayed signal .
4-16 . Pulse
Response Adjustments
Equipment
Required :
Pulse Generator . . . . . . . . . . . . . .
.
.
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Tektronix 284
50
Ohm Termination .
.
.
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. .
.
. . . . . . . . . . . HP 101000
Procedure :
4 .

Press TIMEBASE
and set for 5 nsec/div .
HP
54501A
ADJUSTMENTS
1 .

Connect Pulse
Generator to HP 54501A Channel 1 input
using
50-ohm
termination .
2 .

Set
Pulse Generator for output
amplitude
of
200 mV .
3 . AUTOSCALE .
5 .

Adjust System
BoardAssembly C337 and R391 for a leading edge
overshoot of not more
than 4% .
6 .

Repeat same procedure
on Channels 2, 3, and 4 adjusting System
Board Assembly C237 and
R291, C137 and
R191, and C37 and R91 respectively .