HP 54501A - Attenuator Compensation Ajustments

HP 54501A
ADJUSTMENTS
4-15
.
Attenuator Compensation
Adjustments
Equipment Required
:
Square Wave
Generator . . . . . . . . . . . .
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. . . . HP8116A
50 Ohm Termination
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . HP 101000
BNC Cable . . . . .
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. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . HP 10503A
Procedure :
1 .

Connect
Square Wave Generator to HP
54501A Channel 1 input, using the 50-ohm termina-
tion and BNC cable .
2 .

Set Square
Wave Generator for output of 100 Hz with
approximately 300 mVp-p amplitude .
3 .

AUTOSCALE
and then set channel 1 vertical
sensitivity to 50mV/div .
4 .

Adjust System Board
Assembly R315 for displayed signal with flat top
and baseline . Refer to
figure 4-4 for adjustment location
.
5 .

Connect Square
Wave Generator to HP 54501A Channel 4 .
AUTOSCALE .
6 .

AUTOSCALE and
set channel 4 vertical sensitivity to 50mV/div
.
7 .

Adjust System Board
Assembly R15 for flat top and baseline
on displayed signal .
8 .

Connect Square Wave
Generator to Channel 2 and increase output to
approximately 1 V
9 .

AUTOSCALE and
set channel 2 vertical sensitivity to 200
mV/div .
10 .

Adjust System
Board Assembly R215 for flat top and
baseline on displayed signal .
11 .

Connect Square
Wave Generator to Channel 3 .
12 .

AUTOSCALE
and set channel 3 vertical
sensitivity to 200 mV/div .
13 .

Adjust
System Board Assembly R115
for flat top and baseline on displayed
signal .
14 .

Connect Square Wave
Generator to Channel 1 . AUTOSCALE .
15 .

AUTOSCALE and set
channel 1 vertical sensitivity to 200 mV/div
.
16 .

Adjust
System Board
Assembly C305 for flat top and baseline on
displayed signal .
17 .

Connect
Square Wave Generator
output to Channel 2 .
18 .

AUTOSCALE
and set
channel 2 vertical sensitivity to 200 mV .div .
19 .

Adjust System
Board Assembly C202
for flat top and baseline on displayed
signal .
20 .

Connect
Square Wave
Generator to Channel 3 .
4-10
P-P .