Input A Ac Voltage Accuracy (Hf) And Bandwidth Test - Fluke ScopeMeter 190 II Series Service Manual

Input A AC Voltage Accuracy (HF) and Bandwidth Test

Proceed as follows to test the Input A high frequency automatic scope ac voltage
measurement accuracy and the bandwidth:
1. Connect the Test Tool to the 5502A as shown in Figure 4-6.
2. Select the Test Tool setup:
a) Recall the setup (see Standard Test Tool Setup). Press
(
RECALL) and
press
ENTER
b) Press
SCOPE
(
READINGS
MANUAL
c) Press AUTO
mV
d) Use
RANGE
sensitivity ranging, and lock the Input A sensitivity range on 500 mV/div.
in upper right LCD edge becomes
AUTO
e) Use to move the Input A trace zero to the center grid line.
MOVE
3. Set the 5502A to source a sine wave and to the first test point in Table 4-10.
4. Observe the Input A reading and check that it is within the range shown
under the appropriate column.
5. Continue through the test points.
6. When you are finished, set the 5502A to Standby.
Table 4-10. HF AC Voltage Verification Points
UUT 5502A SC... MODE levsine
Model
Voltage
All 2.545 Vpp
All 2.545 Vpp
190-062 2.545 Vpp
190-104, -102 2.545 Vpp
190-204, -202 2.545 Vpp
190-502; -504 2.545 Vpp
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select , press
SETUP
to recall the setup.
F2
, then press (-
) .
on A | V ac
to select autoranging (
AUTO
RANGE
and to change the sensitivity range to select manual
V
Frequency
1 MHz
25 MHz
60 MHz
100 MHz
200 MHz
500 MHz
Performance Verification
Scope Input A, B, C, D Tests
SAVE
,
ENTER , select the setup name, and
...) and select
READING
in upper right LCD edge).
.
½ AUTO
UUT
Reading A
835 mV to 965 mV
790 mV to 1.010 V
>630 mV
>630 mV
>630 mV
>630 mV
4
F2
F1
4-23