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

Fluke 190-062, -102, -104, -202, -204, -502, -504
Service Manual
12. When you are finished, set the 5502A to Standby.
UUT
Model
ALL
190-104
190-204
190-504

Input D AC Voltage Accuracy (HF) and Bandwidth Test

The test steps for channel C are only for the models 190-104,
190-204, and 190-504.
Proceed as follows to test the Input D high frequency automatic scope ac voltage
measurement accuracy and the bandwidth:
1. Connect the Test Tool to the 5502A as shown in Figure 4-10.
2. Recall the setup (see Standard Test Tool Setup) to select the Test Tool
setup.
3. Press
setup name, and press
4. Press
| V ac
5. Press
6. Use
sensitivity ranging and lock the Input D sensitivity range on 500 mV/div.
7. Use
8. Press
9. Set the 5502A to source a sine wave and to the first test point in Table 4-16.
10. Observe the Input D reading and check that it is within the range shown
under the appropriate column of Table 4-16.
11. Continue through the test points.
12. When you are finished, set the 5502A to Standby.
4-30
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Table 4-15. Input D Trigger Sensitivity Test Points
UUT
Time base
Initial Input Voltage
200 ns/div 100 mV pp
10 ns/div 400 mV pp
10 ns/div 800 mV pp
10 ns/div 400 mV pp
10 ns/div 800 mV pp
2 ns/div 400 mV pp
2 ns/div 800 mV pp
SAVE
F2
, (
RECALL) and
ENTER
F2
, then press
SCOPE
.
MANUAL
to select autoranging (
AUTO
mV
RANGE
and to change the sensitivity range to select manual
RANGE V
to move the Input D trace zero to the center grid line.
MOVE
F1
TRIGGER and use
5500A SC...MODE levsin
Frequency
5 MHz
100 MHz
150 MHz
200 MHz
250 MHz
500 MHz
600 MHz
Note
select , press
SETUP
to recall the setup.
( , and select
READING...)
in upper right LCD edge).
AUTO
to select Input D as trigger source.
UUT
Trigger Amplitude
0.5 div
1 div
2 div
1 div
2 div
1 div
2 div
, select the
ENTER
READINGS 4 on D