Input D Ac Voltage Accuracy (Hf) & Bandwidth Test - Fluke 190-104 Service Manual

190-104 10 ns/div
10 ns/div
190-204 10 ns/div
10 ns/div
4.6.16 Input D AC Voltage Accuracy (HF) & Bandwidth Test
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 5500A as for the previous test (see Figure 4-10).
2. Select the following Test Tool setup:
•
Recall the created setup (e.g. SETUP 1, see section 4.4.3): press
RECALL
•
Press
•
Press
•
Using
ranging, and lock the Input D sensitivity range on 500 mV/div.
3. Set the 5500A to source a sine wave, to the first test point in Table 4-15.
4. Observe the Input D reading and check to see if it is within the range shown under
the appropriate column of table 4-15.
5. Continue through the test points.
6. When you are finished, set the 5500A to Standby.
UUT 5500A SC... MODE levsin
Model Voltage
all 2.545 Vpp
all 2.545 Vpp
190-104 2.545 Vpp
190-204 2.545 Vpp
400 mV pp
800 mV pp
400 mV pp
800 mV pp
, select
SCREEN+SETUP 1
F3
, then press
SCOPE
MANUAL
AUTO to select autoranging (
mV
RANGE
and change the sensitivity range to select manual sensitivity
RANGE V
Table 4-15. HF AC Voltage Verification Points
Frequency
1 MHz
25 MHz
100 MHz
200 MHz
4.6 Scope Input A, B, C, D Tests
100 MHz
150 MHz
200 MHz
250 MHz
, press ENTER to recall the setup .
, and select
READING 2
in upper right LCD edge)
AUTO
Reading D
835 mV to 965 mV
790 mV to 1.010 V
>630 mV
>630 mV
Performance Verification
1 div
2 div
1 div
2 div
SAVE
F2
,
.
on D | V ac
UUT
4
4-27