Input B Trigger Sensitivity Test - Fluke 199B Service Manual

Fluke 19xB-19xC-2x5C
Service Manual

4.6.11 Input B Trigger Sensitivity Test

Proceed as follows to test the Input B trigger sensitivity:
1. Connect the test tool to the 5500A as shown in Figure 4-7.
2. Select the following test tool setup:
3. Using
4. Set the 5500A to source the leveled sine wave given in the first row of Table 4-10.
5. Adjust the 5500A output voltage until the displayed trace has the amplitude indicated
6. Verify that the signal is well triggered.
7. Continue through the test points.
8. When you are finished, set the 5500A to Standby.
4-20
Figure 4-7. 5500A Scope Output to Test Tool Input B
•
Reset the test tool
•
Press and use
•
Press and use
•
Using move the Input B trace zero to the center grid line.
•
Press and use
•
Using and
ranging, and lock the Input B sensitivity range on 2 V/div.
select the time base indicated under the first column of Table 4-10.
under the appropriate column of Table 4-10.
If it is not, press
Trigger Level adjustment. Adjust the trigger level and verify that the signal will be
triggered now. The trigger level is indicated by the trigger icon ( ).
to turn Input B on.
to turn Input A off.
to select Input B as trigger source.
change the sensitivity range to select manual sensitivity
, then using enable the up/down arrow keys for manual
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