Fluke 225C Service Manual - Page 42

Fluke 19xB-19xC-2x5C Service Manual • Using and change the sensitivity range to select manual sensitivity ranging, and lock the Input A sensitivity range on 2 V/div. 3. Using select the time base indicated under the second column of Table 4-8. 4. Set the 5500A to source the leveled sine wave for the appropriate test tool model. 5. Adjust the 5500A output voltage until the displayed trace has the trigger amplitude indicated under the last column of Table 4-8. 6. Verify that the signal is well triggered. If it is not, press , then using enable the up/down arrow keys for manual 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 ( ). 7. Continue through the test points. 8. When you are finished, set the 5500A to Standby. Table 4-8. Input A Trigger Sensitivity Test Points UUT Model ALL 192B-C 196B-C, 215C 199B-C, 225C UUT Time base 200 ns/div 10 ns/div 10 ns/div 10 ns/div 10 ns/div 10 ns/div 10 ns/div 5500A SC... MODE levsin Initial Input Voltage Frequency 100 mV pp 5 MHz 400 mV pp 60 MHz 800 mV pp 100 MHz 400 mV pp 800 mV pp 100 MHz 150 MHz 400 mV pp 200 MHz 800 mV pp 250 MHz UUT Trigger Amplitude 0.5 div 1 div 2 div 1 div 2 div 1 div 2 div 4-18