Keysight Technologies InfiniVision 6000L Series, Service Manual

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32 6000L Series Oscilloscopes Service Guide
2
Testing Performance
7 When you are finished checking all of the voltage values, disconnect the
oscilloscope calibrator from the oscilloscope.
8 Repeat this procedure for the remaining channels to be tested.
Figure 4 Using a Blocking Capacitor to Reduce Noise
Use a Blocking Capacitor to Reduce Noise
On the more sensitive ranges, such as 2 mV/div and 5 mV/div, noise may be a factor. To eliminate the
noise, add a BNC Tee, blocking capacitor, and BNC shorting cap at the oscilloscope channel input to
shunt the noise to ground. See Figure 4 .
To oscilloscope input
BNC shorting
cap
Blocking
Capacitor