Keysight Technologies InfiniiVision 2000 Service Manual page 39

8 Wait until the measurement settles.
9 Press the Y2 softkey, then position the Y2 cursor to the center of the voltage
10 Disconnect the precision source from the oscilloscope.
11 Repeat this procedure to check the dual cursor accuracy with the remaining
12 Finally, repeat this procedure for the remaining channels to be tested.
Use a Blocking Capacitor to Reduce Noise
On the more sensitive ranges, such as 1 mV/div, 2 mV/div, and 5 mV/div, noise
may be a factor. To eliminate the noise, add a BNC Tee, blocking capacitor, and
shorting cap at the oscilloscope channel input to shunt the noise to ground. See
Figure
adapter, and cap. See
details.
Figure 6
2000/3000 X-Series Oscilloscopes Service Guide
trace using the Entry knob.
The ΔY value on the lower line of the display should be within the test limits of
Table 11 or Table 12
If a result is not within the test limits, go to the "Troubleshooting" chapter. Then
return here.
Volts/div setting values in
model).
6. If a BNC capacitor is not available, use an SMA blocking capacitor,
"Blocking capacitor
Using a Blocking Capacitor to Reduce Noise
(depending on the oscilloscope model).
Table 11 or Table 12
in the equipment list on
To oscilloscope input
Testing Performance
(depending on the oscilloscope
page 20
Blocking
Capacitor
2
for
BNC shorting
cap
39