Keysight Technologies InfiniVision 6000L Series, Service Manual

Page: 45 / 100

Testing Performance
2
6000L Series Oscilloscopes Service Guide 45
4 Set the power meter Cal Factor % to the appropriate value (500 MHz or
100 MHz) on the calibration chart on the power sensor. If necessary, do a linear
interpolation if a 500 MHz or 100 MHz factor is not included in the power
meter’s calibration chart.
5 Adjust the signal generator output for reading on the power meter of 625 μ W.
(500mV
pp
= 176.78mV rms,
Power = Vin
2
/50 Ω = 176.78 mV
2
/50 Ω = 625 μ W.)
6 Press the Trigger
Edge
key, then press the
Source
softkey to set the trigger
source to
External
.
7 Check for stable triggering and adjust the trigger level if necessary. Triggering
is indicated by the
Trig’d
indicator at the top of the display. When it is flashing,
the oscilloscope is not triggered. When it is not flashing, the oscilloscope is
triggered.
8 Record the results as Pass or Fail in the Performance Test Record (see
page 46 ).
If the test fails, see the “Troubleshooting” chapter. Then return here.