Technical data

58 6000 Series Oscilloscopes Service Guide
2 Testing Performance
Then after converting the values from the power meter to
Vrms:
15 The result from step 14 should be between +3.0 dB and
-3.0 dB. Record the result in the Performance Test Record
(see page 70).
16 Move the power splitter from the channel 1 to the channel
2 input.
17 Turn off the current channel and turn on the next
channel using the channel keys.
18 Repeat steps 3 through 17 for the remaining channels,
setting the parameters of the channel being tested where
appropriate.
To verify horizontal ∆t accuracy
The following test is optional because horizontal ∆t accuracy
is a characteristic, not a specification.
This test verifies the horizontal ∆t accuracy. In this test, you
will use the oscilloscope to measure the output of a time
mark generator.
Test limits: ±0.0015% of reading ±0.1% of full scale ±20 ps
(same channel)
response(dB) = 20 log
10






mV 211.2mV/ 210.4
mV 185.3 / mV 161.6
= -1.16 dB
6000_series_service_guide.book Page 58 Friday, March 23, 2007 2:43 PM