Technical data

Testing Performance 2
4000 X-Series Oscilloscopes Service Guide 29
1 Turn on the test equipment and the oscilloscope. Let
them warm up for 30 minutes before starting the test.
2 Set up the oscilloscope calibrator.
a Set the oscilloscope calibrator to provide a DC offset
voltage at the Channel 1 output.
b Use the multimeter to monitor the oscilloscope
calibrator DC output voltage.
3 Use the 8-by-2 test connector and the BNC cable
assembly to connect digital channels D0- D7 to one side of
the BNC Tee. Then connect the D0- D7 ground lead to the
ground side of the 8- by- 2 connector. See Figure 2.
Table 4 Equipment Required to Test Digital Channel Threshold
Accuracy
Equipment
Critical
Specifications Recommended Model/Part
Digital Multimeter 0.1 mV resolution,
0.005% accuracy
Agilent 34401A
Oscilloscope Calibrator DC offset voltage
6.3 V
Fluke 5820A
BNC-Banana Cable Agilent 11001-66001 or
Pomona 2BC-BNC-36
BNC Tee Agilent 1250-0781 or
Pomona 3285
50
Ω BNC Cable Agilent 10503A
BNC Test Connector,
8-by-2
User-built (See page 25)
Probe Cable Agilent N6450-60001
(16-channel) or Agilent
N6459-60001 (8-channel)