Keysight 8990B Service Manual page 36

1 Performance Verification and Adjustments
System specifications:
– 50 Ω ±2.5%
– 1 MΩ ±1%
Test procedure
1 Turn on the 8990B and 34410A.
2 Allow the system to warm up for approximately an hour.
3 Set up the digital multimeter to make a four-wire resistance measurement.
4 Assemble the two units of BNC to dual banana adapter and two units of BNC
5 Connect the male end of the BNC tee adapter to the video input channel 2 of
6 The test equipment setup is shown in
36
cable as follows.
– Connect one end of each of the BNC cables to the BNC to dual banana
adapters.
– Connect both the BNC to dual banana adapters to the four-wire resistance
connections on the multimeter.
– Connect the other end of each of the BNC cables to the BNC
tee adapter.
the 8990B.
Figure 1-8.
Keysight 8990B Service Guide