To Test The Input Resistance (Oscilloscope); Set Up The Equipment - HP 1660 Series Service Manual

To test the input resistance (oscilloscope)

Testing the input resistance verifies the performance of the following specification:
•
Input resistance
This test checks the input resistance at the 50 Ω and 1 MΩ settings in the Coupling
field.
Equipment Required
Equipment Critical Specifications
Digital Multimeter Measure resistance (4-wire) better than 0.25%
accuracy
Cables (2) BNC (m)(m) 48-inch
Adapter BNC Tee (m)(f)(f)
Adapters (2) BNC (f) to Dual Banana Plug

Set up the equipment

Turn on the equipment required and the logic analyzer. Let them warm up for
1 1
30 minutes if you have not already done so.
Set up the multimeter to make a 4-wire resistance measurement.
2 2
3–68
Recommended
Model/Part
HP 3458A
HP 10503A
HP 1250-0781
HP 1251-2277