To Adjust The Low-Frequency Compensation - HP 54645A User's And Service Manual

To adjust the low-frequency compensation

In this procedure, you adjust the low-frequency compensation adjustment for
each channel.
Table 7-14 Equipment Required
Equipment
Square wave
generator
Feedthrough
Cable
1
Using the
generator to channel 1. Use the 50- feedthrough at the oscilloscope
input.
Channel 1 is labeled "1" on HP 54645A and "A1" on HP 54645D.
Adjust the generator for about 30 kHz at about 3 V
2
Press
3
Set channel 1 to 500 mV/div.
4
You must perform this adjustment on the 500-mV range.
Channel 1 is labeled "1" on HP 54645A and "A1" on HP 54645D.
Adjust the output of the generator until you obtain about 5 to 6
5
divisions of vertical deflection.
Critical specifications
30 kHz at about 3 V
50 , BNC (m) and (f)
BNC
cable and 50- feedthrough, connect the square wave
BNC
.
Autoscale
Testing, Adjusting, and Troubleshooting
To adjust the low-frequency compensation
Recommended
Model/Part
HP 8112A
p-p
HP 11048C
HP 10503A
.
p-p
7-35