P6106A Passive Probe
P6106A Instruction Manual
7
NOTE
. We strongly recommend that you use the optional probe tip-to-BNC
adapter (Tektronix part number 013-0084-04) to connect your probe to the
signal source.
1. Remove the covers from the probe compensation box by gently prying them
off with a fingernail or small screwdriver.
2. Connect the probe to the signal source and display a 1 MHz test signal on
your oscilloscope. Adjust your oscilloscope to 5 ns/division. The display
should be similar to that shown in Figure 4(a).
(a) Area Of Waveform Affected By Trimmers
(b) Location of Trimmers
LF
R2
R3
R5
C3
R3
R5
&
C3
R2
Figure 4: Adjusting High-Frequency Compensation
3. Adjust R2 to flatten the first 40 ns of the waveform.
4. Adjust R3 to flatten the first 20 ns of the waveform. You may need to
alternately adjust R2 and R3 for an optimal waveform.
5. Adjust R5 clockwise to flatten the first 5 ns of the waveform.
6. Adjust C3 for as square a leading edge as possible. (The effect of C3 is
easier to see at 2 ns/division.)