Adjustment Procedures
P6248 1.7 GHz Differential Probe Service Manual
21
Offset (preliminary)
NOTE
. Do not attempt to adjust offset directly on an oscilloscope equipped with
TekProbe Interface. These oscilloscopes utilize a closed loop compensation
system for gain and offset, which will interfere with the manual adjustment of the
probe.
1.
Connect the probe as shown in Figure 10.
--
+
Digital multimeter
1103
CH 1
input
CH 1
output
Female BNC-to-male
banana adapter
50
Ω
precision
terminator
50
Ω
BNC cable
P6248
BNC-to-probe-tip adapter
DM pair for offset test
Figure 10: Setup for the offset adjustment
2.
Set the DMM to DC volts, 200 mV or 300 mV range,
average on, average 10 readings.
3.
Set the probe to
÷
1 attenuation.
4.
Adjust the
÷
1 offset adjustment for 0 mV
±
1 mV.
5.
Change the probe attenuation to
÷
10.
6.
Adjust the
÷
10 offset adjustment for 0 mV
±
1 mV.
7.
Keep the output cable set up for the next step.
Summary of Contents for P6248
Page 4: ......
Page 10: ...Service Safety Summary vi P6248 1 7 GHz Differential Probe Service Manual...
Page 12: ...Preface viii P6248 1 7 GHz Differential Probe Service Manual...
Page 38: ...Adjustment Procedures 26 P6248 1 7 GHz Differential Probe Service Manual...
Page 42: ...Options 30 P6248 1 7 GHz Differential Probe Service Manual...
Page 50: ...Replaceable Parts 38 P6248 1 7 GHz Differential Probe Service Manual...
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