Tektronix P6248, Руководство по обслуживанию

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Performance Verification
10
P6248 1.7 GHz Differential Probe Service Manual
7. Verify that the attenuation is in the range of 9.5 to 10.5.
8. Remove the Y-lead adapter from the probe and reverse the connection (black
to +, red to --).
9. Measure and record the output voltage as V
out
.
10.
Calculate attenuation as V
in
÷
(-- V
out
).
11. Verify that the attenuation is in the range of 9.5 to 10.5.
12. Set the differential mode source to 0.85 V
±
10 mV. Record the actual voltage
as V
in
.
13.
Make sure that the common mode source is still set to 7.0 V
±
50 mV.
14. Set the probe attenuation to
÷
1.
15. Measure and record the output voltage as V
out
.
16. Calculate attenuation as V
in
÷
(-- V
out
).
17. Verify that the attenuation is in the range of 0.95 to 1.05.
18. Remove the Y-lead adapter from the probe and reverse the connection again
(red to +, black to --).
19. Measure and record the output voltage as V
out
.
20. Calculate the attenuation as V
in
÷
V
out
.
21. Verify that the attenuation is in the range of 0.95 to 1.05.
22.
Remove all connections.