Tektronix WFM700 Series, Service Manual

Page: 53 / 194

Performance Verification
WFM700 Series Waveform Monitors Service Manual
2- 21
22. Move the cable from the PIX B/Pb to the PIX R/Pr connector.
23. Repeat steps 17 through 21.
Pk - Pk
level
Ground reference
Black
level
Figure 2- 6: HD pix B/Pb and R/Pr video output level performance screen
Stop here for WFM7HD. The PIX Video Output Level procedure is now finished
for the WFM7HD Input Module. Continue with this check if testing a WFM7A
or WFM7M Input Module.
24. Connect the SD video generator to INPUT B using a 75
8
cable.
25. Press the INPUT button and select Input B .
26. Set the SD video generator for a 525-format 100% color bars signal.
27. Connect the PIX G/Y output to the 75
8
input of the test oscilloscope using
a 75
8
cable. Use a 75
8
-to-50
8
adapter on the input of the test oscillo-
scope if necessary.
28. Press the CONFIG button.
29.
Touch the
Video Inputs/Outputs
soft key, then
Next Menu
.
30. Touch the Output Active for SD soft key, then YPbPr .
31.
Press the
CONFIG
button twice to exit the menu.