Tektronix WFM700 Series, Service Manual

Page: 61 / 194

Performance Verification
WFM700 Series Waveform Monitors Service Manual
2- 29
This test checks for error-free operation with 0 to 30 dB signal loss.
Performance Requirement.
This test verifies performance characteristics and is
listed in the test record.
1. Set the HD video generator for a 1080i 59.94 100% color bars signal.
2. Connect 90 meters of 75
8
cable from the HD video generator to INPUT A .
NOTE
. You can substitute the 90 meters of cable with an HD cable simulator set
for 90 meters.
3.
Press the
INPUT
button and select
Input A
.
4. Press the STATUS button.
5. Touch the Display soft key.
6. Touch the Session soft key and then touch the Done soft key.
7. Touch the Video Session soft key.
8. CHECK that no Embedded CRC Y or C errors messages occur in an interval
of 10 seconds.
9. Disconnect the test setup.
Stop here for WFM7HD.
The Cable Loss procedure is now finished for the
WFM7HD Input Module. Continue with this check if testing a WFM7A or
WFM7M Input Module.
10.
Set the SD video generator for a 525-format 75% color bars signal.
11. Connect 325 meters of 75
8
cable from the SD video generator to
INPUT B .
NOTE
. You can substitute the 325 meters of cable with an SD cable simulator set
for 325 meters.
12. Press the INPUT button and select Input B .
13.
Press the
STATUS
button.
14. Touch the Video Session soft key.
15.
CHECK that no Embedded CRC Y or C errors messages occur in an interval
of 10 seconds.
16. Disconnect the test setup.
Cable Loss
Accommodation