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Audio output
WFM 1125 Option 0A/0B/0C/0D Service Manual
12. Observe the Bowtie display on the oscilloscope and confirm the skew is
within 3 ns (the marker on the display indicates 1 ns).
13. Change the oscilloscope zoom setting to off.
14. On the TSG1001 front panel press the COLOR BARS button to set the
COLOR BAR to 100 %.
15. Change the BNC cable from ANALOG OUT P
OUT P
connector.
r
16. Change the oscilloscope settings to:
Waveform:
. . . . . . . . . . . . . . .
Vertical scale:
. . . . . . . . . . . . .
Vertical offset:
17. Repeat steps from 5 to 12.
This test confirms the amplitude, rise time and fall time of the AUDIO output.
This test can be skipped in case of Option 0B or 296M format mode of Option
0C.
The following equipment is required.
Equipment Required
Connections. Refer to Figure 4–4 for connections..
Using the parallel signal cables supplied with the PSC1125, connect between the
G/Y on the TSG1001 and Y on the PSC1125, and between the B/Pb on the
TSG1001 and P
/P
on the PSC1125.
B
R
Using the 75 W BNC cable, connect the OUT1 connector on the PSC1125 rear
panel to the CH A connector on the waveform monitor rear panel.
Connect AUDIO CHA connector on the waveform monitor rear panel to the
oscilloscope CH1 input using the 75 W BNC cable and the BNC T connector.
MATH1 to off and CH2 to on
10 mV/div
. . . . . . . . . . . .
–350 mV
HDTV Signal Generator (TSG1001 and PSC1125)
Oscilloscope
Digital Audio Monitor
Two parallel signal cables
Three 75 W BNC cables
BNC T connector
Two 75 W terminators
Performance Verification
connector to ANALOG
b
4-15
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