Video and General Performance Verification
1. Press FACTORY o
n the waveform rasterizer.
2. Connect the RCA connector from the custom cable to the output of the
Timecode gene
rator. Connect the 15-pin connector on the custom cable to the
REMOTE connector on the rear of the waveform rasterizer.
3. Unplug the L
TC generator so it is turned off. It needs to stay connected to the
DUT to terminate the input.
4. Connect the
10 kHz s quare wave source to the BNC on the remote cable. Set
the square wave amplitude to 5 V. If necessary, use an oscilloscope to verify
that the amplitude is accurate.
5. Press OTHER on the waveform rasterizer front panel to display the LTC
waveform.
6. Press FULL t o change the waveform rasterizer display to full-screen mode.
7. Press VA
R to activate the variable gain function.
8. Adjust the gain and vertical position until the displayed waveform is five
divisi
ons high.
The variable gain readout indicates the error in the input circuit. A gain of
1.03 i
ndicates the input gain error is –3%. Record the gain error in the test record.
HD Cable Meter (Option HD
and E YE or PHY)
This test uses a short (1 to 2 meters) length of Belden 8281 cable and a long
(100 meters) length of Belden 8281 cable to check the Cable Meter. A cable clone
may
be used instead of the long cable.
Waveform Rasterizers Specifications and Performance Verification 8 3
To Next Page
Loading...
Need help?
General
