Testing analog composite video sdtv (ce) crts – Quantum Data 881 User Manual
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Chapter 2 Testing Video Displays
Testing analog composite video SDTV (CE) CRTs
This section describes how to test CRT composite televisions with analog composite video
inputs. The display responses shown as examples in the procedures use the 882C.
However you can also test analog composite with the 882D using the same interface,
format and image selections.
To set up the generator to test analog composite video SDTV:
1. Connect a standard coax cable between the CVBS connector on the generator and the
display under test.
Or, connect an S-video cable between the S-VIDEO connector on the generator and
the S-Video input on the display under test.
2. Determine which composite television standard you need, such as NTSC or PAL, and
then select the formats compatible with the standard. Typically, you would test all the
formats in the family of formats for a standard.
3. Determine the images to test. For analog CRTs you typically want to select images to
test for geometry, focusing, photometry, resolution, cross talk, EMI, and regulation
characteristics. For more details on what images test these specific display attributes,
see “
To activate the CVBS or S-Video interface on the output port:
1. Press the
Interface key. A listing of signal interfaces appears on the generator’s display
as shown below.
2. Choose either the
CVBS or S-VIDEO item by pressing the adjacent soft key. The
interface is activated and the port outputs the currently selected image and format. An
asterisk is shown beside the selected interface
CVBS or S-VIDEO.
Alternatively, to activate the interface through the command line interface, enter the
following commands:
6
// Selects the CVBS interface
or
5
// Selects the S-VIDEO interface
// Applies the interface setting to the generator
To verify the test set-up:
1. Press the
Source key to access the list of formats.
VGA
HDMI-D
CVBS
S-VIDEO
SDI
*
HDMI-H