Testing Analog Computer (It) Crts - Quantum Data 881 User Manual

Testing analog computer (IT) CRTs

Chapter 2 Testing Video Displays
52
This section describes how to test analog computer (IT) displays. 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 format and image selections. The interface
selection is different and is noted.
To set up the 882 to test an analog computer CRT:
1. Connect a standard VGA cable between the VGA connector on the 882 and the VGA
connector on the display under test.
2. Calibrate the 882 in accordance with the procedures described in
level" on page 87.
3. Determine the formats to test (see
4. Determine additional formats to test based on the resolution of the display. The VESA
formats are shown below:
Standard
VGA
SVGA
XGA
SXGA
UXGA
QXGA
QSXBA
5. 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 "Selecting image" on page 47 or Appendix B,
To activate the VGA interface on the output port:
1. Press the Interface key to access the list of interfaces. A listing of signal interfaces
appears on the 882's display as shown below.
VGA
*
HDMI-D
HDMI-H
"Setting Source list of
Quantum Data format name
DMT06xx
DMT08xx
DMT10xx
DMT12xx
DMT16xx
DMT20xx
DMT25xx
CVBS
S-VIDEO
SDI
"Calibrating signal
formats" on page 43).
"Image Reference."