Martin-Marietta Military Ruggedized XGA CRT

High resolution ruggedized precision graphics monitor made for U.S. military missile system.
Horizontal scan frequency: 64KHz
Video input: High-bandwidth analog RGB SonG/ RGB+composite sync
Power input: 120VAC 60Hz
Screen size: 19"

multiburst off-axis photo in dark room	crosshatch off-axis photo in dark room	center dot hatch off-axis photo in dark room	red field (color purity) off-axis photo in dark room	EIA bars off-axis photo in dark room. The setup bars are visible but the camera could not pick them up.	EIA bars off-axis photo in dark room
video test setup. Since the green illuminated power button won't stay in, a small piece of copper was bolted in place temporarily to hold it "ON"	RGB and sync connectors can be accessed with BNC connectors. Power connection is EIA type. Fan power is accessible also.	120VAC Power is available on the terminal block between the fans	Unit is completely enclosed	Front view: Unit in cabinet.	Rear panel shows additional honeycomb filter EMI shielding on fans and in the grating.
Unit is securely mounted in rugged case	rear view	one of the louvers on the rear vent is bent	nameplate on rear of monitor chassis	external power connector	external RGB video connector
label on top of case	nameplate on top of case	with flash	without flash	where's it been?	handles and pressure valve

The unit was cleaned up and tested. Since a computer with XGA was not readily available, a Sony DSC-1024 was used to convert (line quadrupling) NTSC video to the proper 64KHz scan rate. Several test patterns were displayed. The RGB bias and gain were adjusted. Focus was also touched up. The image rendering quality is not so apparent in pictures of the monitor but it looks very good to the eye. One repair is remaining and was not done: The power switch works, but won't stay in. Therefore a metal plate was temporarily attached to a screw on the front panel to hold the switch button in the ON position.

The unit is shielded against EMI and rated for TEMPEST. The air for the forced air cooling is passed through aluminum honeycomb structures which prevent RF from entering or exiting. The power and video connectors are heavily shielded and a large ground screw on the back provides additional protection.

The monitor itself is ruggedized and enclosed in an O-ringed airtight case with an integral pressure equalization valve. It is suitable for the harshest environments. I have not figured out what to do with it, maybe a portable HDTV monitor using the DSC1024 as an upconverter?