JVC 340 SC, 330, 370 SC service manual Glossary of Terms

Glossary

Glossary of Terms

Adjust Flat Fld	Flat field test pattern used for shading purposes,
	(adjusts in 7º increments).
Amorphous	Without definite form; not crystallized.
Arc Lamp	The xenon arc lamp in the Series 300 series projectors.
	Produces dangerously intensive light with hazardous levels of
	ultraviolet and infrared radiation. It operates at high
	temperatures (180ºC, maximum 300º C, or over 500º F).
Aspect Ratio	The ratio of the picture width to picture height. The standard
	U.S. television aspect ratio is four units wide to three units
	high (1:1.33). High Definition Television (HDTV) is 16:9.
Bandwidth	The transmission or reception capacity of a computer or
	communications channel measured in bits per second in
	digital and in Hertz in communications. Bandwidth is the
	difference between the lowest and highest frequencies
	transmitted or received. Wider bandwidth provides more
	information or picture detail capability.
Blanking	Image adjustment used to mask out unwanted anomalies on
	the picture edges. Blanking can be adjusted inward from 0%
	on the left edge and top, and from 100% on the right edge and
	bottom.
Brightness	Overall or average intensity of illumination of a video display,
	setting black at 0%. Used with Contrast adjustment for best
	picture display.
Contrast/Bright	Test pattern used as reference for brightness and contrast
	settings.
Channel List	Displays status of all active channels.
Copy Channel	Projector function used to copy geometric and image
	adjustment data from one channel to any or all of the other 29
	input channels
Chrominance	Abbreviated as "C." Color information signal or signals.

Model 330, 340SC, and 370SC Service Manual