JVC 330, 370 SC, 340 SC service manual Cold Mirror

Glossary

Cold Mirror	Mirror that absorbs infrared light so that its reflection contains
	only "cold' light that does not transmit appreciable heat. As a
	result of this absorption of infrared heat radiation, "cold"
	mirrors get quite hot.

Composite Video	Means of transmission sending the complete video signal
	consisting of chrominance, luminance and the sync signals. It
	is the NTSC standard.
Contrast	The ratio between the dark and light areas of a television
	picture, setting white at 100%. Used with Brightness
	adjustment for best picture display.
Convergence	The process of controlling CRT beam deflection to keep the
	R, G and B beams properly aligned when scanning the raster.
	Misconvergence shows up as color fringing on picture edges.
	Convergence adjustment compensates for the physical
	separation of the R, G and B tubes by aligning their output at
	a fixed distance from the projector. Convergence adjustments
	include X,Y-Axis Convergence and Black and White
	Uniformity.
CRT	The vacuum tube used as a display screen in video terminals
(Cathode Ray Tube)	or television sets. Commonly called the picture tube.
Export Channel	Exports setup data from projector to computer. Useful when
	servicing. See Import Channel Data and refer to Appendix 1
	for more details.
Field	One half of a complete video frame. Odd lines in one field
	and even lines in another make up one frame.
Frame	One complete TV picture or screen of information. It is
	composed of two fields and has a total of 525 scanning lines
	in NTSC transmission.
Ganged	When R and B are ganged to Green, green is set first, then R
	and B are set to match G. Thereafter, if R or B are visible on
	screen, any adjustments to G will affect all three colors.
Graphics Adapter	A circuit card in a computer that has the function of
	converting signals used in a computer into signals that a
	monitor can use to display a video picture.

Model 330, 340SC, and 370SC Service Manual