Glossary
Model 330, 340SC, and 370SC Service Manual
Intensity
Concentration of information or what would be seen if a black
and white version of the image is displayed.
Interlacing
The technique that refreshes a display screen by alternately
displaying all the odd lines (field one) and then all the even
lines (field two) of one frame.
I/R Executive Remote
Used to control the Series 300 Projector during presentations.
Limited use compared to the technician remotes; cannot
permanently change any projector setup values.
I/R Technician Remote
Remote control used during Series 300 setup and adjustment.
Alternative to optional terminal and tethered technician
remote.
I/R Windows
The Series 300 Projector has two I/R windows, one in front,
one in back. These windows receive projector control signals
from the I/R remotes.
ISO 9001
Standard of Quality. Hughes-JVC received ISO
certification May 15, 1997.
Keystone Adjustment
Corrects lines nearest to the screen edge to make them straight
and parallel to the center line of the test pattern or square to
the screen edge. The keystone adjustment is performed on
green only and affects all RGB.
Keystone Image
Distortion resulting from having the projector improperly
placed vertically with respect to the screen.
Lamp Assembly
Behind the optics assembly, the arc lamp and one "cold"
mirror are mounted in an extension chamber.
Line Crawl
Tendency of the eyes to follow the sequentially flashing
scanned lines of interlaced scanning up or down the screen in
the same way that the eyes follow the sequentially flashing
light bulbs on a movie theatre marquee. Line crawl tends to
reduce vertical resolution.
Linearity Adjustment
Corrects for improper horizontal grid spacing on an image.
With distorted linearity, lines in the grid are spaced closer
together on one side of the image and farther apart on the
other. The linearity adjustment is performed on green only
and affects all RGB..
