JVC 340 SC, 330, 370 SC service manual Intensity

Models: 340 SC 370 SC 330

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Intensity

Glossary

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..

Model 330, 340SC, and 370SC Service Manual

Page 158
Image 158
JVC 340 SC, 330, 370 SC service manual Intensity