Glossary

 

Lumen

A unit of measure of the flow, or rate of emission, of light.

 

An ordinary wax candle generates 13 lumens while a 100

 

watt bulb generates 1,200 lumens.

Luminance

Abbreviated as "Y." The portion of the signal that contains

 

the black and white information, which affects brightness.

Monochrome

Single color and refers to monitors that display only one color

 

along with back, such as white on black, black on white,

 

green on black and amber on black.

MTS

(Multi-Channel Television Sound) A stereo TV signal is

 

transmitted together with the regular TV signal. Allows

 

stereo audio for TV.

Multisync Monitor

A display monitor that adjusts automatically to the

 

synchronization frequency of the video display board that's

 

sending signals to it. Multisync monitors can adjust to a

 

range of frequencies, but not all of them.

Noise

An undesirable electrical interference of a signal.

NTSC

(National Television Standards Committee) The NTSC

 

governs the standard for television and video playback and

 

recording in the United States. The NTSC standard is 525

 

lines of resolution and is transmitted at 60 half frames

 

(interlaced) per second.

Optics Module

Contains the optics used to transmit light from the arc lamp to

 

the projection channels (blue, green and red).

Overscanning

Displaying less than the complete area of an image to a

 

viewer (i.e., scanning beyond the visible area). All TV sets

 

are overscanned at least slightly, so that viewers do not see

 

blanking.

PAL

(Phase Alternate Line) The 625-line, 50-field system used in

 

the UK, Western Europe, Scandinavia, Australia, South

 

Africa and other countries.

Pluge

Test pattern used to set B/W scale. Grid of four squares

 

within four squares.

Model 330, 340SC, and 370SC Service Manual

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Image 159
JVC 330, 370 SC, 340 SC service manual Mts