Glossary Of Terms - JVC 330 Service Manual

Glossary of Terms

Adjust Flat Fld
Amorphous
Arc Lamp
Aspect Ratio
Bandwidth
Blanking
Brightness
Contrast/Bright
Channel List
Copy Channel
Chrominance
Model 330, 340SC, and 370SC Service Manual
Flat field test pattern used for shading purposes,
(adjusts in 7º increments).
Without definite form; not crystallized.
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).
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.
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.
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.
Overall or average intensity of illumination of a video display,
setting black at 0%. Used with Contrast adjustment for best
picture display.
Test pattern used as reference for brightness and contrast
settings.
Displays status of all active channels.
Projector function used to copy geometric and image
adjustment data from one channel to any or all of the other 29
input channels
Abbreviated as "C." Color information signal or signals.
Glossary