Push in to apply power to the proc amp. In off
position no power is consumed and no video is passed to the output.
Built in dual meter displays black level and video level
bar graph readings--- (1) peak white video level on the right, and (2) peak
black video on the left. Upper number scale is for reading white level. Bottom
number scale is for reading black level. Normal video will extend from a
minimum 7.5 to a maximum 100. Check these readings to keep adjustments within
proper 7.5 to 100 video levels. Video at proper levels will remain consistently
viewable on different video monitors, television receivers and other equipment,
while video outside this range will cause problems with some
Push in for unity gain to bypass all controls and
set the video output essentially equal to the video input. Use when you want
unprocessed video. Also use to compare processed and unprocessed video by
toggling in and out of unity (or use the split screen for the same
Push in to view a split screen comparison. The
left side is processed video, the right side unprocessed ("unity")
Push in for monochrome (black & white) video
by removing color burst. In addition to giving you black and white images
when you want them, this mode is very useful for judging actual sharpness,
focus, depth of field, and separating color problems from image problems.
If a soft image gets suddenly sharp in monochrome, it points to a color problem.
Also should be used when dealing with original black and white video.
Push in to restore sync amplitude (the output sync
will always be 40 IRE as long as the input sync is greater than 30 IRE).
Degradation of sync can occur during original camera recording or during
dubbing of tapes and can accumulate over generations resulting in symptoms
such as picture tearing, shifting, jitter or roll. Use sync mode to restore
sync to standard (40 IRE) sync level.
Shifts the entire visible video signal either brighter
or darker in order to set the blacks at the desired level. The meter should
read 7.5 on scenes that contain a really dark object. If the black clip LED
lights, you should adjust clockwise to stop clipping.
Adjusts luminance gain (brightness) portion of
the picture. Use to set the brighter portions of the picture to the desired
level. Meter should read 80-100 on scenes containing whites. If the clip
LED lights, the level is excessive.
Adjusts the color saturation (also called the chroma
gain or chroma level). Set by eye with a good video monitor. Particularly
useful for increasing low color saturation common in low light level conditions,
and for decreasing effect of color bleeding and smear (by turning down
Adjusts the color hue (also called tint or phase).
Set by eye with a good video monitor.
Copyright ©2010 by Sign Video,