setting appears identical to the Adapt Gph mode; in PAL systems,
there is a noticeable difference between the two.
Adapt Gph –
This is an adaptive combination of Notch and Comb
modes (see below) that has a low noise threshold. Use this for video
that comes from computer graphics, character generators, or other
digital sources that are noise free. In NTSC systems, the effect of this
setting appears identical to the Adapt Gph mode; in PAL systems,
there is a noticeable difference between the two.
Notch –
This is a simple bandpass filter that reduces or eliminates
cross-color effects (dot crawl) on horizontal edges in the image.
However, vertical edges and luminance frequencies close to that of
color subcarrier produce color fringing. This setting is most useful
with images that have no vertical edges (i.e. horizontal detail).
Comb –
This is a comb filter that reduces or eliminates color fringing
on vertical edges and luminance frequencies close to that of color
subcarrier in the image. However, horizontal edges in the image
produce cross-color effects (dot crawl). This setting is most useful
with images that have no horizontal edges (i.e. vertical detail).
Use the
Hue
pushknob to adjust the chroma phase of the input
composite video; this control has a range of +/
–
180 degrees of
subcarrier. Use the
Sat
pushknob to adjust the chroma level of the input
composite video; this control has a range of
–
50 to +150 percent of
nominal saturation.
Proc Adjust (Gain/Pedstl)
Press this softkey to access controls for adjusting levels for the decoded
components of the composite video.
Use
Y Gain
to adjust the level of the luminance component; use
U Gain
to adjust the level of the B-Y component; and use
V Gain
to adjust the
level of the R-Y component. The range of all three is
–
50 to +150 percent
of nominal. Use
Pedestal
to adjust the black offset of the Y component.
The default setting of 0.00 assumes that the black level of the incoming
composite video is correct for the current line standard (7.5 IRE or 54mV
in NTSC, or 0mV in PAL). For NTSC signals without 7.5 IRE setup, such
as in Japan, the default setting is incorrect and should be adjusted for
proper black level. The range of this control is +/
–
10 percent.
NOTE: These pushknob adjustments should not replace
output level adjustments at the source. They are intended
only to compensate for minor non-unity gains in a video
system.
8150 Technical Guide
Engineering Menu
9100-0212-04 - May 2000
Engineering Setup
5-11
Summary of Contents for ASWR8150
Page 12: ...Table of Contents 8150 Technical Guide X Contents 9100 0212 04 May 2000...
Page 39: ......
Page 80: ...Control Panel Connector Detail 8150 Technical Guide 2 40 Installation 9100 0212 04 May 2000...
Page 109: ...Option Installation 8150 Technical Guide 3 30 Option Installation 9100 0212 04 May 2000...
Page 236: ...8150 Partial Parts List 8150 Technical Guide A 6 Appendix 9100 0212 04 May 2000...
