Runco VIDEOXTREME VX-8D - Manual (Page 84)

Operation
68 Runco VX-8d Installation/Operation Manual
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• CUE (Chroma Upsampling Error) Correction: Some DVD players use MPEG
decoders that do not correctly “upsample” the 4:2:0 format chroma information on the
DVD to the 4:2:2 or 4:4:4 format required by the video encoder of the display device.
This so-called “chroma bug” sometimes causes streaky or spiky horizontal lines
running through the chroma channel. It is most noticeable in static, interlaced scenes
and on diagonal edges (especially red ones). Set CUE to On to correct this issue.
Sync Threshold: Select Sync Threshold to adjust the threshold at which negative pulses
on the component video green/luma channel are interpreted to be sync pulses.
Sync Threshold adjustment is occasionally necessary when a DVD player or HDTV source
signal drops “below black” (for example, during scenes with explosions or when subtitles
are present) and causes the projector to temporarily lose sync. If the sync level from the
source is persistently too low, the display device won’t sync with the source at all.
The range is from 0 (approximately 60 millivolts (mV)) to 15 (approximately 256 mV).
HDMI EDID Extension: Extended display identification data (EDID) is a data structure
provided by a display device to describe its capabilities to a graphics card. It is what
enables a modern personal computer to know what kind of monitor is connected.
Some modern display devices provide more information via EDID than others, in the form
of “extensions.” Some computer graphics cards do recognize or properly interpret this
extended EDID information.
Select HDMI EDID Extension from the Service menu to specify whether or not the EDID
extensions from the display device are passed through to the sources connected to the
HDMI 1 or HDMI 2 inputs. By default, the extensions are on. Change these settings only if
HDMI EDID incompatibility issues arise.