Frequently Asked Questions
Which one is better: 480i (480 lines interlaced) or
480p (480 lines progressive)?
Most people cannot tell the difference between 480i and 480p.It
depends on whether the projector or the source has the better
deinterlacer chip. When you send 480i to the projector, the projector’s
deinterlacer converts the signal to a progressive signal. When you
send 480p, the video source’s deinterlacer converts the signal. We
recommend sending 480i to the projector.
Which cable provides me with the best video quality?
Connector Type Quality Signal Type
Composite Good
Analog, standard
definition
S-video Better
Analog, standard
definition
Component Best
Analog, 480i, 480p,
720p, 1080i
DVI
(digital video interface)
Premium
Digital, 480p, 720p,
1080i, 1080p
HDMI
(high definition multimedia
interface)
Premium
Digital, 480p, 720p,
1080i, 1080p, up to 8
channel audio
What does Overscan do?
Some video devices cause noise around the edges of an image.
Overscan crops approximately 3% of the image to hide this video
noise. The disadvantage of this feature is that you lose part of the
image. Most InFocus projectors include this option in the menu when a
standard definition or interlaced signal is projected. You can turn
Overscan off through the projector menu or, with some projectors, with
the remote control.
Where is the luma detail, chroma detail, CCS and noise reduction
settings in the advanced menu? My advanced menu is not
matching what I see in the user guide.
These range of advanced options varies, depending on which video
source is active. The ones listed above are available only when
composite, s-video or 480i component signals are projected. If you are
sending digital, 480p, 720p or 1080i signals, these options are not
available.
At what cable length do I lose video quality?
The answer depends on the quality of cabling you use. Some cables
begin to lose noticeable quality beyond 10 feet. Higher quality cables
can maintain a clean signal beyond 25 feet. To guarantee the best
video quality, we recommend using heavy duty shielded cabling (for
example Monster Cable or Belkin). Use as short a cable as your setup
allows.
When is the projector’s deinterlacer used?
The projector’s deinterlacer is used when you send an interlaced signal
to the projector. If you send composite, S-video or 480i component
video to the projector, the deinterlacer is used. If you send progressive,
the source device’s deinterlacer would be used.
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