Another high quality connection that is only for running
picture. This connection separates luminance and chrominance
to maintain a high quality picture. Will also drive long runs
of cable (10M) provided the cable used is high quality and
- Labelled as: Either Y/C, S-Video, S-VHS
or AV1/2/3 (need to check via set-up menu).
- Almost all players have s-video output.
Connect either directly to a TV or to an AV receiver that
can switch s-video.
S-VHS: Potential Perfection
S-VHS interconnect differs from composite in that it carries the
brightness (luminance, or Y) and colour (chrominance, or C)
signals on separate lines within the same interconnect.
Every TV has a Y/C separator built in, but using
the S-VHS connection bypasses the TV's Y/C separator. You
should use the S-VHS connection if your source device (such
as a VCR or DVD player) has a better Y/C separator than your
How do you tell which component - the TV or the
source device - has a better Y/C separator? To start with,
assume that any device that creates separate Y and C signals
from the start has good Y/C separation. With these devices,
you should always use an S-VHS connection if your TV has one.
How to Choose the Right S-VHS Connection If
Your TV Has One.
DVDs contain a composite video signal that must
be separated inside the DVD player to produce an S-VHS output.
The only way you can tell whether you should use composite
or S-VHS connections here is to test them yourself. Connect
an S-VHS interconnect from the DVD player to your TV's video
input 1, and a composite interconnect from the DVD player
to video input 2. Now switch between the inputs to see which
S-VHS and Hi8 VCRs can produce perfect Y/C separation,
if the signals on the tape were recorded from a cleanly separated
source. The VCR must separate the Y and C to record tapes
off the air, and it usually does only a fair job. Some prerecorded
tapes are produced with excellent Y/C separation, some aren't.
If you have a TV with a good Y/C separator, using the S-VHS
connection with one of these VCRs will only sometimes produce
a better picture. If your TV's Y/C separator isn't very good,
though-if you see dot crawl and hanging dots on network TV
shows, for example-you're almost always better off using an
S-VHS connection with these VCRs.
Remember that the component video signal is
split into three parts; black and white information (Y
and two colour difference signals (Pb
The S-Video connection keeps the all-important black and white
) information separate, and combines the colour difference
signals into a single colour signal (C
). Instead of
three separate signals going to the display device, there
are now two separate signals.
As you would expect, combining
the two colour signals results in a degradation of the colour
information. In the grand scheme of things, this is a fairly
minor degradation, and you still get an exceptionally good
picture from this signal.