I have a Dell computer that runs Windows Vista and I want to hook it up to use my TV as a monitor to watch a webcast. Please advise.
The first step is to inspect both your laptop and
TV and identify the connections, easily located on the back of either
component. There are five basic types of jacks, or ports involved:
*Composite/phono plug (RCA)
*Video graphics array (VGA)
*Digital video interface (DVI)
*High-definition multimedia interface (HDMI)
RCA connector, sometimes called a phono connector, is used for analog
audio and video components. Three round, colored sockets are standard —
left audio is white, right audio is red, and composite video is yellow.
These are standard jacks on older TV’s and laptops. A three-prong
cable, readily available at any computer or electronics, is the easiest
way to make an RCA laptop to TV connection.
or Super-Video, a more advanced analog video connector, uses a
four-prong round plug, like those used in TV cable installations.
Separate audio cables are the same as for the RCA connector, left
audio/white, and right audio/red. S-Video is commonly found on older TV
sets and some laptops.
S-Video on both TV and laptop, connecting a laptop to a TV is a simple
matter of a single S-Video cable. If your laptop has a great sound
system, you won’t need audio cables, but for better quality you’ll also
want audio cables.
to S-Video cable, a special laptop to TV cable, is available when you
have RCA jacks on one device and an S-Video port on the other.
VGA connector and cable are used to carry analog video signals plus
display and graphics data. The VGA is a 15-pin connector commonly found
on laptops and other devices. With this port you need a PC-to-TV
Convertor to connect laptop to TV. You simply plug the VGA cable from
the source into the convertor, and use an S-Video or RCA cable out to
the TV. The converter is USB powered, so there’s no external power
adapter to carry around, making this laptop to TV connection entirely
*A DVI port
is rectangular with 24 pins arranged in three horizontal rows of eight
pins for digital video; separate RCA analog audio cables fit into white
and red plugs. DVI ports are found on Macintosh laptops; sometimes they
are smaller than normal DVI ports and require an adapter, which usually
comes with the laptop.
HDMI port, one-half the size of the DVI port, is also rectangular with
19 pins. It provides digital audio in addition to digital video,
despite it’s smaller size, for a complete TV to laptop connection.
These ports are found on new HDTVs, and sometimes there are two or
more. TVs with HDMI ports are the only ones that do not require
additional audio cables.
with a single digital port labeled HDMI/DVI require only one cable when
the source is another HDMI component. But when source is a DVI laptop,
you need a DVI-to-HDMI cable for the video and a separate pair of RCA
analog stereo cables.
NOTE: Whenever ports do not match, you can by adaptors and/or cables to make any connection.
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Jan 20, 2010 |
Computers & Internet