[mythtv-users] VGA to component cables
linux.luser at myrealbox.com
Fri Jan 5 06:05:42 UTC 2007
On 5 Jan 2007, at 05:01, Ow Mun Heng wrote:
> On Fri, 2007-01-05 at 15:55 +1100, Bill Williamson wrote:
>> On 1/5/07, Ow Mun Heng <Ow.Mun.Heng at wdc.com> wrote:
>>> Y not try some DIY 1st???
>> That will not do what he wants. That takes component and then allows
>> it to be displayed on devices which have a "VGA" plug (HD15) which
>> ALSO accepts component (usually projectors). It's a DIY version of
>> this: http://store.infocus.com/escalate/store/DetailPage?
>> It does NOT do the opposite (take a standard VGA signal and output it
>> in component)
> Woooo... My Bad.. I really thought it was doing the opposite.
Actually, it SAYS it is doing the opposite:
Will I be able to use the VGA to component adapter to watch DVD's
from my DVD player on my computer monitor?
Probably not, the adapter just "adapts" it doesn't convert. Nearly
all computer monitors need an RGB signal, as compared to the
(Y, Pr, Pb) signal that a DVD player outputs. To view a component
signal on an RGB monitor requires a transcoder, which converts the
component to an RGB signal. Many projectors and some rare monitors
will accept a compent signal via their HD-15 (VGA or RGB) port.
This is the intended use for this adapter. Bottom line: For the
adapter to work your display device must accept component inputs.
Will I be able to use the VGA to component adapter to watch my
computer on my big screen TV?
You can connect your PC to your wide screen TV if either the TV has
an RGB (HD-15 or 5 RCA) input or if your computer can output its
signal in component. Some video cards can do this natively (some
ATI) or via a "dongle" (most Radeon cards), some NVIDIA cards have
component output also. Bottom line: you'll have to check the specs
of your video card. If there is no RGB input on the TC or component
output from the video card, you'll need to get an RGB to Component
transcoder, or scan converter (really two names for the same thing).
I think the cause of the confusion is that he talks about "component"
and shows "YPbPr" in his diagram, yet VGA actually produces RGB (as I
understand it) ... and the author also refers to RGB in his VGA
Component != RGB, although I appreciate this is better understood by
home-theatre buffs in the UK & Europe than elsewhere.
I believe this kind of homebrew cable is better described in the
Compare the pin-to-pin connections in these links to those in the
diagram you linked to.
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