High Def Forum - Your High Definition Community & High Definition Resource

Go Back   High Def Forum - Your High Definition Community & High Definition Resource > General Chit Chat > Cables & Connections
Rules HDTV Forum Gallery LINK TO US! RSS - High Def Forum AddThis Feed Button AddThis Social Bookmark Button Groups

Cables & Connections Discuss and learn about HDMI Cables, DVI Cables, HDTV Cable Connections and more! RSS - Cables & Connections

What is Component Video Input?

Reply
AddThis Social Bookmark Button
 
Thread Tools
Old 10-29-2007, 05:24 PM   #1
What is HD?
 

Join Date: Oct 2007
Posts: 4
Default What is Component Video Input?

What is the precise definitin of Component Video Input (CVI)? If a TV has a set of Component connections marked "AV1" and a another set marked "CVI" next to it, what is the difference exactly?
HDNet4499 is offline   Reply With Quote
Old 10-29-2007, 06:27 PM   #2
Missouri_HD_Guy
 
Nevada_MO_Guy's Avatar
 

Join Date: Feb 2006
Location: Missouri
Age: 46
Posts: 1,182
Default

Quote:
Originally Posted by HDNet4499 View Post
What is the precise definitin of Component Video Input (CVI)? If a TV has a set of Component connections marked "AV1" and a another set marked "CVI" next to it, what is the difference exactly?
Welcome to HDF

What kind of tv are you talking about?

As analog video goes, component is the best. It will have three connections (Red, blue and green).
The video signal is broken up into three distinct signals. Red for the color red, Blue for the color blue and Green for brightness...the tv can figure out the green color by knowing the red and blue....it is a math thing.

The next best analog signal is the S-Video. It will have two distinct signals. One for the color information and the other for brightness.

Then there is the Composite connection....that yellow wire. All the video information is squeezed into one signal.

__________________
Sony KDS-60A2000 bulb hours ..... Yamaha RX-V1800 ..... Dish ViP 622 DuoDVR temps .... Toshiba HD-D1 ..... Philips BDP7200 ..... Mirage OMNISAT v2 FS .... Mirage OMNISAT v2 CC ..... Mirage OMNISAT v2 .... Mirage OMNI S12 (19Hz) ..... (2) Sony SA-W3000 (20Hz) ....Home Depot
Nevada_MO_Guy is offline   Reply With Quote
Old 10-29-2007, 09:06 PM   #3
What is HD?
 

Join Date: Oct 2007
Posts: 4
Default

Thanks, good to be here. Appreciate the graphic and explanation, but I must tell you I'm quite familiar with the terminology above. We're talking about an LCD TV, specifically the Phillips 30PF9946D/37 (referenced in another thread, as well). In the manual, it says to reproduce CVI, I can connect the CVBS jack to my DVD player, and then it says refer to my DVD player for instructions.

Now I have exactly one set of component video jacks under the label "AV1", in addition to L and R audio and the aforementioned CVBS jack. In fact, those are the only component video jacks on the TV. I can also switch among the different modes, two of which are AV1 and CVI, using my remote. So, again, I'm a bit confused about what the heck the manual is telling me or how to hook it up. How would the unit know whether the cvbs cable is for composite or CVI, and why would I want to somehow reproduce CVI if I can't reproduce the sound (unless I can connect it to an external receiver or something, I suppose)?

Last edited by HDNet4499; 10-29-2007 at 09:10 PM.
HDNet4499 is offline   Reply With Quote
Old 10-30-2007, 06:03 AM   #4
Progress Not Perfection
 

Join Date: Oct 2007
Posts: 5,715
Default

Quote:
Originally Posted by HDNet4499 View Post
In the manual, it says to reproduce CVI, I can connect the CVBS jack to my DVD player, and then it says refer to my DVD player for instructions.

Now I have exactly one set of component video jacks under the label "AV1", in addition to L and R audio and the aforementioned CVBS jack. In fact, those are the only component video jacks on the TV. I can also switch among the different modes, two of which are AV1 and CVI, using my remote. So, again, I'm a bit confused about what the heck the manual is telling me or how to hook it up. How would the unit know whether the cvbs cable is for composite or CVI, and why would I want to somehow reproduce CVI if I can't reproduce the sound (unless I can connect it to an external receiver or something, I suppose)?
It's all in the nomenclature:
In Philips "lingo", AV1 = Audio Video 1 (using component input)
. . . . . . . and, CVI = Composite Video Input.

I'm guessing the that input jack labeled CVBS (Composite Video Blanking and Sync) is the traditional yellow, right?

They both use the same audio connections.

When you select AV1 you are selecting the Component inputs.
When you select CVI you are selecting Composite vidio input.
Both use the same audio inputs.
Scottnot is offline   Reply With Quote
Old 10-30-2007, 07:04 AM   #5
What is HD?
 

Join Date: Oct 2007
Posts: 4
Default

First, I want to say thanks for the input. Second, in the manual, it states CVI is component video input, so either that is their intention or it's a misspelling but I'm proposing they meant Component. Ah, maybe I have to play around with it and see what happens...
HDNet4499 is offline   Reply With Quote
Old 10-30-2007, 08:37 AM   #6
Progress Not Perfection
 

Join Date: Oct 2007
Posts: 5,715
Default

Right, I see that on p. 7 of the user manual where they write:
Quote:
For reproduction of CVI (Component Video Input) also connect to the CVBS jack of AV1.
This is obviously a typo, since it is a single jack (and color-coded yellow, right) so should read "Composite Video Input".

It appears from p. 9 of the manual, that selecting "AV_1" on your remote will select the Component Input connection and selecting "AV_1_P+" will select the Composite Input connection.
Of course, as you said . . . play around to see what happens, just to be sure.
Scottnot is offline   Reply With Quote
Sponsored Links
Go Back   High Def Forum - Your High Definition Community & High Definition Resource > General Chit Chat > Cables & Connections
AddThis Social Bookmark Button
Reply

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads to What is Component Video Input?
Thread Thread Starter Forum Replies Last Post
what is the best way to hook up hdtv/home theater/ps3/cable marcwithac Speakers & Surround Sound 13 06-09-2010 06:49 PM
DVI vs. HDMI vs. Component Video -- Which is Better? mrm64 DirecTV Forum 9 08-08-2008 07:41 AM
Component Video Switch or DB15 Adaptor?? nathanstl Cables & Connections 16 12-22-2007 01:31 PM
What is the difference between a HDTV Monitor and a HDTV set? HD Novice Flat-Panel TVs 9 01-09-2005 09:57 AM


All times are GMT -6. The time now is 08:35 PM.



Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2004 - 2008, High Def Forum