[Component Video]
[Composite Video]
[DVI]
[HDMI]
[DisplayPort]
[Monitor Buses]
[RS-170]
[SCART] [SDI]
[S-Video]
[Home]
Component Video is also called YPbPr, or YCbCr and
transmits the picture information in a luminance and phase-opposite
chrominance pair over three coax cables [Red, Green, and Blue]. The gear, as in the Blu-ray player rear panel shown below is sometimes labeled; |
Component Video Cable |
YPbPr is 'sometimes' used when discussing the three-wire analog
video component interface EIA-770 [EIA-770.2-a SMPTE-240M and others].
The luminance (Y) is represented separately from the color components (Pb
and Pr).
In some cases The Y output is provided as a Green jack, the Pb is
provided as a Blue jack, and the Pr is provided as a Red jack. The 'Y'
signal carries the black and white information, The 'Pb' and 'Pr' signals
carry the color difference signals.
YCbCr is used when discussing a digital component interface
ITU-601 or ITU-656 digital interfaces (formerly CCIR-601, CCIR-656).
Y is Luminance, Cb is Blue Chromanance, and Cr is
Red Chromanance. CCIR-601 defines an 8-bit DIGITAL 2's compliment coding
for component video
RGB is the component format in which the primary colors (red,
green, and blue) are transmitted as three independent components. The
color, black and white signals are combined within these three signals.
Only using RGB inputs requires separate horizontal and vertical sync
inputs. RGB presents a better [TV] signal than the other forms of
Component video, S-Video, Composite Video, or RS-170. RGB sends each
signal on a separate cable and does not mix the color signals.
The Component Video connections are the Green, Blue and Red RCA jacks.
While the Red, White and Yellow RCA jacks represent Composite Video connections.
Single "Yellow" (shielded) RCA jack [75 ohm coax cable], which is not to
be confused with the Audio (Red and White) jacks of the newer three cable
systems, or just a single black wire in the older systems.
It's a composite of the black-and-white information (Y) and the color
information (C).
Composite Video may also be called VBS [Video, Blanking
and Syncs], or CVBS [Color, Video, Blanking, and Sync].
The video signal is on the yellow cable, while the white carries the left audio and the red carries the right audio.
S-Video is better than Composite Video, and Component Video is better than either of them.
Composite Video Connections | Although the Composite Video interface is still found on Audio-Visual gear as of 2010, you don't want to use it. |
These days, the HDMI cable is the one you want. But you still need to retain compatibility with your old gear.
Digital Visual Interface [DVI] .. standard for high-speed, high-resolution digital displays. Developed by the Digital Display Working Group (DDWG).
Refer to the DVI page for additional info and connector pinout, signal names and a description.
Digital Video Broadcasting/Digital Audio-Visual Council (DVB/DAVIC),
developed by DAVIC [inactive] and DVB [www.dvb.org].
DVI has also been adopted by European Telecommunication
Standards Institute (ETSI) and International Telecommunication Union (ITU)
DVI has a number of different types connectors:
DVI-D Digital only connector; 24 pins [modified D style]
DVI-I Digital and Analog [RGB]; 29 pins [modified D style]
DFP Digital only connector
You may still desire a DVI connector on a personal computer,
but on an A/V or TV system you want a HDMI connector.
SCART: Euro-Audio/video connection system to BS 6552:1984 (EN
50-049). Note that in these examples that the cable side is a male connector, and the device side is a female connector. Note the current usage of the SCART connector is unknown, the date in the standard indicates 1984. |
SCART Connectors |
SCART Vendors; Foxconn {Single/Double Scart Connector, Right angle 42 pos} |
SCART Connectors | Two SCART female connectors. |
Pin | name | Description | Pin | name | Description |
1 | AOR | Audio Out Right | 2 | AIR | Audio In Right |
3 | AOL | Audio Out Left + Mono | 4 | AGND | Audio Ground |
5 | BGND | RGB Blue Ground | 6 | AIL | Audio In Left + Mono |
7 | B | RGB Blue | 8 | SWTCH | Audio, RGB switch,16:9 |
9 | GGND | RGB Green Ground | 10 | CLKOUT | Clock Out |
11 | G | RGB Green | 12 | DATA | Data Out |
13 | RGND | RGB Red Ground | 14 | DATAGND | Data Ground |
15 | R | RGB Red / Chrominance | 16 | BLNK | Blanking Signal |
17 | VGND | Composite Video Ground | 18 | BLNKGND | Blanking Signal Ground |
19 | VOUT | Composite Video Out | 20 | VIN | Composite Video In, Luminance |
21 | SHIELD | Chassis Ground, cable Shield | - | - | - |
Serial digital interface [SDI] standard is based on a 270 Mbps transfer rate, over a single 75 ohm coaxial cable, up to
600 feet.
Serial Digital Interface is a digital
broadcast television standard providing digital encoding of
standard NTSC and PAL formats, with embedded audio. SDI is used in
Television stations, cable channels, and professional production
Equipment. Refer to the SDI page for more information.
The coax cable shown above would also work as an analog antenna input as well.
Which would be the Tuner input or Antenna input on your TV.
|
S-Video [Super-video] sends video signals over a multi-wire cable,
dividing the video information into two separate [75 ohm coax or twisted
pair cables] signals: one for luminance (Light) 'Y' and one for
chrominance (Color) 'C'. Each signal is sent shielded, inclosed in a
4-pin Mini-DIN. S-Video is synonymous with Y/C "Component" video. However
Y/C is the correct term, but the term S-Video is widely used to indicate
the interface when in fact refers to a VCR tape format. |
Although S-video did work well in the latter days of VHS tape drives,
You really want to at least upgrade to Component Video [above].
Or better yet a digital interface like HDMI.
In this particular Audio/Visual receiver [Sony STR-DE995] the S-video connectors are highlighted.
This 5.1 A/V receiver uses S-video on five different video channels; TV, DVD, Video 1 and Monitor.
However this receiver has the option to also use Composite Video instead of S-video depending on the connections on the rest of the gear.
Around 2006 when this receiver was purchased S-Video was still in wide-spread usage.
However even if S-Video was in decline by 2006, the interface would still be required to connect to other A/V gear in the system.
As of 2010 the HDTV purchased came with one S-Video interface, but a Blu-ray player did not.
DisplayPort: The DisplayPort interface: is listed on its own page.
RS-170 EIA/TIA-170 Electrical Performance Standards - Monochrome Television Studio Facilities. RS170 is now listed on the RS-170 page.
High Definition Multimedia Interface, Refer
to the HDMI page.
The High Definition Multimedia Interface HDMI cable
supplies both high-definition video and multi-channel, digital audio for
consumer Audio Visual [AV] entertainment equipment [HDTV, Amplifiers].
The HDMI interface is all digital, with no analog signals. HDMI is
backward compatible with the DVI interface, but without the more advanced
upgrades and no audio. Converters for HDMI to DVI cables are being
produced. The HDMI cable is 5 meters in length and uses 28 AWG wire.
DFP [Digital Flat Panel] provides
info and connector pinout descriptions
EVC [Enhanced Video Connector] page provides
additional info and connector pin-out descriptions
EGA [Enhanced Graphics Adapter]
is an obsolete but provided for reference.
XGA [eXtender Graphics Adapter] is an Out-dated but provided for reference.
VGA [Video Graphics Adapter] was made obsolete by the SVGA interface.
SVGA [Super Video Graphics Adapter]
This is the current VGA standard that would be found on a PC.
PC Video Buses, which gives the video interfaces used on computers
ATSC "Advanced Television Systems Committee" [www.atsc.org]; Recommends specifications for
Digital TV to the FCC
MPEG.org [www.mpeg.org]
SMPTE "Society of Motion Picture and Television Engineers"
VESA [www.vesa.org] With FTP down-loads
Additional data:
DTVLink: DTV over IEEE-1394
NTSC [National Television System Committee] is used in US [and
Japan]
PAL [Phase Alternation by Line] 50Hz, at 652 lines, is used outside the US
.... M-PAL [Phase Alternation by Line] is used outside the US
[Brazil]
.... N-PAL [Phase Alternation by Line] is used outside the
US
SECAM [Sequential Color with Memory] is used outside the US
[France/Russia/Africa]