<P> The connector was initially used for audio signals . As with many other connectors, the RCA has been adopted for other uses than originally intended, including as a DC power connector, an RF connector, and as a connector for loudspeaker cables . Its use as a connector for composite video signals is extremely common, but provides poor impedance matching . RCA connectors and cable are also commonly used to carry S / PDIF - formatted digital audio, with plugs colored orange to differentiate them from other typical connections . </P> <P> Connections are made by pushing the cable's plug into the female jack on the device . The signal - carrying pin protrudes from the plug, and often comes into contact with the socket before the grounded rings meet, resulting in loud hum or buzz if the audio components do not share a common ground and are powered while making connections . Continuous noise can occur if the plug partially falls out of the jack, breaking the ground connection but not the signal . Some variants of the plug, especially cheaper versions, also give very poor grip and contact between the ground sheaths due to their lack of spring action . </P> <P> They are often color - coded, yellow for composite video, red for the right audio channel, and white or black for the left channel of stereo audio . This trio (or pair) of jacks can be found on the back of almost all audio and video equipment . One or more sets are often found on TV sets to facilitate connection of camcorders, other portable video sources and video game consoles . Although nearly all connectors, including analog and S / PDIF audio as well as composite and component video, can use identical 75 Ω cables, sales of special - purpose cables for each use have proliferated . Varying cable quality means that a cheap line - level audio cable might not successfully transfer component video . For digital audio, as long as a connection is successfully made using the cables the sound will remain faithful to the original signal because a digital signal can only be fully received or not received at all . Cables should meet the S / PDIF specification as defined by the international standard IEC 60958 - 3 for assured performance . </P> <P> The male plug has a center pin which is 3.175 mm (1 / 8 inch) in diameter, and is surrounded by an outer shell which is 8.25 mm (1 / 3 inch) in diameter . </P>

Can i use a red rca cable for video