VGA-RCA adapter cable: description and purpose

The VGA-RCA adapter cable is used to connect audio and video devices. For example, you can use it to connect a DVD player, a satellite tuner that has an analog component video output, to a multimedia projector with a component video input. Quite often, users of consumer equipment are faced with a choice: buy a VGA-RCA adapter (or an extension cable) or make it yourself. This is due to the fact that the cost of long original cables from leading manufacturers is quite high. And money, and labor costs for the hand-making of such a device is very small. In this article, we'll look at what the VGA-RCA adapter is, and also its pinout. Thanks to this information, you can manufacture the cable yourself.

Description and pinout

To make the subject of our conversation, it is recommended to use (as a conductor) a computer cable of the "twisted pair" type CAT5 (it is better to use a shielded one), since it is capable of transmitting a video signal without loss of quality for a distance of up to 50 meters. The VGA-RCA adapter contains three RCA- "tulip" connectors ("dad" or "mom", depending on the purpose) and a D-Sub (15-pin) connector.

Pinout of the D-Sub connector for this adapter:

• The first is the signal red;
• The second is the signal green;
• The third is the signal blue;
• The sixth is the land of red;
• The seventh is the land of green;
• The eighth is the land of blue;
• 4, 5, 9, 10, 11, 12, 13, 14, 15 pins are not used.

Thus, only six pins are required for the VGA-3 RCA adapter. If you use a twisted-pair cable, then take the colored wires to uncoil each "tulip". For greater rigidity, the ends to which the RCA connectors are soldered are recommended to be crimped with a shrink tubing. Here, in fact, and the whole description. The resulting RCA-VGA adapter supplies the component video signal to the VGA input.

Application

Very often the VGA-RCA adapter is used to feed a component video signal to a computer monitor. However, this can not be done, the adapter will not work. This is due to the fact that the computer monitor does not accept the color difference component signals output by the DVD player, but the RGB component. To ensure the operability of such a connection requires the use of a special transcoder.

Conclusion

The described method of manufacturing the adapter can be used for other similar products: 3 x RCA - 3 x RCA, VGA to VGA extension, etc. For example, you can make an adapter for both an S-Video cable or a "Scart", most importantly - use the correct pinout These connectors. The use of a twisted pair makes such adapters and extenders very cheap in production. If you need a short adapter, you can use an unshielded cable, this will further reduce your costs. And if you need an extension cable from 10 meters or more, it's better to take a twisted pair with a copper screen. This will ensure high quality of the transmitted component video signal. On this element it is better not to save, because nobody will like to watch the film, while on the screen there will be "snow" or stripes that distort the picture. It is better to do once good than to remodel and eliminate shortcomings.