If your television or sound box need to connect to DVD, VCD, HDTV player, etc., if there are only two groups of input, or one group, you may directly buy an extension line of Audio/Video, it can be a multi Audio/Video converter. The quantity of Audio/Video equipments is not limited. If you can't buy the extension line of Audio/Video, you can also buy a parallel plug (3 lines) and an Audio/Video line of 3 lines. Because I can't buy the 3 lines parallel plug, I bought a 2 lines parallel plug and a single line parallel plug instead, as below:

The elementary diagram:

How to use?

Connect this parallel plug with an Audio/Video line of 3 lines, equalizing to make an extension line of Audio/Video. Everyday when you convert the Audio/Video sources, as the elementary diagram shows above, just pull out the left plug, then connect to another Audio/Video source, it will be converted. The profit is, when changing the Audio/Video source, you needn't to directly pull out the Audio/Video socket on the television or sound box, not only convenient, but also preventing that the cold solder happens on the circuit board, because of insert and pulling out frequently and continually.

The yellow plug is video, the red plug is right mono, the white plug is left mono, The connection photo of this parallel plug is below:

You may buy a parallel plug and an Audio/Video line for an Audio/Video equipment. If you have several Audio/Video equipments, you may buy several parallel plugs and Audio/Video lines. It is cheaper than buying the "4 groups of Audio/Video converter" in the marketplace. This method is good as long as you are diligent in moving hands.

Note: You should connect correctly, if you pull out the right side of the parallel plug "Fixup forever", and if both of the 2 sides are Audio/Video source, It may destroy some Audio/Video equipments.

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