audio/optical cable to RCA audio jacks

[lgplasma]

how do I connect my LG Plasma TV optical/digital/audio output to my receiver/speaker input which use RCA jacks? TV output looks like a square connector.

 

[americanaudiophile]

You need a digital to analog converter like this one:
http/www.parts-express.com/digital-to-analog-converter-%2851-compatible%29--180-999
as well as an optical cable and stereo RCA cable.