Soundbar No Audio

[janicerake]

I have a 2007 Samsung LN T2354H TV and am trying to hookup Vizio 2.0 Soundbar SB2820n-eo. I have tried hooked up with optical cable and with aux cable and have shut off TV speakers but I get no audio though soundbar. Any suggestions or are they not compatible?

 

[Paul NZ]

Is the firmware on it up to date?