how can I hear Sony bravia KLV-40R482B sound through the speakers of sony home theater system DAV-DZ350.

Solution
You need to connect the audio out (which is one the bottom rear of the TV to the analog audio input of the Sony HTiB. You will need a stereo audio cable with a 3.5mm stereo plug at one end and a pair of RCA plugs on the other. This is what it looks like:
http://www.adafruit.com/products/1013?gclid=CM2fhvOcq8UCFQQT7AodxUwAFQ
It will work best if you turn off the speakers in the TV audio menu. Select the analog audio input on the HTiB and a surround sound mode you like (such as Dolby Prologic II).
You need to connect the audio out (which is one the bottom rear of the TV to the analog audio input of the Sony HTiB. You will need a stereo audio cable with a 3.5mm stereo plug at one end and a pair of RCA plugs on the other. This is what it looks like:
http://www.adafruit.com/products/1013?gclid=CM2fhvOcq8UCFQQT7AodxUwAFQ
It will work best if you turn off the speakers in the TV audio menu. Select the analog audio input on the HTiB and a surround sound mode you like (such as Dolby Prologic II).
 
Solution