[Resolved]  Sony — Sony Wega TV Sound not working

I had purchased a Sony Tv (having woofer) from Noida. Till 5 days back it was working fine, but now there is no voice in the tv. I lodged a complaint in SOny service center, their engineer came and he said that the IC is damaged. Just after a day, its voice came back to my surprise. But now the problem is the voice is not very good and it seems that there is some minor problem in the sound system. I just wanted to know that such a big brand name with so great creditibility, can cause problem in just a year's time. I believe that this is more related to the reputation of the company. I am having one more Sony Tv at my home, which is around 7 years old and still without any problem. And this new TV (around 14000 Rs) has caused problem in just one year time. I believe that this complaint should be solved free of cost whether it is in warranty or not. This is just because even after paying so much for good quality i am facing problem in just 1 year. Please respond.