Sony India — sony 2017 hdr w672e model t. v. blinks for 2 sec while watching

Address:

Srikakulam, Andhra Pradesh, 532001

We buy sony t. V in september 2017 in srikakulam sony showroom. After 3 months we found some dust particles inside the t. V corners and top of the t. V. We give a complaint so they came and open the panel and cleaned the dust particles. After 2 months the t. V starts blinking for 2 sec it just stops the picture and on for daily 3 to 4 times. We don't know what happened nearly 10 months completed of buying. Please fix the problem