tv ke sare connection disconnect kre check kre phir bhi aa rhi h to setting check kre phir bhi ok nhi h to tv me hardware samsya ho sakti h sunischit kre ki tv warranty me to nhi h, ydi nhi to aap tv cabinate open kre ur check kre panel ke patte ko check kre aur ydi black ho to petrol se saf ke ydi ok nhi huaa to t-con board problem ho sakti