You have to change the power supply bord. If fuse blows off then the smps driver section is faulty. Also there is possibility of faulty MOV . MOV metal oxide verister use as a protection device. It would look like a polisher capacitor.. if it's short the you can try to replace it..
If you want to know more about MOV the you can find details in the Internet with photos.
If you need to get some more information about repairing television then check the link bellow http://electro-medical.blogspot.com/