TV shows vertical color lines
I got a Panasonic 50 inch LED UHD 4K TV model TH-50CX700A. I bought it from gumtree ( so no warranty) just 3 weeks back. First 2 weeks it ran like dream. Now it shows vertical color lines when turned on. Strangely sometimes it comes back if I UNPLUG it from power source and keep it like that for sometimes, plug on again then it runs perfect! But if I keep it on standby mode, and turn it on, the green indicator light blinks like 7-8 times and red vertical lines appear. Whats happening?
Is this a good question?