No picture but sound
My tv has no picture but sound is fine.
After sometime picture comes but with white lines on it and after some minutes it goes black.
let us know what exact model your TV is and if it possible at all, post some images of what those lights etc. look like when your TV does come on. Yes, it could be a bad LCD screen but it is also possible that his is a power board/main board issue. 在已经存在的问题里加入图片
This could be a bad lcd. It can be a bad capacitor. If you feel comfortable,take the cover panel off the tv,and inspect the part of the circuit board next to where the screen cables connect. Check if any components look black or damaged.
I’ll research it a bit for you as well.