Tv powering up with light then backlights turn off instantly

Hi all, I currently have a hitachi 55HK25T74U and I am experiencing some issues. When I turn the tv on I can hear it starting up, the screen has a quick flash then goes back to black. I can see that the backlights turn off right away and the hitachi logo is slightly visible when I shine a torch into the screen.

Currently don’t have the kind of money to fork out for a whole new tv, so I’m looking to repair it if I can.

I have attached a video of what’s happening to this post, it’s my first time posting so I hope the video uploads with no issues.

Any help on this would be greatly appreciated,

Thanks,

Dylan :)