Hello everyone, I was gifted a Toshiba 46xv640u from a neighbor who claimed it started having issues after a lightning strike and I'm looking to fix it. The issue is that there is no display or audio when using HDMI ports. The Tv powers on fine, and can navigate the settings menus, and can even function when hooked up to RCA input, albeit only audio unless svideo input is used. I haven't tested the VGA ports yet. I took the back panel off and there is no visible damage to the control board and there are no loose connections. I don't have a multimeter to check everything so any advice on how to fix this would be appreciated.