Chosen Solution

So, I got this LE650U TV. And whenever I power it normally it loads the SHARP screen briefly at full brightness. Dies out and then shows the SHARP screen again. Dies out and shows nothing then goes to a blinking light, one fast one slow. Saw that you could go into service mode with holding the “INPUT” and “VOL DOWN” button, then switching to the “CH DOWN” and the “VOL DOWN” button. It enters into that mode fine, just impossible to read, tried doing “lamp error reset” toggled on “Reset” toggled on “Industry unit” toggled on I get a green screen but when I unplug and turn on it goes back to same error code. Anybody have any ideas before it gets a backlight replaced? I can get specific lamp error codes or anything else needed off that service menu if wanted. Thank you in advance. Edit: Videos replicating issue. Booting:

Service Menu:

@cub73 if all the screens are low light, it will be the backlight. I just get confused on the service menu and the green screen. That should be dim as well, if it is your backlight that is failing. What exact model is your TV something like 60LE650U or 80LE650U etc. It will make a difference on the backlight. You also want to remove the back cover from your TV and post some good pictures of your boards and the interconnect ribbon cables. That way we can see what you see and hopefully assist you further. Adding images to an existing question