Hi my name is Roety,
I can help you with your issue ,
Very difficult to troubleshoot, you can check a few things,
look for swollen capacitors.
If the lamps light for a second and go off you may have a bad panel
CCFL lamp (part of the panel)
If I have helped you with your issue please click accept.
If you have more questions you can still respond
I will reply asap
Thanks I’m happy to help further over the phone at
https://www.6ya.com/expert/eric_ab7c09ec01841771