Panasonic Plasma TH-50PZ85U No screen No blinks on red power light

[Alicat]

Hello,

Stopped by this site trying to fix my parents Panasonic Plasma TV.

Model number is TH-50PZ85U

Power comes on and the red power light stays on solid.

Did a few checks like hold the power button on for 60 seconds, hold the - Volume while holding the menu button, no luck, still@ blank grey screen as the screen lights up very vague.

I also hear a few clicks.

I also think my parents said there was a thunderstorm and the TV failed after that.

Section 6 in the service manual talks about power and no screen, but I'm stuck on check the OSD, this is the first step.

I'm not very good at forums or computers or fixing TV’s, but there is always a first.

Thanks a million if you can help.