TC-55CX400U Panasonic TV red light but black screen

[budm]

Re: TC-55CX400U Panasonic TV red light but black screen

VCOM, VDD, etc. are on the T-CON board.
At this point it is not clear to me if you have backlights or not.

[observer247]

Re: TC-55CX400U Panasonic TV red light but black screen

I checked with a flashlight, did not see anything on screen. Also I did not see any light in the dark.

[nomoresonys]

Re: TC-55CX400U Panasonic TV red light but black screen

Ok, so what next? try to unplug powerboard from mainboard and force on powerboard?

[observer247]

Re: TC-55CX400U Panasonic TV red light but black screen

I think I tried this too. I will try again. So I think I did this:

Removed the cable that goes from powerboard to mainboard. And pressed on the power button to see if the audio plays or there is any change in display. No nothing happened.