[FONT=Courier New]Hi [/FONT][FONT=Courier New]everyone from everywhere
This is JB from France
I repair/build electronics since ... a very long time.
Glad to join your forum
Take care folks
JB[/FONT]​[FONT=Courier New]Hi [/FONT][FONT=Courier New]everyone from everywhere
This is JB from France
I repair/build electronics since ... a very long time.
Glad to join your forum
Take care folks
JB[/FONT]​[FONT=Courier New]Hi [/FONT][FONT=Courier New]everyone from everywhere
This is JB from France
I repair/build electronics since ...

OK thank you - after more troubleshoot actions, I discovered there is no 3,3v on T-COM board - the output of the regulator is close to 0v. I will try changing this board and will tell you.
Best

Thanks for your reply
I have 2 questions :
1) do you talk about led panel or Driver card ?
2) if it's a driver card problem, do you think that it could have a relationship with the rubbon I had to put to have the TV starting ?
Thanks, regards

Thanks for your reply - do you talk about led panel or Driver card ?

Hello everyone

I have a QE55Q85RAT TV that no longer turns on - to be more precise, here are the diagnostic elements:

- when I turn it on, the red LED flashes once, we hear a slight "zz" twice on the motherboard, then the LED flashes twice and this cycle repeats indefinitely and no image

- taking inspiration from certain forums, I put tape on 4 tracks of the ribbon which goes from the motherboard to the panel and then, the TV still does not show any image but the sound works and the TV responds to the remote control (I turned on the voice guide)...

Hi I'm an electronic engineer and I'm happy to join this formum to learn and teach !
Have a good day