samsung ue55mu6192u continuous switching on and off

[giova96]

Hello everyone
a few months ago I repaired this TV by replacing the motherboard (here is the topic)
after 4 months it presents a new problem, it turns on and off continuously, the audio can be heard for a few seconds before turning off
disconnecting the LVDS cables of the display the problem continues
I noticed that by removing the bridge I had made, the TV remains on with the audio and by connecting one flat LVDS at a time it remains on, connecting them both the main problem remains
do you have any advice?

the bridge in photos FB_TRDY_1 and FB_TRDY_3

[Storyteller12]

Sounds like the panel is bad or possibly shorted caps on the buffer board. If it start to reboot/ power on and off when both lvds cables are connected.
Guess the mainboard could have went bad again also. I would try the tape method first on lvds cables since it's free and see if the tv stays on and shows picture.

Do you have an image on the tv when 1 lvds cable is connected?

Reconnect your bridge wire and try 1 lvds cable at a time and see if 1 side has image or not.

[giova96]

when I disconnect an LVDS I have no image
I'll try to isolate the pins

[giova96]

Can anyone check if this file is corrupted?

[lotas]

Your dump is working.

[giova96]

ok thanks, I think I'll throw away the TV
even with the lvds disconnected it turns on and off continuously and I don't want to buy another card again, with the risk of the LEDs or screen causing problems (a known defect in these models)