hello friend frankis lobaina, thanks for being on the other side and when the tv I give power tilda the stamp led 10 times and turns on, it appears black and gray or white stripes in horizontal but lasts 1 sec and stays in stamp, disconnect the two cables that go to the source LEDs and turn on the TV and the TV is on, because the LEDs are not connected, there is a small filament, dim, in the light bulb, and it does not go out. for now I do not have a capacitor to test the filters, in case some are dry, I don't see swollen filters at the source, I already made a LED tester and probe strips by strips
Friend as you say, it is possible that in some way the focus is eliminating the protection of the TV, do this test, disconnect the LEDs and do not put focus, leave the LED connector disconnected, turn on the TV, if it is not protected, do not It turns off, the problem is in the power or filtering of the 12 volt or the backlight control circuit, if the TV turns off you have problems in the LEDs, many times the LEDs have small leaks that are detected by the control circuit and Still they turn on with a tester, in this case you must replace the led
To be more successful with this test, disconnect the tcon and remove the screws from the board, that is, separate the board from the TV chassis, comment on the details of the test to continue helping. Regards
hello friend franki lobaina sorry for the delay, I did what you said disconnect the tcom card and turned on all the LEDs and it does not turn off, then the problem is in the tcom, it is half complicated, I can not take voltage on this card as in others I take voltage in VGL, 6V ---- UVDT 16V ------ VGH 26V ------ in this tcom I complicate the avreviatures could you help me with photos to take voltages on this board
hello friend franki I want to inform you to solve the tv, buy the tcom and problem solved, I want to thank you for your contribution, for your knowledge a hug, thank you infinite thanks friend