Victor E

65.783

hace 6 años

bad, short or open leds. greetings

nel294

83

hace 6 años

Thank you, colleague, that is, when this TV has a defective LED, it does not directly deliver output to the LEDs?

Victor E

65.783

hace 6 años

no, the source comes into protection.

nel294

83

hace 6 años

Victor E, I got the source diagram, I see that other brands use the same board, I want to upload the diagram but I don't know where I have to publish it so that other colleagues can download it.

Victor E

65.783

hace 6 años

http://www.clubdediagramas.com/archivo/fuentes-a139/generica-m1308/fuente-rsag78206289-hisensepdf-f168715.html

Victor E

65.783

hace 6 años

Upload as it happens, the web address and friends can download it.

nel294

83

hace 6 años

The tv has an image, but without backlight, I want to see if the ic controller is getting tension.

Victor E

65.783

hace 6 años

For me they are LEDs, so far I never repaired driver source, if you always read bad ones I found greetings.

nel294

83

hace 6 años

ok, I'm going to take apart the panel, I wanted to have another opinion before disassembling the panel. It happens that with the strip tester the LEDs turn on, I see the light of the LEDs through the holes in the back of the panel, I was baffled since there is not even the minimum voltage in the B + connector of the LEDs. Thanks for the information. regards

Victor E

65.783

hace 6 años

One thing is an unregulated voltage such as that of the LED tester and another is the driver source that has a current and protection sensor.

nel294

83

hace 6 años

Yes, Victor is absolutely right, tomorrow I continue and commented, regards

Victor E

65.783

hace 6 años

Ok, greetings

nel294

83

hace 6 años

good day, I tell you that I continue with the same problem, and replace the strips and still without backlight, any other idea of where the fault may be?

nel294

83

hace 6 años

Hello again, I already solved the problem I had with the retoilumination. I had the short one the mosfet (V901) 5N50, Now I would like to lower the current of the LEDs a bit, in this TV is the first time I am going to do that work, any idea how to make reform?