Samsung UN65F6350AFXZA

[moandkaren]

Bottom half of tv is dim and flickers. Self diagnostics had TCom board as ng, replaced it but no luck. Seems to be a backlight issue. Is this the power supply or main board or backlight circuit. Any help appreciated.
Mo

[ReeceyBurger123]

Re: Samsung UN65F6350AFXZA

If you look through the back panel can you see the backlight flickering ?

[moandkaren]

Re: Samsung UN65F6350AFXZA

yes the bottom half backlight is for sure flickering

[ReeceyBurger123]

Re: Samsung UN65F6350AFXZA

Ok you need to take the lcd panel apart to the backlight then and get us some images.

[moandkaren]

Re: Samsung UN65F6350AFXZA

Changed out power board no luck. I am not sure how to get at backlight. Do I have to remove screen.
Thank you so much for trying to help.

[Louis82]

Re: Samsung UN65F6350AFXZA

Yes. You need to disassemble the screen until you get to the LED strips. Be careful when you open the screen because is very fragile. If you break it, the game is over. There is no way how to fix a broken screen.

[moandkaren]

Re: Samsung UN65F6350AFXZA

I think I have a problem with backlight LED strip. What a pain

[budm]

Re: Samsung UN65F6350AFXZA

Does it flicker less or not at all if you turn down the backlights level on the on screen user menu to may be 50%?

[moandkaren]

Re: Samsung UN65F6350AFXZA

No

[budm]

Re: Samsung UN65F6350AFXZA

The LEDs are too far gone then.

[moandkaren]

Re: Samsung UN65F6350AFXZA

To clarify, when I turned down the brightness, the bottom half of the tv was just totally dark, almost not visible, but I did not notice if the lights were still blinking. If the LED are the problem, why do they flash and why would it be the whole bottom.

[budm]

Re: Samsung UN65F6350AFXZA

Are you talking about the Brightness or the Backlights level, they are not the same?

[ReeceyBurger123]

Re: Samsung UN65F6350AFXZA

You said the Leds were flashing so it has to be them if thats the case ?

[moandkaren]

Re: Samsung UN65F6350AFXZA

Great question, on the samsung I usually select the brightest mode. Which one I turned down, heck, I wish I remembered. Have it completely apart right now so a little hard to check. You are thinking its the led's since they are flashing, so must be backlights?

[ReeceyBurger123]

Re: Samsung UN65F6350AFXZA

So looking through the back cover you can actually see the Leds flickering ?

[moandkaren]

Re: Samsung UN65F6350AFXZA

Right now have it completely apart. Reconnected power board and Main board and the bottom half definitely flicker. I thought to test to see if its actually the led's was going to try the bottoms on top and the tops on the bottom. Any other suggestions since I do not have any testing equipment.

[budm]

Re: Samsung UN65F6350AFXZA

Can we see the pictures of how the LEDs are setup?

[moandkaren]

Re: Samsung UN65F6350AFXZA

A little more detail top 3 rows light, middle 3 rows are dead, bottom 5 flash.
Middle ones need replacement? attached photos show connections and configuration

[moandkaren]

Re: Samsung UN65F6350AFXZA

on closer inspection, the bottom 5, one row only has half blinking

[moandkaren]

Re: Samsung UN65F6350AFXZA

Well I think I got it. Two left and one right are out. I am having a dickens of a time finding replacement. Need two 2013SVS65F L11 and one 2013SVS65F R9. Any suggestions appreciated.