Samsung UN46EH5000F no backlight

[ed123]

Re: Samsung UN46EH5000F no backlight

Got a second main board from another vendor selling new boards and now the back light turns on very dim but uniformly dim all over the back through the tabs on the back of the TV I can barely see anything.If I unplug the main full brightness.Could it be the LED's?

[budm]

Re: Samsung UN46EH5000F no backlight

Got a second main board from another vendor selling new boards and now the back light turns on very dim but uniformly dim all over the back through the tabs on the back of the TV I can barely see anything.If I unplug the main full brightness.Could it be the LED's?

That means your new main board is keeping the backlights level low. You need to check the dimming control line.
BTW, do you see pictures on the screen?

[ed123]

Re: Samsung UN46EH5000F no backlight

Hi Bud

Yes, I am able to see the menu options and tried turning up+down the backlight and if it made any difference at all it was hard to tell.The vendor hot price said it sounded like a bad eprom and has already sent out a replacement board N/C.

[budm]

Re: Samsung UN46EH5000F no backlight

Sounds like you are having bad luck getting good working board even though the sellers always say they are tested good working board which I doubt that they actually test them due to the fact that you have to have the TV that is made for the board.

[ed123]

Re: Samsung UN46EH5000F no backlight

It's bad backlights! I just removed the screen and 12 out of 44 are lighting up.