Help reading samsung power board for un46f5500afxza.The board is BN44-00611A

[Steelers]

Hello,
I am troubleshooting a power board for un46f5500afxza. The board is BN44-00611A. The connector going to the LED strip has the label circled in the attached photo. Can anyone tell me what IF1, IF2, and N.C mean? I am guessing NC mean not connected. If thats the case, how do i check that the power strips are getting the right voltage?

Thank you.

[R_J]

Re: Help reading samsung power board

I (current) F (feedback) current feedback from the led strip in the panel, N.C. no connection The led drive voltage should be 204v/470ma, (CNL802, pins 1+~4+) Check this voltage when the tv is first turned on, it should be around 204v, if it measures higher, you have an open circuit in the led string

[Davi.p]

Re: Help reading samsung power board

I guess the IF lines could connect to light sensors within the panel..

[R_J]

Re: Help reading samsung power board for un46f5500afxza.The board is BN44-00611A

The IF1,2 (pins15,16) are not used on this model only pins 3,6 and 9,12 which go to the led strings. If you look at the trace side of the board you will see what I mean.
I believe pins 4&5 are connected together and 10&11 are connected together