Samsung sound but no light

[88needcessity]

Replaced the backlight Inverter but still comes on for second then goes black. Replaced two other green boards but still same. 46 inch LCD

 

[Natsukage]

Hello.

Can you please tell us which board you replaced and in which order. What is the exact model number of the TV set? What is the history of the issue?

 

[88needcessity]

Hello.

Can you please tell us which board you replaced and in which order. What is the exact model number of the TV set? What is the history of the issue?

 

[Natsukage]

Hmm, can you please post once again?

 

[88needcessity]

LN46E550F6FXZA Version DH02
There are 4 circuit boards on the back of this 46" Samsung TV. First I replaced the board where all the wires that plug in are located, main board??, (HDMI, & sound wires), then I replaced the small board between the speakers at the bottom (still no change, screen comes on briefly then goes dark but still sound-lastly I replaced the backlight inverter board. Still no change. The only board that I can see left is the brown board in the center of TV where power cord and backlight are plugged in to.

 

[Natsukage]

LN46E550F6FXZA Version DH02
There are 4 circuit boards on the back of this 46" Samsung TV. First I replaced the board where all the wires that plug in are located, main board??, (HDMI, & sound wires), then I replaced the small board between the speakers at the bottom (still no change, screen comes on briefly then goes dark but still sound-lastly I replaced the backlight inverter board. Still no change. The only board that I can see left is the brown board in the center of TV where power cord and backlight are plugged in to.

Usually, you do not change boards unless you are perfectly sure of the issue, or you have a complete kit. Going by your issue and the boards changed, there is only two choices left:
Your LCD backlight is defective, or the power board (Brown) is defective.

You should have started with the brown board first. Any other board would have not gave you those symptoms. But even then, these need to be tested before changed.

 

[88needcessity]

LN46E550F6FXZA Version DH02
There are 4 circuit boards on the back of this 46" Samsung TV. First I replaced the board where all the wires that plug in are located, main board??, (HDMI, & sound wires), then I replaced the small board between the speakers at the bottom (still no change, screen comes on briefly then goes dark but still sound-lastly I replaced the backlight inverter board. Still no change. The only board that I can see left is the brown board in the center of TV where power cord and backlight are plugged in to.

Usually, you do not change boards unless you are perfectly sure of the issue, or you have a complete kit. Going by your issue and the boards changed, there is only two choices left:
Your LCD backlight is defective, or the power board (Brown) is defective.

You should have started with the brown board first. Any other board would have not gave you those symptoms. But even then, these need to be tested before changed.

What is the difference between the backlight inverter board and the LCD backlight

 

[88needcessity]

LN46E550F6FXZA Version DH02
There are 4 circuit boards on the back of this 46" Samsung TV. First I replaced the board where all the wires that plug in are located, main board??, (HDMI, & sound wires), then I replaced the small board between the speakers at the bottom (still no change, screen comes on briefly then goes dark but still sound-lastly I replaced the backlight inverter board. Still no change. The only board that I can see left is the brown board in the center of TV where power cord and backlight are plugged in to.

Usually, you do not change boards unless you are perfectly sure of the issue, or you have a complete kit. Going by your issue and the boards changed, there is only two choices left:
Your LCD backlight is defective, or the power board (Brown) is defective.

You should have started with the brown board first. Any other board would have not gave you those symptoms. But even then, these need to be tested before changed.

 

[88needcessity]

What's the difference between the backlight inverter board and the LCD backlight? Also what's a good site to look for kits and or parts? I really appreciate the help.

 

[Natsukage]

What is the difference between the backlight inverter board and the LCD backlight

The backlight inverter is the board which connects to the backlight. It looks like this:

Spoiler

The BACKLIGHT is the lights themselves, which are individual neon lights INSIDE the LCD panel. They are not user replaceable, nor do I recommend ever changing them without prior experience. Opening the LCD to change them is an extremely risky process. If the backlight is indeed defective, the TV is not reparable at a good price. You should buy another.

 

[Natsukage]

Also what's a good site to look for kits and or parts? I really appreciate the help.

Glad to be of help.

I usually recommend Shopjimmy.com. There is a multitude of good sites though. Ebay usually has good boards at good prices though.
What is your power supply part number? It is either I46F1_BHS (BN44-00441A) or I46F2_BHS. (Samsung BN44-00463A)

The power supply of this TV is known to break quite easily, and shopjimmy even offers a repair service for it.