G5 15 5590 LCD backlight

Start by checking the output voltages at the connector - then trace the wires back to the devices on the board.

I'll give it a try later,

just don't want to make things worst lol

That  looks more like a transistor (or diode).

The black multi-legged devices to the right are MOSFETs.

could it be this??

here is what i found so far using continuity test, i think lol

The next challenge (beyond the actual hot air soldering) will be finding those parts.  Unless you live in Southern China, you'll likely find the only way to source them is to find someone selling the same board cheaply, which failed from some other cause and harvesting the chips from that board. 

Just want to add the the white component is showing open circuit both ways 

Given that the chip is connected through those capacitors (EE7 chips) to the large black chip that appears to be a MOSFET on top -- it's possible that's the faulty part. I can't read the number on it, but that may be the place to start - unless you can find a schematic somewhere (I couldn't), it's all trial and error.  

Good work, though that fuse needs to be replaced.  If you've just bridged it with a wire, you've made some other part of the board the weak link for the next surge that comes along.

For sure, just a temporary solution until I get the part,

Since LCD panels are pretty standard in terms of power consumption (same panels fits different models manufacturers),

I'll look for a broken one and salvage the fuse.

Thanks for support

Thanks man .. you saved my g5