TV Motherboard White Component Sparks when TV Turned On

A

aminemarref

n00b
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May 17, 2020
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Hello,

When I power on my LED TV, I can see a white component in the motherboard producing a little light that resembles a spark with a faint audible sound. In [1], I show a picture of the component that produces the "spark" which I suspect to be a fuse. The TV does not start at all.

My questions are:
  1. Is the little white guy a fuse?
  2. What happens if I connect its two ends with a wire, will this fix any problem associated with it? I do not have enough soldering experience to actually remove it, and put in a new fuse.
Many thanks,
Amine.

[1] https://www.dropbox.com/s/7s77ohqyc0ithsj/Motherboard Fuse Maybe.jpg?dl=0
 
This is not a general electronics repair forum. This forum is for discussing PC Computer motherboards only, not for TVs.
I recommend asking your question on the EEVBlog forum in the Repair section linked here: https://www.eevblog.com/forum/repair/
 
It looks more like an LED.

Don’t short it. If it is a fuse (not likely) and it’s blown, it blew for a reason. If it’s and LED or something else you’ll likely burn up something connected to it..
 
Last edited:
Azrak said:
This is not a general electronics repair forum. This forum is for discussing PC Computer motherboards only, not for TVs.
I recommend asking your question on the EEVBlog forum in the Repair section linked here: https://www.eevblog.com/forum/repair/
Click to expand...

People ask these types of questions here all the time, and there are plenty of EE’s that help answer them. Although somewhere like general hardware or displays would probably be a better subforum than this one to have asked it than this.
 
If I'm reading that board correctly, that should be VDU1...not that that helps much. Variable diode, resistor? Could also be a component related to the VDU circuit?
 
pendragon1 said:
looks like there is a hole in the center of whatever it is. GiGaBiTe you have any idea?
Click to expand...

I agree with ryan_975, it looks like an LED.

Though the LED looks like it has the black spot of death, which could be why it is sparking/flickering. Either the LED was over driven for most of its life and died, or something hit it with a power spike and killed it.

I recommend removing it and replacing it, but for the OP I'd recommend finding someone who can do it for you, SMD soldering can be tricky.
 
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