TV Motherboard White Component Sparks when TV Turned On

Joined
May 17, 2020
Messages
1
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
 

Azrak

Gawd
Joined
Oct 4, 2015
Messages
958
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/
 

ryan_975

[H]F Junkie
Joined
Feb 6, 2006
Messages
14,851
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:

ryan_975

[H]F Junkie
Joined
Feb 6, 2006
Messages
14,851
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/
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.
 

Nobu

Supreme [H]ardness
Joined
Jun 7, 2007
Messages
4,555
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?
 

GiGaBiTe

[H]ard|Gawd
Joined
Apr 26, 2013
Messages
1,273
looks like there is a hole in the center of whatever it is. GiGaBiTe you have any idea?
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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