TV went off with a 'POP' noise.
TV went off with a 'POP' noise.
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PumpkinSteve

Original Poster:

4,231 posts

178 months

Saturday 28th May 2011
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This is going to be rather vague: My brother is throwing away an LCD TV, he says it wet off with a 'POP' and slight burning smell, they didn't even bother to check the fuse before getting a new TV so I just wondered if it could just be a fuse?

I've personally never had a TV blow a fuse so I don't know if it fits this description. If you're wondering why I haven't just changed the fuse to check, they threw away the power cables and they are now gone so I can't test it without buying new ones, so I'm just wondering if it sounds like it could be fixable?

I have opened it up and there are no burnt components or anything I can see that would produce a burning smell. I thought it might have even been the transformer as it uses a 3-pin kettle-style plug into a block transformer and then from transformer to the TV, like a laptop charger:


Super Slo Mo

5,373 posts

220 months

Saturday 28th May 2011
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I would think chances are fairly good that it's the power supply. Do you have a multi-meter? If so, set it to the correct voltage band and measure the output.

TonyRPH

13,443 posts

190 months

Sunday 29th May 2011
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Have a look around for swollen capacitors in the power supply.

Also be warned: Capacitors in the power supply can store high voltages (400v DC) for some time after the set has been disconnected from the power.

These can give you a nasty jolt.

Swollen capacitors tend to look like this: (note the bulge on the top of some of them in the pic)


grumbledoak

32,330 posts

255 months

Sunday 29th May 2011
quotequote all
A POP and a smell is more likely to be a capacitor than a fuse. Get proper help.

PumpkinSteve

Original Poster:

4,231 posts

178 months

Sunday 29th May 2011
quotequote all
Thanks for the advice, if that's the case I'll just chuck it out, I just thought it might be worth keeping if it was something simple but it's only a supermarket-brand TV anyhow.