Question Blown capacitor?

[KyzerB]

Pic

LG 32” TV

smells like chemical rubber

 

[KyzerB]

i figure it is, so can i cut it off?

 

[AllanGH]

I don't actually see a blown cap.

Keep looking with a bright light and sniffing.

From the description of the smell, it could be a popped diode, or switcher, even.

 

[KyzerB]

I don't actually see a blown cap.

Keep looking with a bright light and sniffing.

From the description of the smell, it could be a popped diode, or switcher, even.

actually i just noticed...

https://imgur.com/a/dxkL9A5

View: https://imgur.com/gallery/dxkL9A5

 

[AllanGH]

The photo has a bit of a jiggle in it, but am I seeing a popped diode in the far side of the bridge, nearest to the input choke?

All the caps look good...or, at least non-swelled, and the secondary rectifiers appear to be intact. Hard to tell about the feedback optoisolator....looks dark to me, over there.

[EDIT]
Hard to tell for my eyes, because of the double image, but it looks like the end of that left-hand diode is damaged?

https://imgur.com/N2FnxTa

View: https://imgur.com/N2FnxTa

 

[AllanGH]

The only other place that looks suspect is the feedback optoisolator, here:

https://imgur.com/hK1QYG2

View: https://imgur.com/hK1QYG2

 

[jonnyguru]

Pic

LG 32” TV

smells like chemical rubber

Are you assuming the white caulk is something that came out of a capacitor?

 

[jsmithepa]

Nothing seems immediately blown, if this a new TV? sometimes after a certain burn-in the smell goes away. One week before return period end, makes ur decision whether to return it.

 

[AllanGH]

Are you assuming the white caulk is something that came out of a capacitor?

I didn't consider that misinterpretation....but, yeah, as JohnnyGuru is implying, the white blobs are nothing to worry about--totally normal. You'll see that in almost every device you chance to open-up.

Leave it alone.

...this a new TV?

Another possibility. If the TV works fine, and the smell is the only thing you are reacting to, put it back together and ignore it, unless you see puffs of smoke, or notice weird operation.

If, on the other hand, the TV is older, and you are having problems with it, take clearer photos (of the areas that I attempted to highlight with crops) and re-post them.

 

[jonnyguru]

Right. New electronics tend to have a chemical smell. It's usually the solder flux from the wave solder machine.

 

[NightHawkRMX]

Right. New electronics tend to have a chemical smell. It's usually the solder flux from the wave solder machine.

Yea. I have returned a CX550 for that before realizing what the smell was.