Does this chip look fried?? Beginner here! Thanks

[Snakeboy]

I opened up my LG 3D TV because it was turning itself off and on. I've read that chips like this can look burnt or discoloured if faulty..any advice appreciated!see attached pic. Thanks!

[TimNJ]

I would suspect a power supply fault, and not a chip like that.

If it's turning itself on and off repeatedly, it might be in some sort of "hiccup" mode caused by a fault in the power supply. Usually, if something is shorted (or there is some sort of overload) in the switch-mode power supply, the PWM controller will effectively turn off the supply until the fault goes away and then restart again.

First check if anything looks burnt, then check the output capacitors. See if they look visibly bad. If they look fine, they still might be bad. If you can, you should take them out of circuit and measure them with an LCR/ESR/multimeter. Might want to see if any power transistors look shot, or the diode on the secondary.

[Chopsticks]

almost all tv's fails due to caps getting old/drying up. its a common thing and like he above post id check those first preferably with an ESR meter

[CJay]

Looks toast to me.

Run your finger over the top and see if it's smooth.

[ali6x944]

A good way to remove any confusion is to see the datasheet, input current section and try to measure the input current of the chip, if it is higher it is probably toast, I know it is hard in ur case and I don't expect u to do it, it is most useful in through hole packages because they are easier to test.

[james_s]

It's very rare for parts like that to appear visually damaged. If it was blown up that badly the TV wouldn't work at all. Power supply issues are far more common, usually bad electrolytic capacitors and occasional collateral damage.