LG 47LM660s with blown snubber capacitors
Good day folks. I've got an LG TV with some power supply issues. The PSU has various model numbers on it and you get different results depending on which one you search, so I just took a picture of all of them, since I'm not sure which one is the official model. The fuse was blown on this guy and there's a blown cap near the PFC transistors. In the schematic I've uploaded, it's C614 (notice it's missing in the pictures, since I'd already removed it. It's a snubber capacitor placed across D-S of Q601 and Q602 respectively. I shall also replace C603, an identical one in parallel with the PFC diode D603, since it seems pretty black. I'm sure it's not blown and it just got darkened by the smoke that came out of C614, since it's right next to it, but might as well replace it (already replaced when the picture was taken, that's why it looks brand new and clean). Question is: given that there are no shorted semiconductors like diodes or transistors, is that capacitor the only cause of the failure ? Can caps fail on their own like this ? (we're not talking about electrolytics which can most certainly fail on their own with no underlying cause, which our wonderful community is based on 
). I've had Samsung TVs with just a blown cap like this before and replacing it fixed the issue....anything else I should look for, or just go for it ? Cheers.
). I've had Samsung TVs with just a blown cap like this before and replacing it fixed the issue....anything else I should look for, or just go for it ? Cheers.
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