Re: No power on Samsung LN40B500P3FXZA, but Caps look ok?




Sorry, jumped the gun with the questions. I do, and just looked up how to test ceramic fuses. Same go for the Fets? Just test for continuity?...

Re: No power on Samsung LN40B500P3FXZA, but Caps look ok?

Thanks for the fast reply!!

How do I check the Fets? Just for a good connection? Or is there something I need to do with a MM?

Also, how can I tell if the fuse is bad? These are Ceramic correct?

Hello everyone! I have a Samsung LN40B500P3FXZA that will not power on. No Power LED, and no leaky Caps. I disconnected the Mainboard and the back light did not power on. I suppose the next step would be to check the Mosfets and Bridge Rectifier? I'm just not sure exactly how to go about that?

There was also a residue on the Mainboard where the cushion was. Not sure if that was normal. Any help you guys can provide is greatly appreciated!



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Re: New Members - please post your introductions here

Hello! My name is JD, and while I have a fairly extensive Automotive background, there's not much in the way of Electronics aside from general wiring. Hoping to become more versatile with soldering and diagnostics.