Fuse on Samsung 55" TV power supply blows immediately when plugged in
tl;dr: How can I a troubleshoot a disconnected Samsung TV BN44-00503A power supply board that blows a replacement fuse as soon as power is applied?
I have a Samsung 55” TV (UN55ES6150) which made a popping noise and shut down.
I opened it, and found that the 250V/5A ceramic fuse on the power supply board (BN44-00503A) was blown.
I replaced it, but the new fuse blew the moment the set was plugged in, so the fuse blowing was not a fluke.
So, I replaced it again, and disconnected all cables from the power supply board before plugging the set in, but it still blew immediately.
I’d really like to fix this set, and I’m handy enough with a soldering iron, multimeter and safety issues.
I realize I could go shopping for a new power supply board, and I’m not against that, but I wouldn’t mind taking a shot at fixing this one.
Any suggestions for troubleshooting this type of power supply board?
Is this a good question?