My old power supply unit burnt out, it still turned on but would often start smoking and burning after awhile of use. I unhooked it and ordered a new part which was an identical part down to every last part but was from a slightly different model TV. My model being a 47PFL3603D/27 and the part being from a 47PFL3603/F7.

The part number's and part types are identical. I even took pics of the two together. Is there something I may be doing wrong? I'm hooking everything up exactly how it was and even the burnt power supply board still turns the tv on.

Any help is appreciated.