The chances of your 12v power plug failing are slim. Your problem most likely is a fuse. First, check to see if there is a fuse inside the plug itself. Most screw apart revealing a fuse if so designed. If it doesn't contain a fuse, then the EE's fused or circuit protectected that circuit from the 12v circuit panel. Look there.
If all appears to be in order, test that 12v socket for continuity.
My tv just went out, checked the fuse box and everything looks ok. The plug red light is out so either the plug is bad or the socket is bad. Anyone have a solution? Thanks.
The power plug over heated and blew the inline fuse. Tried to get a replacement at Radio Shack but now would fit. Resorted to ordering one from Jensen. Plug was $10 shipping $12. Oh well should receive it in a week
When you get the new plug, I assume they will send both sides, male and female. Be sure to change both out, noting if you see any wire burn etc. It's odd that one of those fail, but you want to swap out both sides to eliminate any problem in the socket. Just sayin'