The mainboard is Samsung DE92-03761B. Smoke filled the house but the actual damage was a little difficult to find, turned out to be a cheapo Chinese high voltage relay, Golden GK-D-1C-12D, SPDT 12V. I'm going to file a complaint with the CPSC. Samsung gave me a ticket number but never called or confirmed via email - service is really poor. The problem with this particular failure is in the design; when the relay fails the default state causes current to flow unchecked to the element rather than disconnecting it. This leads to a thermal runaway of the element, causing he heat to increase out of control. Proper circuit design should never allow this to happen.
Guess I join the ranks of the others who have had their Samsung range (NE59J7630) go up in smoke. Mine caught fire two days ago, luckily I was home. The mainboard fried at the right-most burner connector on the mainboard. I ordered a new mainboard and will replace it, but I'm going to be sure to be standing next to it when it's on from now on. When I replace the board I plan to pull it apart to see what burned up. Based on the smell it's a resistor or diode. The design of the mainboard seems very fragile, especially when you consider the current requirements of each heating element. I called Samsung support which was a waste of time; no one knew anything about the range, and referred me to a local TV store (of course I'd have to pay because it's beyond the one year warranty period). A really shoddy product on the inside. I would not recommend this range to anyone. Samsung suggested I call Home Depot where I purchased the range, who in turn told me to call Samsung. The typical finger-pointing runaround,