SUPOR induction cooker is normal, not heating, why?
Have professional knowledge of the people open the electromagnetic oven check IGBT (power) and the rectifier bridge, the two parts are not bad a heating coil, through the analysis of damage will not easily (all copper), display and other control system with no problem, heating this part only this block. If one of these two is damaged, the other one will be replaced. By the way, check out IC901 and ZD901
Is a problem with the pot, two is the fault line temperature control head plate, three is the LM339 fault. Which LM339 most likely, you put the pot right to normal heating, because the temperature is in the middle of the head, you put the pot right after the temperature sensing nature allowed, so can the normal heating. You can also put the temperature head down and away from the furnace surface distance, fault can be ruled out. Just can't automatic temperature control. Check and replace the three points, the natural fault elimination.
Mainly coil and vibration capacitors do not match, so that the synchronization signal deviation, resulting in the power tube burned out, not synchronized, not necessarily immediately burning, the main inspection power tube. The fault can be eliminated at three points
