UCD 25 watts to 1200 watts using 2 mosfets

IRS900D dont work again and generate smoke when conecct input signal to car player

what part did smoke ?is your connection correct? input ground to main ground?

its weird
 

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Hadi very strange irs 900 its easy work may by a cut in the out the capacitor or the inductor very strange y use various ,vmos and inductors work chek the diodes tensions and the 12v auxiliar the negative its -vrail comon and the external wire gnd to te imput
ruben.berron1 skype
Hi roben:)
how can i know about cut in the out capasitor ?
i was used T106-2 and wire 0.8 mm and 43turn
i was used original lm317 board for 12 volts
i was used another power source for 12 volt board and my negative amp power not conected to lm317 negative power and not common
i dont conect my input gnd to out put or power gnd
please show to me on a picture
thanks