electrolytic capacitor 68uF / 400V was swollen. I made the change this capacitor yet still not connecting.
I went back to test the transistor SSS6N60A, TL431, photocoupler, diode, fuse and a diode iclusive zenner secondary but all were good. The only component that is not tested an integrated (PWM) whose code U35 ( ? ) must be 6 pin ( ? ) .

Thanks to help from Eastern friends that the suspect is the CI LD7535BL and probably burned. On pin 5 (VCC) have only 5VDC voltage and output pin (pin 6) has no tension.