good day I have problems with mtx thunder 1501d amplifier comprising 238 and 399 and led sumba toroidal coil, change the resistance of L471 and L472 221k and turn off the LED just turns on the LED 238 LED 399 and SiGe sunbando toroidal coil and surprise c479 and exploded capacitors C475 and check all the transistors and are good they may be