What component makes a stroboscope flash?

[radiator]

Hello
Does anyone know what makes a stroboscope flash? I have a light mixer, and it has a strobe button. When you press and hold the button the strobe starts to flash repeatedly, but now when you press the button it just flashes once. I opened the mixer, checked the components, and I don’t know what could be wrong. There is a 14 pin semiconductor (tc4584bp) that I don’t know how to measure or check if it’s working. Stroboscope is an external unit and works fine on its own.

Thanks for your help

[KMoffett]

How about posting the make and model of the mixer and strobe unit.

Ken

[radiator]

Light mixer model: USB9700. Don't know for strobe unit, but i have two of them, both work the same, so the problem is not in the strobe unit.