Good evening people.
I'm at a loss trying to repair a charger. It's based off a switch mode power supply, and output just pulsates. I have checked all diodes, main resistors, optocoupler and more...
I get 350v DC on the main side, but on the secondary side it pulsates up to ~3v...
I have a TO-220 component on the secondary side I can't identify, hope someone can pitch in here... (See photos) "markings are: T410 BV4715 (Google search renders nothing)