- Joined Aug 8, 2019
I have one bad capacitor in motherboard that needs to be replaced. I add some solder to connection so that heat transfers to solder joint and then i pull out bad cap easy. But i notice that on some motherboards, or device that i try to remove, the solder that i add will not mix with solder that is used in production, so the solder i add melts but "factory" solder stay hard and i cant make it melt. Any idea what is wrong or what setup should i use ? Also the heat on solder station was 400C, and i try two solder stations with different tips. I Also try the heat gun and end up damaging pcb on one spot.