Re: Problem Cleaning / Removing Old Solder from Board



It is an SMD board.



At 1st, I was trying to use a copper desoldering braid, but I noticed that it didn't seem to be removing any of the solder. I then tried to melt the solder on the board directly with the soldering iron (and then apply the braid once it was softened), but it didn't melt at all. I applied the soldering iron directly to the solder for a few minutes and nothing happened at all. I then tested the soldering iron on two types of solder wire and it melted them fine. So I was...

I am working on a main board for a Samsung LCD TV. One of the polymer tantalum capacitors is bad and I am replacing it. I have removed the capacitor and am trying to clean up the contacts and remove the old solder. But the solder on the contacts doesn't seem to melt at all with the two soldering irons that I have (a 15W and 30W). The two soldering irons get hot and can melt solder wire just fine, but for some reason, the solder on this board won't melt at all with them. Do I need a special iron to remove the solder on this board?

Re: What Does (M) on Capacitor Mean?

retiredcaps: Thank you very much.

I can see that the capacitor in the attached image is 100uF 10V, but what does the "(M)" in parentheses mean?...

Re: New Members - please post your introductions here

Greetings. Looking to learn about electronics.