AZhitman wrote: ↑
Mon Feb 18, 2019 8:19 pm
amc49 wrote: ↑
Mon Feb 18, 2019 11:28 pm
Man, I fix stuff like that too but those are some REALLY small solder points there. My question is how does it get done without messing up solder joints close to it?
I do all my own computer stuff and that work when needed to change like bad caps when the market was flooded with them but it gets harder to change them successfully say if the board is multilayer in circuits too.
I have never soldered that small components before but sure have wondered how I would.........
Yes, it is an absolute shame how many parts get thrown in the trash over a 2 cent part going bad on them. Posting this on a 22" monitor I recovered from apartment trash that needed like 4 big can caps and the cost to fix it was maybe $7, the monitor has been working now (again) for years.
I've heard you can fix old TVs just as you can a monitor; that's really cool ^^
I have a lot of equipment for fixing electronics; in particular a Hakko fx888 with an T18-BR02 tip with 63:37 leaded kester solder and Chipquik SMD291 flux (and cheap chinese wick). I also have a Youyue 858D for hot air if doing surface mount stuff, but on the cheap, I have a BernzOmatic ST500 butane pencil torch. You can pull these surface mount components with the torch and a pair of tweezers for around 35 dollars.
For something like this I recommend a decent iron, leaded solder, some flux, maybe some wick, and a ST500 with the hot air attachment on it.
I just use an iron to reflow the joints with leaded solder because the melting point is lower and it's easier to work with than lead free solder. Then just heat the cap and pull on it with a pair of tweezers; it's not as hard as it looks, but having the tools makes it fairly easy. Using flux on the area you're heating will keep the other joints in check and when placing a new component you add solder to the pads, add some flux, and drop the component in place while heating the area of the board. The solder reflows and the component just pops into place.
If you end up getting the equipment for reworking surface mount stuff, you could easily practice pulling and placing components on old hardware or boards you'd otherwise throw away or have no use for. If you're using a 15W RadioShack iron and lead free solder, you're _going_ to hate soldering.
Hope this helps; I'm more than happy to go into more detail, and recommend watching this guy's YouTube channel if you want to learn more about component level board repair https://youtube.com/watch?v=mr1UVPsExiE