Desoldering: detached solder pad

scherzo · Post by **scherzo** » Wed Oct 13, 2004 9:21 am

Am I basically screwed if I detached a solder pad? Can I still try to solder a wire there and hope that the solder makes contact with any trace (even though I can't really see any)? This is my SNES2 board!

Please help. Am I screwed?!

scherzo · Post by **scherzo** » Wed Oct 13, 2004 12:12 pm

Ah, I found a solution of the net... Automotive Defogger Repair Paint. Does that sound good?

MR.MOD · Post by **MR.MOD** » Wed Oct 13, 2004 2:03 pm

Just trace the broken trace back to it's source and solder the wires directly to the chip or another pad on the same line. I had to do that on my snes cause I fuged it up desoldering too. I'll post pictures if you want some.

scherzo · Post by **scherzo** » Wed Oct 13, 2004 2:10 pm

Yes, pics would be nice. I figured I could follow the trace but I can't see most of the traces with that protective brown coat of stuff in the way, ya know? I didn't want to go peeling it before I got "expert" opinions.

I fudged pins 1 and possibly 2 of the multiout. Thanks

Post by **gannon** » Wed Oct 13, 2004 2:25 pm

yeah, the silk screening on the snes really sucks as far as modding goes

MR.MOD · Post by **MR.MOD** » Wed Oct 13, 2004 2:33 pm

gannon I think it is a tripple layer board.
What side did the trace fall off if it's the dark side you cant see the traces it'll be hard to fix because there is another layer of copper over the traces.
You'll need to trace the top part of the board.
i can't upload pics to photobucket right now I'll try l8r

scherzo · Post by **scherzo** » Wed Oct 13, 2004 2:36 pm

It's the dark side, unfortunately. I'm going to buy some conductive paint from autozone on the way home today. If somebody thinks that's a bad idea, please let me know.

Post by **gannon** » Wed Oct 13, 2004 2:59 pm

Mr. Mod, I'm pretty sure that the snes is tripple layered as well, but the silk screen still sucks as far as tracing traces goes.

HK-47 · Post by **HK-47** » Wed Oct 13, 2004 3:47 pm

Yeah this happened to my atari board. Im just gonna do the wire thing. Hope can fix the problem, though.

MR.MOD · Post by **MR.MOD** » Wed Oct 13, 2004 4:40 pm

gannon wrote:Mr. Mod, I'm pretty sure that the snes is tripple layered as well, but the silk screen still sucks as far as tracing traces goes.

Yeah it makes it nearly imposible.
You could use an x-ray

scherzo · Post by **scherzo** » Tue Oct 19, 2004 8:02 pm

Well, remember I had screwed up a solder pad or two... now I've manage to break off one of those tiny resistors!

I was attempting to desolder the 7805 in my SNES2. First, I cut the chip off with some pliers so that I could remove a pin at a time, like I've read to do if you don't care about the component. Then I removed as much solder as possible with my spring pump thingy. Then I used some wick. I managed to get one of the pins out very nicely. But the other two were still attached and I couldn't seem to get rid of more solder, even though I still saw a tiny bit in the hole. So my impatient self resorted to trying pull and push the pins out. That's where I screwed up. The pliers I was using to try to push the pin out slipped and destroyed a resistor... those tiny kinds. I think my SNES portable project is a failure. I need to practice more on some old useless boards.

Can anyone help me? Is the tip of my iron bad? I tried to clean it and coat it with a little solder but the solder wouldn't stick. Is the surface of the tip fried? I really REALLY want to make a portable but now I'm just plain afraid to ruin any more expensive and RARE parts. I'm a programmer at the core. I can write code recklessly and fix it later. And I think I've been approaching this project the same way. Foolish me.

I'm very determined on making this myself too. I'm not that interested in buying a premade portable. *sigh* Maybe I'll just have to wait for Ben's book to come out. Thanks guys.

MR.MOD · Post by **MR.MOD** » Tue Oct 19, 2004 8:58 pm

If you want you could buy the schematics to find out what you need to fix it. For the iron I would put a little flux on the tip and then some solder. That should make it stick. For soldering I would try working on junk to get better @ soldering before working on anymore systems. Maby you should start out with a easier poerable?

HK-47 · Post by **HK-47** » Wed Oct 20, 2004 1:45 pm

I need to practice more on some old useless boards.

Now you've got one.

scherzo · Post by **scherzo** » Wed Oct 20, 2004 1:46 pm

HK-47 · Post by **HK-47** » Wed Oct 20, 2004 1:49 pm

Sorry if I made you feel bad. Though I missed sponges post an now that Ive read it I agree with him. Find out what the resistor is and see if you can fix it.