Replacement PCB Pads?

CodeWhite

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Me again making more work for myself....

So I was doing some repair work on the main board of a WG K7000. I noticed that a couple of solder joints looked corroded and thought "what the hell might as well re-flow them while I have the board out." So I desoldered one of the joints and as soon as I did, the soldering pad on the circuit board came off. What are my options here? Can I buy replacement pads that adhere to the circuit board, or do I have to now run a jumper?

Talk about ruining a good day.
 
Me again making more work for myself....

So I was doing some repair work on the main board of a WG K7000. I noticed that a couple of solder joints looked corroded and thought "what the hell might as well re-flow them while I have the board out." So I desoldered one of the joints and as soon as I did, the soldering pad on the circuit board came off. What are my options here? Can I buy replacement pads that adhere to the circuit board, or do I have to now run a jumper?

Talk about ruining a good day.

Did you lift a trace? If so, post a nice pic of the board and folks can recommend how they would patch it. How you fix such a problem depends on what the board looks like where it occurred.

-VJ
 
it depends on whether the pad is still connected to the trace. if it is, then you can push the pad back down around the leg, and solder it on. The cap leg will hold the pad and trace down against the PCB.

If it's separated from the trace, then I'd just add a jumper - or bend the leg over to the next spot if it's close enough and it won't touch anything else not on that trace. While I'm sure you could get some trace tape and even pads somewhere, it's really not worth the effort.

Certain chassis - like the K7000 - seem to be more susceptible to this happening, though. They must not have used a good board manufacturer...
 
Thanks for the quick replies. Salvaging the pad is out of the question since when it fell off, I lost it :). If Im going to add a jumper wire, would I be correct if I did it in the way that I outlined in the photo? I appreciate you guys walking me through this, this is my first monitor repair :)
 

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Thanks for the quick replies. Salvaging the pad is out of the question since when it fell off, I lost it :). If Im going to add a jumper wire, would I be correct if I did it in the way that I outlined in the photo? I appreciate you guys walking me through this, this is my first monitor repair :)

Ok, next time look for the flower icon on your camera and flip it to macro mode for close ups. ;)

Anyway, if those three spots are supposed to be on the same trace, I would stick the cap leg through and bend it towards one of the other pads. Solder it in place and trim off the extra. Take the extra and solder it as a hard jumper between the bend you put in the leg to the third pad. That way you basically have the cap (or whatever component it was) soldered in place and an exposed wire jumper between all three points. No need to have an insulation or anything on it as long as you keep your work close to the PCB.

In other words you end up with metal following your red line in the image with three solder points.

-VJ
 
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