For sometime now, my fellow guitarist in our band has been complaining about his speaker jack. So one night while at our rehearsal space, I decided to take a look at it. When I took it out i discovered that a couple of the terminals were broken off. I assume from years of being knocked around and subjected to tremendous vibrations from the music we play. After looking at it for a little bit, and realizing I had no viable replacement, I came up with a quick solution.
Step 1: Tools Needed.
needle nose pliers
some thin copper wire
some standard gauge electrical solid core copper wire
Step 2: Locate the Problem Area
Step 3: Bend the Remaining Terminals
Step 5: Cut Your "replacement" Terminal
Step 7: Twist
Step 8: Clip the Excess
Step 9: Solder
I wasn't able to get a good picture of the soldering action because I don't have enough hands, but, basically you need to get a good bead of solder all the way around the thick wire and broken terminal. This will ensure that you have a good electronic connection, as well as strength for this piece of wire to act as a new lead.
To anyone new to soldering...it helps to clean the parts if possible, and to thoroughly heat the metal that you're wanting the solder to stick to. If you just melt the solder with the iron and drip it onto the copper, you're not accomplishing anything. The heated copper will cause the solder to flow around it and make a strong bond when it cools. It really takes a lot of practice to get good at soldering components. What I usually do is hold the iron to the metal that I want to solder, and kind of move it around until the whole wire is heated. Then I melt some solder onto it, without removing the iron, and then just move the iron around a bit until the solder flows freely and evenly around the wire.
If you end up with a big lump of solder hanging down, just heat it back up and suck it off with a de-soldering bulb or wick. It doesn't take a tremendous amount of solder to hold electronic wiring in place, and most times less is more.