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Old February 10, 2009, 06:23 PM
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mklym mklym is offline
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Join Date: Nov 2008
Location: Central Alberta
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If your soldering tip/iron is clean and properly tinned, then all the flux you need is on the tip already. Clean and re-tin often. Properly tinned, you should need no more than a second or two to absorb the old solder. Excessive heat can ruin a multi-layer PCB, like a motherboard. Same as when you go to solder in the new jack. With a properly cleaned and tinned tip, put the tip on the point where the PCB and the jack lead meet, then apply solder to the tip, moving to the lead in one motion. One or two seconds and you should be done one connection. Do the same for the rest. And use small diameter, flux core electronics solder (yes, it makes a difference).

Good luck. :)
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