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Post by revheadkev on Sept 26, 2018 8:34:12 GMT -5
I am trying to unsolder the 4-pole sockets on the Mini-Box USB-DCDC power supply so that I can solder on new sockets at 90deg. I'm doing this so the wires from the plugs do not need to bend at such a sharp 90deg to the case which has already caused one of the wires to come free of the crimped pin.
The problem I have is that my soldering iron does not seem to be heating up the solder enough to free the pin from the circuitboard. I'm wondering if it is the solder type used on the circuitboard when it was wave soldered or if the amount of heat from my soldering iron is not enough. I have an old Weller 48W iron with a new tip.
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Post by jhornbr225 on Sept 26, 2018 10:13:20 GMT -5
My Weller is a 40W, and I've never had any problem heating anything up. It may take a little longer. Have you tried feeding some fresh solder onto the joint? If I am going to remove a part from a board, I always heat it up and apply some fresh solder. That will help transfer heat and perhaps move some of the oxidation to the surface. I then go at it with the solder sucker. Sometimes I'll repeat that process to get some more solder out.
Pins and plugs sometimes have larger traces which pull heat away from your work area. If the traces get damaged, you can most likely repair them with some wire.
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