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The easiest way to solder multi pin connector?

 

Hello,
I am going to move 2 connectors from A row to B row as shown in the picture. 1 connector has 3 pins, the other has 4 pins.


The B row already has some lead there (no pin or connectors attached).

Could anyone help with my questions:
- what is a good and clean way to desolder pins (7 pins in total) in A row. I know that desoldering braid and flux can help. Is there a better way?
- after this desoldering, how should I solder 2 connectors (1 connector has 3 pins, the other has 4 pins) to row B using the existing lead on the PCB?

Thank you.

Ag insider logo xs@2xquanghuy147

Showing 1 response by oldhvymec

oldhvymec
5,101 posts
 

https://www.parts-express.com/Desoldering-Pump-370-030

Heat, de-solder and suck the old solder off.

I use a sharp round pick after I pull the solder off. I insert it and make sure the hole is de-burred. Clean the pins or wires with a little isopropyl, insert them through the cleaned up holes and little dab of flux and solder. Clean afterwards with isopropyl alcohol. Check your work. If there is any issues, repeat the process. 

It will take longer to heat up the soldering iron than to do the work. :-)

Regards

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