|Re: Surface soldered chips (HP71B)|
Message #2 Posted by Alejandro Paz (Germany) on 22 Nov 2010, 12:02 p.m.,
in response to message #1 by Alberto Fenini
There are several methods depending on the tools you have, the people you know and the utility of the chips you are about to desolder. This info is provided "as-is" without any explicit or implicit warranty or fitness, use at your own risk :).
To not burn the board and other components you need to have some experience or know someone who does :), read below, please.
If you are comfortable using a soldering iron and/or a hot air desoldering station, then it may be for you. If you don't, there are people who may help, maybe a cell-phone repair shop or similar. Someone you know may be of help.
If you _do not_ need the chips you are about to desolder, the easiest is to cut (with a sharp-blade knife like a swiss-army one) the leads and then with the soldering iron and small pliers you remove the leads carefully.
If you have the equipement but you are unsure, there are videos in youtube on how to rework with SMD parts, watch them and then practice with an old motherboard and so on before you touch the 71B.