When it comes to connectors to be soldered on the motherboard, referring to the iPhone, I'm always a little skeptical about success of the operation, either by luck or because sometimes it can happen that the problem is not the connector itself, but in some damaged components around it.
In this case I was presented with a motherboard of a 3G on which the owner had tried to repair the connector "headphone jack (I'll call it, colleagues at the motherboard even though all the buttons on the side of the iPhone, as well as the headphone jack). The repair was not successful in their own way:
In essence, apart from the actual damage to the connector on the motherboard had jumped the track (on layby and copper) with the concern that he had damaged some of the five resistance arranged vertically on the left of the connector.
Schematically the damage:
The first difficulty to repair of this type is first of all in very poor availability of the connector in question. While other connectors (the infamous FPC, which manages screen brightness and other little things, the display and touch) are readily available at costs ranging from 7 to 12 Euro, on average, this just can not find it easy .
The second difficulty lies in removing the broken connector without damaging the tracks: we need a soldering iron hot air (or an infrared station, costing a few thousand euros), a steady hand and precision, to prevent neighbors based components such as butter.
accomplished the same operation, it is necessary clean work area at best, removing the desoldering braid (of good quality, medium quality or drowned in flux, but I highly recommend the first) the whole pond and rubbing a cotton swab moistened with isopropyl alcohol.
A connector unplugged, check with a tester to the resistors side tested their operation.
At this point, with the pitches of copper very clean, we are ready to file new tin no-clean flux applied with a needle, tin lead size and 0.3mm fine soldering tip. In this case, when assembled, the connector, then I had to make a wire-wrap connection type between a foot and a point on the motherboard (in this case one of the resistors above), since the track was blown. This connection is made with wire diameter of about one-tenth of a millimeter or even less in this case because the wire in question is part of a strand wire of a headset Sennheiser discontinued (I think it is an AWG 38/39), covered insulating material that is to fall away with the tip of the welder. This ensures the electrical insulation necessary since it is located above the ground plane of the phone.
Here is the finished work:
will not be aesthetically in most, because of the link wire-wrap, but at least it's running at 100%, allowing you to retrieve a card in excellent condition.
Enjoy!
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