That the jack (or plug socket, whatever you want) of a
laptop can be damaged , due to wear or mechanical stress, is not very
infrequent, but what happens to Asus notebooks of the X53, X54, X71 series etc.
it really looks like an epidemic ... a real curse that has fallen on Asus.
In reality, the problem of the breakdown of the power plug
in these PCs has nothing esoteric, but is the cause of a trivial motherboard
design error: in fact, the failure that occurs, when in these computers while
inserting the plug into the socket jack the power does not come and the battery
does not charge(the computer works only on battery power, as long as it is
charged ...) is the fracture of the central contact (the one that carries the
positive of the incoming power from the AC / DC of the laptop) of the plug
connector. And this applies to 100% of the notebooks that arrived in the laboratory.
This happens not due to a design defect in the outlet(this
problem would be easily solved by changing the component supplier), but because
this jack, like all those mounted directly on the motherboard (on some PCs the
jack is fixed to the body ...) is welded to it and its stability depends on the
strength of the solder , in turn linked to the number of anchor points and
their arrangement with respect to the effort determined by the insertion and
extraction of the plug of the power supply.
In the Asus we are talking about, the plug socket has four
points of support , and so far it is perfect; the fact is that the two on one
side are soldered to a "tongue" of the PCB a few millimeters wide,
left alone to face the effort imposed by the insertion and extraction of the
plug. The result is that this bends every time, causing the jack to twist, and
for a long time (not so much, because the fault occurs quickly ...) going the
central contact, subjected to bending and twisting, breaks.
This fault is difficult to detect with the naked eye because
the fracture occurs where the contact comes out of the body of the jack socket,
but it becomes evident by looking with a magnifying glass or trying continuity
with a tester and flexing the jack, obviously after opening the notebook.
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