I've been seeing a lot of these lately and I don't know if it's the marketing or this model and series is just really problematic to dc jack repair.
It came in with the classic symptom of being able to wiggle the adapter to get the laptop to power on/charge.
The 7000 series use a six pin, 2.5mm style dc jack.
Once I got it all torn down the volatge pin was slightly burnt which explains the wiggle effect. When I got a new dc jack soldered on the laptop is now powering on and charging the battery again.
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