Is the audio jack of a T440p directly on the motherboard?

Feel free to skip down to the bold text if you don't want to read three paragraphs of self-pity ranting. ;)

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So I was dumb and stuck a couple things into the audio jack that probably shouldn't have gone there--specifically, one of those 6.5mm to 3.5mm audio converters. It was fine for a while, but over the months I think I bumped into the converter a few times (they're so long), and may have displaced some of the contacts on the laptop's audio jack.

So, things kept rolling okay for a while, but sometimes I'd need to jiggle (in much the same way you might jiggle a q-tip around your ear to clean/scratch it) the audio converter inside the audio jack for the computer to detect its presence and route audio through it.

Eventually this was too much of a pain to keep up, so I bought a USB-based audio system that was much easier to work with. Unfortunately, when I later tried plugging a simple 3.5mm headphone into the system (Apple earbuds, as it were), nothing happened... the computer refuses to acknowledge their presence. As luck would have it, the same issue occurred with a couple other pairs of earbuds I could get my hands on, and all the earbuds work fine with my phone.

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Anyway, long story short, I tried to see what repairs could fix a hardware-broken audio jack. Based on the T440p schematic here, it seems that the audio jack is actually on the motherboard (part 21, audio jack on the top-left side).

After looking up the part number for my laptop here,, I found their listing for the motherboard here, a nice welcoming $400.

So, to get a question: Is the audio jack truly on the motherboard? Is it even possible to replace just the audio jack without damaging the rest of the motherboard?

In the fantasy land where I have a few hundred dollars to spare, would a motherboard replacement be doable by lenovo or me? (out of warranty, so I suspect the answers are no and no, haha)