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Name and purpose for plug from top deck to mother board wires next to ribbon inputs from velco battery housing on sound bar had black screen blink caps now black with solid blue caps and AC/DC jack.I know mechanics of it not specific terms plug the problem with black screen

Hi @greendevl420 Here’s the maintenance and service guide for the laptop. Check through the guide to see if you can spot the component that you’re interested in. If you find it the part number should also be listed in the manual. See p.16 onwards Search online using the part number only to find suppliers of the part that suit you

That connector is for the USB board on the optical drive side if it’s the one I’m thinking you’re talking about. I know because I had one and it’s a common failure point where it kills USB devices when the regulators on the motherboard fail - or at least just on the 219-WM. If you are just changing the jack, ignore it but if you are removing the motherboard you need to disconnect it.

The other one that’s near the power button is for the speakers. I do not have a photo for it, but I can tell from the service manual and experience.