Samsung NP305E7A motherboard

[tj8799]

I have a Samsung NP305E7A  with the numbers on my motherboard saying BA41-01822A

I got this laptop for repair it has a bad dsc jack  which like it is soldered in place so need the motherboard instead but on eBay the numbers BA41-01822A  don't show any results 

instead they bring up ones that are not a match is there any manual that has replaceable parts they will work in this laptop?   like they have for the HP Laptops called Maintenance and Service Guide

Thank you

Todd

[tj8799]

I have a update I had a person put the dc jack on but now I have no audio even thru it shows sounds bars moving like it would have sound is that a motherboard problem   still? 

[tj8799]

also the sound does not come out of the headphone jack eigher