Dead ID Core 20 May be faulty Jack Socket ?

[Scamp21]

Hello this is my first post,
My amp toppled forward off of a peavey blazer amp the other night while the jack plug was still in,
Now I think it fell forwards on the jack plug, I picked it up and all the lights are working correctly, but there is no sound coming from the amp,
I am wondering if the jack plug socket has been damaged and how do I go about replacing it,
Any advice would be most welcome
Thanks
Scamp