Repair shops for digital camera?

I bought a Sony Cybershot DSC-T70 off of eBay for a rather hefty price, but the camera vibrates when turned on. I tried taking out the battery and putting it back in but it’s still doing it. 😭

Where can I go to get it repaired for a reasonable price? I’m debating on returning it to the original seller but I happen to really like the photos on this camera; I just hate the constant shaking.