Although the provided link is specifically for PC’s, you can still apply the same concept to your troubleshooting steps. Here is just a summary of what could be the problem.

“For external speakers not working in Windows 10, there are several reasons causing this problem. The speakers could be damaged, the sound could be muted, the audio driver could be faulty and so forth. If you meet this problem, follow tips here to troubleshoot the problem and find the solution that works for you.”

Check out this link for more details

https://www.drivereasy.com/knowledge/sol...