Hi @Kas_691,
Welcome to the Roku Community!
We appreciate you letting us know about your Roku device having a black screen but still can hear audio. We would be happy to look further into this issue but we will need more details. Can you please provide us with the following information:
We also recommend taking a look at our Support page to troubleshoot issues: What to do if you cannot see the picture from your Roku® streaming player on your TV | Official Roku...
Please keep us posted and we'll continue assisting you from there.
Thanks,
John