My music system is not playing

There is no sound coming from my audio system. I am looking for an experienced freelancer to help me troubleshoot the issue. The freelancer should have a deep understanding of audio players, their functions, and settings. Additionally, familiarity with multiple music playing formats (CD, Record Deck player and Bluetooth connectivity) would be good. The goal of this project is to identify the specific cause of my problem and to provide a comprehensive solution to the issue. The ideal freelancer should be organized, efficient, and possess exceptional problem-solving skills. If you believe you can help me get my music back up and running, please let me know. I am seeking a professional and cost-effective approach. I'm wondering on this system do the valves need replacing because everything else switches on. Many thanks Richard