If your Sony surround sound receiver is acting strange, then this video may help you fix that problem. Persistent issues like the sound randomly cutting out, volume dropping, no sound at all, popping in the speakers, or HDMI inputs not working may be resolved by procedures described in this video. Sony receivers at Amazon - https://amzn.to/3qTT89J Here's a sampling of Sony receivers that this video will help with: STR-DH100 STR-DH190 STR-DH540 STR-DH550 STR-DH590 STR-DH750 STR-DH790 STR-DH1080 Cinematic Sound at Home: Enjoy your favorite movies, TV shows and more with theater like sound in the comfort of your home Virtual Front Surround: S Force PRO delivers virtual surround sound with only a 2 speaker setup Smart Connectivity: Stream music and use Bluetooth Standby turn on the receiver from your phone Multi Function System: Enjoy a Multi Channel Stereo Setup, FM Radio Tuner and 1/4 Inches Headphone Jack Dynamic Setup: 4 Stereo Rca Audio Inputs and 2 Digital Audio Outputs (1 Optical and 1 Coaxial) In the box: Receivers include a calibration microphone, FM wire antenna, remote control, batteries