When the TV goes on protection there are only two possible reasons. If you had an installer setup your system, you can contact them for assistance and any associated costs that may apply to setup the receiver again would be the responsibility of the owner. The flashing light indicates a diagnostic state called protection. You may want to mark down the settings before resetting your receiver to aid in the setup process. Please note, this will erase all setup configurations in the system and require the system to be setup again. Easy Common Fix for Sony TVs Bravia KDL- distorted lines in picture screen clicks on & off then red LED blink / flash 12 or 14 times for KDL-52v4100, KDL-52w.
The "Initialization of the Microprocessor" or "reset" procedure can be found in your owner's manual on current model AVR product. If the impedance of any of the speakers is below the rated impedance range indicated on the rear of the home audio device next to the speaker connections, the home audio device may enter the PROTECT mode. If after checking all your connections, the Protection indicator stays lit, you may need to "initialize the microprocessor" (see the FAQ on that topic) or take your receiver to an authorized repair center for a diagnostic. Running the home audio device in a poorly ventilated cabinet can trigger the protection circuit. Connecting them one by one and retesting should allow you to find the problem speaker or connection. If the receiver's protection light goes off, then there would still seem to be a problem with one channel's speaker wires or speakers. If the protection light goes on immediately after you turn on the receiver, disconnect the speaker wires at the receiver side and retest. Before turning the power back on, all speaker wire connections should be checked for their integrity at the receiver side and at the speaker side. And although it doesn’t come with major upgrades over the previous-gen headphone, Sony did make some incremental improvements in noise cancellation and audio quality.My favorite features being Multi-device connectivity and Wear detection sensor. If the protection light came on due to a speaker wire short, low impedance condition or a bad speaker, the receiver's power will need to be turned off to reset it. Sony recently launched the much-anticipated noise-canceling headphones the WH-1000XM4. In thermal cases, the circuitry will automatically reset after a few minutes of cool down and the Protection indicator will go out and normal operation will resume. More current models will indicate a flashing red light on the Standby LED when a Protection circuit trips. On older model AVRs you may see the word "Protect" on the receiver's display.
In addition to a removable faceplate to protect your settings, the new ES receivers feature enhanced compatibility with leading control systems, intuitive web-based configurability, native HDR and HDCP 2.2 support. This can happen if there’s a dead short in a speaker wire or if you’re using very low impedance loudspeakers at high volume for an extended length of time. ES Receivers offer a suite of new integration features while delivering the superior audio and video quality you expect from Sony. The "Protection" light comes on when the receiver’s current sensing and thermal monitors detect some unusual operating condition that, if left unchecked, might damage the amplifier.