Sections, we look at what sometimes goes wrong when such an error appears permanently. If eligible, on the next page you will have the opportunity to enhance your product’s coverage with a Sony protection plan. Fill out the information below to register your product. This is a complex piece of Japanese electronic engineering and it requires a fully qualified and experienced electronic engineer to repair it, therefore do not attempt to repair it. Limited warranty rights are not diminished if you do not complete and submit this registration form. However if the protect message keeps appearing all the time and without the speakers attached, then it is likely that there has been permanent damage to the internal components, and the unit will require repair. If the message goes away, then you need to make sure the speakers are not short and correct impedance. It worked great for about 3 months, then it continually goes into protect mode after about 20 minutes of use. My Sony STR-DE597 receiver is less than 6 months old. Let the amplifier cool for 15 minutes and then switch ON to see if the message still appears. I have looked through the threads about other peoples protect mode problems, and I found many helpful suggestions, but I still cant fix my problem. Unable to install a system software update that was copied to a USB memory device. A chime or tone sound is heard and the SONY logo appears every time the TV powers on. When you see this message, the first thing to do is to switch OFF the amplifier immediately, and disconnect the speakers from the terminals, at the amplifier end. How to perform a software update on your TV. The protection mechanism usually places the amplifier into protect mode when it detects a short, and during this time it prevents power to the amplifier circuitry, thereby preventing harm to the speakers and expensive amplifier components. You may also need to do a full factory reset, which is typically accomplished by pressing and holding the power button for 5 seconds and a screen will appear with something like 'Press Enter to. The most common form of short is usually user error when they short the speaker terminals, or overload it by attaching too many speakers. a software vulnerability in the jpay tablets they use for email, music. 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. User manual instruction guide for Tablet for Correctional Use JP6S JPay Inc. off for no apparent reason while flashing Protector in the display. Running the home audio device in a poorly ventilated cabinet can trigger the protection circuit. The purpose of the protect error is to protect the amplifier components from damage should a short circuit occur. Some speakers or the subwoofer may not output sound, depending on the sound field. The STR-K740P protect error usually occurs in the form of "PROTECT" flashing on the display, and this article looks into how to fix this error and bring the amplifier out of this mode.
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