The Persistent Whistle: Troubleshooting Your TV’s Audio Anomaly


The squeal is consistent across different content and devices, and it persists even when the TV is muted. It seems to originate from the back of the TV, but I’m not certain. Interestingly, the noise ceases when I access the TV’s settings menu, only to resume once I exit. Could this be indicative of a particular problem? Any advice or insights would be greatly appreciated.”


If you’ve encountered a persistent high-pitched squeal from your Samsung QN75Q80TAFXZA TV, you’re likely seeking answers and solutions. This issue, characterized by a noise that’s audible over different content and unaffected by the TV’s volume settings, can be both puzzling and frustrating. The fact that the noise stops when you enter the settings menu but resumes upon exit is particularly intriguing.

Possible Causes

1. Electrical Interference:

The noise could be due to electrical interference within the TV’s components or from external devices connected to the TV. Interference can create a range of auditory anomalies, including high-pitched sounds.

2. Hardware Malfunction:

A malfunctioning component in the TV’s hardware, such as the power supply or backlight inverter, could emit a high-frequency sound. These components are often located at the back of the TV, which aligns with your observation.

3. Software Glitch:

Since the noise ceases when accessing the settings, it might indicate a software-related issue. The TV’s firmware controls various functions, and a glitch could inadvertently activate components that generate the squeal.

Troubleshooting Steps

1. Check for External Causes:

Disconnect all external devices (like the Apple TV and soundbar) to rule out interference. If the noise stops, reconnect devices one by one to identify the culprit.

2. Perform a Power Cycle:

Unplug the TV from the power source for a few minutes, then plug it back in. This can reset the TV’s internal components and potentially resolve the issue.

3. Update Firmware:

Ensure your TV’s firmware is up to date. Manufacturers often release updates that fix known bugs and improve performance.

4. Factory Reset:

As a last resort, consider performing a factory reset. This will revert all settings to their original state but be aware that you’ll lose any custom settings.

Seeking Professional Help

If the above steps don’t resolve the issue, it’s advisable to contact Samsung support or a professional technician. They can provide a more thorough diagnosis and, if necessary, repair any faulty components.


The high-pitched squeal from your Samsung TV is likely a symptom of an underlying issue that requires attention. By methodically troubleshooting and seeking expert advice, you can restore your TV to its optimal performance and enjoy a noise-free viewing experience. Remember, when dealing with persistent and unexplained noises from electronic devices, it’s always best to proceed with caution and consult with professionals if needed.

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