Frequent dimming of light can damage the display screen & create irritation to your eyes as well. Well, who wants that? Definitely, Not me. Now, we shall not wait for our eyes to get damaged & quickly dive into today’s topic, i.e., “How to Fix Sony TV brightness keeps changing?”
Sony is one of the prominent & most-vendible brands in the market, doesn’t really need any introduction. They were developed in Japan.
Sony TVs are best known for their display picture, sound quality & obviously, the brand goodwill is just out there. From flat to curved screen Sony has literally endeavored to climb every mountain to meet the requirement of its customers.
Sony TVs have excellent motion handling capabilities, sharp upscaling & a high level of luminance. Hence, these features make it expensive yet most-vendible in the market.
As this article is going to be a bit about the Sony TVs picture getting dimmer then we should definitely take the basic meaning of the luminance into consideration.
A higher luminance means the TV is able to make the picture look brighter on the screen, which does really help with visibility in a bright room or make small highlights stand out in HDR.
But suppose one day it’s just frequently dimming when you are watching your TV & you just can’t get rid of it. It’s damn annoying, but hey, here we are to get your “Sony TV brightness keeps changing” issue fine-tuned. Let’s get started.
Why does my Sony TV keep changing brightness?
Reason 1: Switching Inputs
If you are experiencing a darker display screen, you must have switched the inputs.
Basically, Sony TVs have an ambient light sensor (also known as ECO Sensor on some older models) that determines (or we can say automatically adjusts) the screen’s brightness levels in response to the illumination levels in the room in order to reduce power consumption & to eliminate picture retention. It will act accordingly.
Most of the time, the ambient light sensor proves to be incapable to determine the light conditions of your room & make inappropriate adjustments.
These inappropriate adjustments can lead to the “Sony TV brightness keeps changing” issue.
Reason 2: Volume Buttons Adjusted
If you are noticing the screen of your Sony TV gets brighter in dark scenes when you press the volume button.
Upon pressing the volume control on a Sony TV, the screen will brighten or become lighter in dark scenes. During this process, a signal is conveyed that the volume is changing.
Reason 3: Dynamic Backlight Function
Another major reason for the screen appearing dim could be the Dynamic Backlight Control feature reducing the screen brightness when menu items (on-screen displays), volume, or subtitles are detected.
These were a few reasons causing the issue. Follow the below-mentioned steps in order to get rid of this issue. I hope it helps.
How to Fix Sony TV brightness keeps changing?
Method 1: Turn off the Light Sensor & Advanced Contrast Enhancer
Navigate to the Ambient light sensor, Light and Color sensor, or Light sensor & Advanced Contrast Enhancer settings. If the sensor setting is on, the brightness of the TV screen shall change to match the ambient lighting.
To turn it off, you must do the following:
- Press Action Menu on the remote or Navigate to the Home screen of your Sony TV using the supplied remote control.
- Select a movie or series if you have pressed the action menu button.
- Go to settings > Select Picture & Display > Choose Picture adjustments > turn off the light sensor.





