If the computer recognizes the device, then the problem probably resides with the LCD screen or backlight circuit. The good news is that nearly all backlight failures are repairable. Once the damaged component is identified it can simply be replaced. Last Update date : Dec 01. 2022. If your Samsung TV dims or brightens automatically, this isn’t a problem. It is a feature that Samsung has added intentionally. The Ambient Light Detection function (also called ECO Sensor on some older models) measures the light in the room and changes the screen brightness automatically to reduce power Dirty screen effect, or DSE to TV geeks, refers to a lack of uniformity in solid colors displayed on LED/LCD and plasma televisions. A vast majority of TV watchers will never notice this lack of uniformity, which is visible mostly in specific circumstances: during moments of bright colors or whites (such as during snowy white or desert scenes Direct-lit LED backlights are an offshoot of full-array backlighting, in that they use LEDs spread across the entire back panel of the TV. (The TV's spec page may just refer to these TVs as having Replacement Part for TV LED TV Bands for Samsung UN55NU7200 UN55NU7300 UN55NU7400 UN55NU710D 55" LED Bars Backlight Strips Line Rulers - (Type: 2PCS) Recommendations 8 Pcs Full TOT_55D2900 LED Backlight Strips Set 55D2900 A-1 55D2900 B-1 for TCL TV 55S405 55S403 55S401 D55A810 55US57 JL.D55051330-004ES-M 4C-LB5505 55S405TEAA 55S405TBCA To fix the TV backlight issue, follow these steps: Unscrew the back of the TV. The number of screws may vary depending on the TV model, but it should be between 15 to 20 screws. Now, remove the front housing and LED panel to access the backlight, then take out the bezel holding the backlight diffuser. w8T0QF.

samsung led tv backlight issues