How To Fix Hisense TV Backlight Turns Off After Few Seconds But Sound from www.youtube.com
Introduction
Hisense TVs have become increasingly popular due to their affordability and great features. However, like any other electronic device, they are not immune to problems. One of the common issues that Hisense TV owners face is backlight failure. In this article, we will cover how to repair backlight on Hisense TV in 2023.
What is Backlight?
Before diving into the repair process, it's essential to understand what backlight is. Backlight is the light source behind your TV's screen that illuminates the picture. Without backlight, your TV's screen would be dark and unviewable.
Common Causes of Backlight Failure
There are several reasons why backlight on a Hisense TV may fail, including:
1. Burnt-out LEDs
LEDs are the most common type of backlight used in modern TVs. If one or more LEDs burn out, it can cause uneven lighting, dark spots, or complete failure of the backlight.
2. Faulty Power Supply
A faulty power supply can cause the backlight to fail. If the power supply is not providing enough voltage, the backlight may not turn on.
3. Damaged Inverter Board
The inverter board is responsible for converting the DC power supply into AC power, which is required to power the backlight. If the inverter board is damaged, the backlight may not turn on.
Steps to Repair Backlight on Hisense TV
Step 1: Identify the Problem
The first step in repairing backlight on Hisense TV is to identify the problem. Check if the TV has power and the standby light is on. If the standby light is on, but the screen is dark, it's likely a backlight problem.
Step 2: Open the TV
To access the backlight, you need to open the TV. You may need a screwdriver to remove the back panel of the TV.
Step 3: Check the LEDs
Check the LEDs for any visible damage or burnout. Replace any burnt-out LEDs with new ones.
Step 4: Check the Power Supply
Use a multimeter to check the voltage output of the power supply. If the voltage is low, replace the power supply.
Step 5: Check the Inverter Board
Use a multimeter to check the voltage output of the inverter board. If the voltage is low or nonexistent, replace the inverter board.
Step 6: Reassemble the TV
After completing the repair, reassemble the TV and test it to ensure the backlight is working correctly.
Conclusion
Repairing backlight on Hisense TV is not as challenging as it may seem. By following the steps outlined in this article, you can save money and fix the problem yourself. However, if you're not comfortable doing it yourself, it's always best to seek professional help.
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