The day before yesterday, I took over a Konka LCD TV model LED32F2000E that had a black screen. When I turned on the flashlight, I could faintly see the Konka logo on the screen, which suggested that the backlight might be the issue. I checked the backlight circuit and measured the LED power supply. Initially, it showed around 150V, but then it dropped to 110V almost instantly. Based on this, I suspected that one or more of the LED lamp beads were faulty. Since I didn't have the proper tools to replace individual LED beads, I decided to buy two LED light bars and replace them as a whole. After replacing them, the boot image appeared on the screen, which was a big relief. I took some photos during the process to document the steps and the results. The images show the initial black screen, the replacement process, and the final working state of the TV. It was a bit tricky, but the repair worked out well in the end.
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