Traditional Culture Encyclopedia - Traditional festivals - There is a very thick rubber sheet behind the backlight of the LCD TV, one side is very rough and the other side is very detailed, please ask is the rough
There is a very thick rubber sheet behind the backlight of the LCD TV, one side is very rough and the other side is very detailed, please ask is the rough
First of all, we need to determine the model of the damaged lamp bead, whether it is a convex or concave lens, and how many volts (commonly used 3V and 6V). Or need to replace the whole strip, but also pay attention to the number of lamp beads on the strip (a few lamps and a few volts) and the length of the strip, to figure out the series-parallel relationship between the lamp beads and the strip, and the rated operating current and voltage of the strip at both ends (such as SMD LED strip).
If the lamp bead is damaged less, you can replace it with a single one, and use the convex lens for the convex lens, and use the concave lens for the concave lens. In principle: convex lens can be used to replace the concave lens, concave lens try not to replace the convex lens. Because of the concave lens if the convex lens instead, the screen will appear on the strong spot, there will be uneven brightness of the screen, affecting the visual experience.
If the lamp beads are damaged more, it is still recommended to buy a complete set of original light bar replacement.
Secondly, when replacing the backlight strip, you also need to pay attention to the operating voltage of the backlight source.
If the replacement is a complete set of original light bar, this does not need how to change the technology can be installed.
If the replacement of the light bar is a universal universal, figure out the series-parallel relationship, but also pay attention to the replacement of the light bar's rated operating voltage. If the original driver board output backlight voltage is higher than the replacement of the new strip on the total rated voltage, in order to extend the service life of the strip, you should try to change the technology to reduce the output voltage of the constant current board, so as to avoid the replacement of the new strip, with a period of time and then burned out.
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