How to replace the LCD TV LED backlight Strips beads?

How to replace the LCD TV backlight lamp beads?

A brand 32-inch LCD TV has sound but no backlight. The inspection found that the display is normal and there is no backlight. The two sets of backlight bars of the machine are independent, and then connected in series to one set of power supplies. One set is normal and the other is not illuminated .

Disassemble the screen, carefully disassemble the gusset, LCD screen, and astigmatism paper in order, and you can see the backlight lamp beads. One by one measurement found that only one lamp bead was open. During repeated testing, the reverse voltage was too high and breakdown For the other lamp bead, two LED lamp beads must be replaced. After confirming that the lamp bead voltage is four o’clock volts, remove the two lamp beads from the obsolete LCD TV. The replacement is successful.

The process is to heat the light bar on a gas stove. When the temperature reaches a suitable temperature, you can remove the diffuser, then remove the lamp beads, install the lamp beads on the light bar to be installed in the same way, and check that the light is normal. Now that the screen is assembled, you must assemble it carefully so as not to damage the LCD screen. The effect pictures before and after installation.