The LCD32K73 has no picture, the backlight is not bright, and the screen has a faint image by hand. Open the back cover to check the voltage of each level is normal, use the test pen to contact the lamp plug, there is a fire phenomenon, the high voltage is normal, there is a problem with the lamp, and when the data of the high voltage plate is measured, the high voltage is gone, and the two to the step-up transformer The current limiting resistor is also blown out, and the high voltage board is determined to be shorted. It is necessary to be careful when charging the circuit board, otherwise the fault will be expanded. Open the screen first, be careful!
After opening, I found that the lamp was broken. The total cost of repairing was not low. Simply change it to LED. The effect is good and energy saving. Start!
It is very easy to open when it is installed. It is much more difficult to install the machine. Take it lightly and carefully, be careful that the side strips are ripped off, the screen should be flat, and be careful!
Ok, I wish you all the best in the new year! Good luck!
10.1 Inch Laptop,win10,win11
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