Share 42 inch Konka LCD TV LCD to change LED diagram - appliance repair - Huaqiang Electronic Network

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42 inch Konka LCD. There is no sound in the boot, and the screen light does not flash. 5V, 12V, 24V, both. The power-on signal is 4.5V, the backlight is turned on 4.6V, and the brightness is adjusted to 2.2V. This machine uses an EEFL lamp. There is a lot of money, and the rate of repairing the high-voltage board is a bit high. A treasure bought a boost board and LED strips. Open the next illustration.