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

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This is a 42-inch Konka LCD TV. When booting up, there is no sound and the screen light does not flash. The power supply supports 5V, 12V, and 24V. The power-on signal is at 4.5V, the backlight turns on at 4.6V, and the brightness control is set to 2.2V. This model uses an EEFL lamp. It's quite expensive, and the repair rate for the high-voltage board is relatively high. A customer bought a boost board and LED strips for this unit. Here are some images of the internal components.