How to repair the LCD TV by modifying the light bar current?

How to repair the LCD TV by modifying the light bar current?

The LCD TV is repaired, there is sound but no image when starting up, the backlight is not bright, it is determined that the back backlight is broken, and the backlight strip is replaced, so turn on the LCD TV for repair. After replacing the strip, I am afraid that the current of the strip will be too large and it will not take long If the time is still broken, then change the current of the high-voltage board circuit.

This LCD TV is 38V parallel with 3 light bars 6V 6leds, and the output is about 39V. Generally, the voltage and current of the original board are slightly larger and the brightness is bright.

After repairing/finding the negative feedback current resistance of the light bar, 1R201R20 is a total of 4 feedback resistors, 2 must be removed, so I removed two resistors, so that the current is reduced, and the voltage is also reduced to 35.5V, so that the light bar can be used It won't be bad for a long time.