LG Warranty
LG Monitor LCD

Description of equipment:

Model: LG LCD W2452TX
Purchase Date: 11.12.2009

Description of the problem:

With brightness set at 100% of the monitor is working properly. Is silent. However, when trying to reduce brightness while 1% of the housing mined loud hum. The frequency of sound changes along with the degree of change in the backlight sensor. However, each time setting other than 100% of the sound is clearly audible. Quietly breaks through the sound issued by the laptop, even when working hard.

The action taken:

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