Samsung DP500A2DK01UB User Manual

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Chapter 3.  
Using the computer
LCD Instruction
Samsung Computer’s Defective LCD pixel management 
standard
Although Samsung Electronics, Co., Ltd. observes strict 
quality and confidence specifications for LCD manufacturing, 
the company must inevitably allow a few defective cells in 
panels due to a technological limitation of the manufacturing 
process.
Therefore Samsung observes and manages the following dot 
principles:
- Bright dot : 2 or less 
- Black dot  : 4 or less 
- Combination of Bright and Dark : 4 or less
Instructions for Cleaning the LCD
Clean the LCD panel with a soft cloth lightly moistened with 
computer cleansing detergent moving in one direction. 
Cleaning the LCD panel with excessive force can damage the 
LCD.