- 55 -6.2 Circuit Operation TheoryI. Introduction:The P244W is a 24” W (1920x1080), LCD type is TN+Film and Normally White, 16.7Mcolors(R, G, B 6-bit data + Hi-FRC data) TFT LCD with HDCP support monitor. It’s have triple (D-SUB and 2 HDMI) interface LCD monitor with a 15 pins D-sub signal cable. It’s compliant withVESA specification to offer a smart power management and power saving function. It also offersOSD menu for users to control the adjustable items and get some information about this monitor.The best function is to offer users an easy method to make Auto Adjustment items well done justby pressing hot key, we called it “Auto” which can manual controlled items.P244W also offer DDC/CI function to meet VESA standard.II. Block diagramThe P44W consists of a LCD module with 4 lamps, a power board, a control board,and an interface board. The block diagram is shown as below.Power BoardAC inD_SUBHDMI1 &2Total 4 Lamps backlighte Auto Menu Left Right Power(Touch sensor Ctrl board)Interface BD30PinFFCTotal 4 Lamps backlightLine out