CHAPTER 3-CIRCUIT THEORY
1. Monitor Block Diagram
The LCD Monitor contains an interface board, and inverter/power/Audio board, keypad board and flat panel.
In Inverter/power/Audio board, power section supplies +14V & +5V for Inverter/Audio and Interface board
used. The inverter section drives the backlight of panel and the DC-DC conversion. The Audio section
drives speaker (2 x1W).
(Including AC/DC Power
Supply and Audio)
Flat panel (LVDS interface) and CCFL(Including
Interface Board (VGA input)
(VGA signal input and DDC)