Acer AL2002 AL2002 Service Guide - Page 4

3 2.2 Test Equipment Go to cover page The reference signal source is a calibrated Chroma 2326 or Quantum 801GD video generator. The use of other signal generators during qualification and production is acceptable provided the product complies with this specification. 3. ELECTRICAL RELATED INFORMATION: This section describes the electrical requirement of the monitor. The block diagram in Figure 1 illustrates the various electrical sub-system. 3.1. Product Block Diagram The LCD monitor will contain an interface board, a Power / Inverter board, and a function key board. The interface block will house the flat panel control logic, brightness control logic, and DC-DC conversion to supply the appropriate power to the whole board and LCD panel, and transmitting LVDS signals into LCD Module to drive the LCD display circuit. The inverter block will drive the four dual CCFLs (Cold Cathode fluorescent Tube). The power block will provide the DC power to interface board and LCD panel. The function key block will provides the OSD control signal, power ON/OFF and LED indicator to the interface board.