Compaq Flat Panel Monitor tft5017m, Service Manual

Page: 5 / 118

4
1-2 LCD MONITOR DESCRIPTION
The LCD MONITOR will contain an main board, an inverter board, a power switch board and a keyboard.
The main board will house the flat panel control logic, brightness control logic, DDC and DC-DC conversion
to supply the appropriate power to the whole board and LCD panel, and transmitting TTL level signals into
LCD Module to drive the LCD display circuit.
The inverter board will drive the two CCFLs (Cold Cathode Fluorescent Tube).
The switching power board will provides the power ON/OFF control over the whole monitor and control for
DPMS LED indicator.
The function keyboard will provides the OSD control signal to the Main Board.
Monitor Block Diagram
1-3 Interface Connectors
(A) Power Cable
(B) Video Signal Connectors and Cable
Inverter Flat Panel
Main Board
Keyboard
ADAPTER
HOST Computer
CCFT Drive.
AC-IN
Video signal, DDC