Lcd Monitor Description - Lenovo L222 Wide Service Manual

22" LCD Color Monitor

2. LCD Monitor Description

The LCD monitor will contain a main board, a power board and a key board which house the flat panel control logic,
brightness control logic and DDC.
The power board will provide AC to DC Inverter voltage to drive the backlight of panel and the main board chips
each voltage.
Power board
(Include: adapter, inverter)
AC-IN
100V-240V
Monitor Block Diagram
CCFL Drive.
Key Board
Flat Panel and
CCFL backlight
Main Board
HOST Computer
5
Lenovo L222 Wide
RS232 Connector
For white balance
adjustment in factory
mode
Video signal, DDC