Lcd Monitor Description - Optima L903A Service Manual

19" Wide LCD Color Monitor

2. LCD Monitor Description

The LCD MONITOR will contain a main board, a power board, an audio 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.
Audio board
Flat Panel and
CCFL backlight
Main board
Key board
HOST Computer
5
Optima L903A
RS232 Connector
For white balance
adjustment in factory
mode
Video signal, DDC