Service manual

15” LCD Color Monitor Sharp LL-153A
5
2. LCD Monitor Description
The LCD MONITOR will contain a main board, a power board and a keypad 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.
AC-IN
100V-240V
PWPC board
(
Include: ada
p
ter, inverter
)
Flat Panel and
CCFL backlight
main board
RS232 Connector
For white balance
adjustment in factory
mode
HOST Computer
CCFL Drive.
Video signal, DDC
Monitor Block Diagram
Keyboard