Product Feature; Lcd Monitor Description - HP L1902 Service Manual

1.PRODUCT FEATURE

48.18cm(19") a-si TFT Active matrix LCD panel, 0.294mm dot pitch
Scalar chipset : gmZAN3SL ( or MST9111B)
Microprocessor controlled scan technology
16 factory presets, 20 new modes
Vertical refresh rate 50Hz to 75Hz; Horizontal frequency 30kHz to 83kHz
Resolutions: 640 x 480 up to 1280 x 1024
Power Internal AC100V-240V (+/-10%)
Tilt -5° to 20°
CE mark
TCO 03 mark
VESA DPMS compliant
VESA DDC2B compliant and DDC/CI interface.

2. LCD MONITOR DESCRIPTION

The LCD Monitor will contain main board, power board, key board and 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
AC-IN
100V-240V
Monitor Block Diagram
CCFT Drive.
Keyboard
Page 5 of 69
Flat Panel and
CCFL backlight
Main Board
HOST Computer
HP L1902 Service Manual
RS232 Connector
For white balance
adjustment in
factory mode
Video signal, DDC