Monitor Specifications; Lcd Monitor Description - AOC LM2028 Service Manual

1. MONITOR SPECIFICATIONS

510 mm (20.1") a-si TFT Active matrix LCD panel, 0.255 mm dot pitch.
Microprocessor controlled scan technology
19 factory modes, 19 new modes
Vertical refresh rate 55Hz to 75 Hz
Horizontal frequency 30kHz to 80kHz
Resolutions: 640 x 480 up to 1600 x 1200 @ 60Hz
Universal power supply designed for worldwide application
CE mark
TCO99 mark
VESA DPMS compliant
VESA DDC2B compliant

2. LCD MONITOR DESCRIPTION

The LCD MONITOR will contain a main board, an inverter/power board, a keypad board which houses 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: inverter，adapter)
AC-IN
100V-240V
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Monitor Block Diagram
CCFL Drive.
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Flat Panel and
CCFL backlight
Main Board
Keyboard
HOST Computer
Page 4 of 66
AOC LM2028
RS232 Connector
For white balance
adjustment in factory
mode
Video signal, DDC