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LCD MONITOR DESCRIPTION
The LCD monitor contains main-board, Inverter module, keyboard, audio module,
USB-hub module and External Adapter.
The main-board controls all logic signals such as panel control logic, backlight
control logic, ...etc.
The Inverter module will drive the backlight of panel.
The Adapter supplies power to the LCD monitor.
Analog RGB
DDC-chip
DDC-chip
DVI input
Oscillator 24
Keyboard module
EXTERNAL-ADAPTER
DC 12V 5Amp
Main-board Block diagram
Gm5020 (U600)
Data Digital RGB
Panel Control Signal:
Phs, Pvs, PclkA/B,
Pdispe
Communication signal:
Hclk, Hfs, Hdata0
MCU (U502)
Audio module
(optional)
Frame store
LVDS chip
Panel-Power Control
(U203)
Crystal 24 MHz
USB hub module
(optional)
3
Panel Power 5V
INVERTER
module
PANEL
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Troubleshooting
