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DESCRIPTION OF BLOCK DIAGRAM
1. Video Controller Part.
This part amplifies the level of video signal for the digital conversion and converts from the analog video signal to the
digital video signal using a pixel clock.
The pixel clock for each mode is generated by the PLL.
The range of the pixel clock is from 28MHz to 85MHz in E1942S case
This part consists of the Scaler, ADC convertor, TMDS receiver and LVDS transmitter.
The Scaler gets the video signal converted analog to digital, interpolates input to 1366 X
768 resolution signal and outputs 8-bit R, G, B signal to transmitter.
2. Power Part.
TThis part consists of one regulator convert power.From 19V to 5V.19V is provided by adapter.
5V is provided for LCD panel .
Also, 5V is converted 3.3V by regulator.Converted Power is provided for IC in the main board.
3. MICOM Part.
This part is include video controller part. And this part consists of Flash IC which stores control data and the Micom.
The Micom distinguishes polarity and frequency of the H/V sync are supplied from signal cable.
The controlled data of each modes is stored in.
Copyright
Only for training and service purposes
LGE Internal Use Only
2010 LG Electronics. Inc. All right reserved.
Boost converter of LED block converters 19V to AUO M185XW01 VF is 34V ,CMI M185BGE-L22 is 24.8V
and operates back-light LED strings of module in E1942S case.