Description Of Block Diagram - LG Flatron W1943SB Service Manual

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 25MHz to 85.5MHz.
This part consists of the Scalar, ADC converter, TMDS receiver and LVDS transmitter.
The Scalar gets the video signal converted analog to digital, interpolates input to 1360 X 768 resolution signal and
outputs 8-bit R, G, B signal to transmitter.
2. Power Part.
This part consists of the one 3.3V, and one 1.8V regulators to convert power which is provided 5V in Power board.
14.5V is provided for inverter, 5V is provided for LCD panel.
Also, 5V is converted 3.3V and 1.8V by regulator. Converted power is provided for IC in the main board.
The inverter converts from DC 14.5V to AC 700Vrms and operates back-light lamps of module.
3. MICOM Part.
This part is including video controller part. And this part consists of Reset IC and the Micom.
The Micom distinguishes polarity and frequencies of the H/V sync are supplied from signal cable.
The controlled data of each mode is stored in scalar.
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