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
86MHz.
This part consists of the Scaler, ADC convertor and LVDS transmitter.
The Scaler gets the video signal converted analog to digital, interpolates input to 1360*768resolution 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 3.3V in Power board.
14V is provided for inverter, 14V is provided for LCD panel and 3.3V for micom.
Also, 3.3V is converted 1.8V by regulator. Converted power is provided for IC in the main board. The
inverter converts from DC14V to AC 700Vrms and operates back-light lamps of module.
3. MICOM Part.
This part is include video controller part. And this part consists of Flash which stores control data, and the Micom
which imbedded in scaler IC.
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 Flash.
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Only for training and service purposes

BLOCK DIAGRAM

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