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LG Flatron Color Monitor Circuit Diagram – L1720B
This circuit diagram apply for LG Flatron Color Monitor L1720B CL-43 chassis. LG Flatron Color Monitor consists of three main parts, the Video Controller Part & Display Data Transmitter , Micom Part and Power Part.
The Video Controller Part & Display Data Transmitter Part (MST9111) 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 135MHz. This part consists of the Scaler. The Scaler gets the video signal converted analog to digital, interpolates input to 1280 x 1024 resolution signal and outputs 8-bit R, G, B signal to transmitter. Especially pre-amp / ADC / Video controller/ Transmitter are merged to one chip “MST9111” by MSTAR. This part transmit digital signal from the Scaler to the receiver of module.
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