Panasonic LX600 Technical Information

Also see for Lx-600: Tuner firmware installation instructions Operating instructions

Contents

Panasonic LX600 Technical Information Manual pdf 8 page image

8A Board Video ProcessingVideo processing is performed on the A board. The A board incorporatedin these models is now responsible for signal processing, and systemcontrol operation. The video processing function that had been performedby the DG board of the previous models is now accomplished on the ABoard by IC4002. This IC is also responsible for selectively switching allvideo inputs (Tuner, Component, Composite, S-Video, and HDMI). TheHDMI video is converted to an eight-bit YUV signal by the HDMI IFreceiver (IC5004) before being output to the video selector. IC5002provides the copyright protection for the incoming HDMI signals. TheATSC interface (DT board) processes the ATSC, NTSC, and QAM televisionsignals. The analog NTSC and digital ATSC or QAM signal of the DT board areoutput to the A board via the connector DT12/A12. IC4002 is responsible forprocessing all video, which includes image resizing, noise reduction, I/Pconversion and Gamma adjustment control. Although selected by adifferent IC, the audio processing function is also performed by IC4002.OSD is also generated by IC4002 and mixed with the video signal beforebeing output to IC4004. IC4004 is a Field Programmable Gate arrayresponsible for the pixel conversions and addressing of the Active Matrixdisplay within the LCD Panel. This IC also contains the low voltagedifferential signaling (LVDS) transmitter, used for the conversion of the 8-bit RGB video into a differential RGB output signal. The LVDS receiveron the LCD panel (not shown in the drawing) converts the differentialRGB output signal from the A board into an 8-bit RGB signal that isprovided to the LCD Panel.