Panasonic TH-42PX20U Service Update Information

Also see for TH37PA20U - 37" SDTV PLASMA DISPLAY: Operating instructions

Contents

Main and Sub Video signals are amplified and applied to another video switchingIC, IC4302.The component video signals Y, Pb, and Pr are also input to IC4302 via theconnectors located at the rear of the cabinet.The DVI input connector, attached to the DG Board, supplies the DVI signal tothe DVI receiver where it undergoes serial to parallel conversion. The output ofthe DVI receiver is converted to a Y, Pb, and Pr component signal and thenapplied to pins 14, 16, and 18 of IC4302 via pins 415, 116, and 316 of connectorH1/DG1. IC4302 selects between NTSC, Component, and DVI video inputsignals. The selected signals can be in any of the three formats; Video, Y/C, or Y,Pb, Pr. The main signal is output via pins 43, 44, and 46 of IC4302. The signalsare amplified and output to the DG-Board via pins 107, 307, and 407 of theconnector H1/DG1. The Sub NTSC video signals are also amplified and output tothe DG-Board via pins 405, 206, and 406 of the same connector.16