Archive for the Panasonic TX-LR42U20 LCD television, main board TNP4G468 revision 1A, about 11.6 MB in size. The memory chip is not named, though the size suggests a main flash firmware image. Technicians use such dumps to reprogram the board when the set stays in standby, restarts or hangs on the logo following software corruption. Unpack with 7-Zip or WinRAR, compare the image size with the capacity of the chip fitted on your board, confirm TNP4G468 1A, and back up the original first.
The button opens the matching file on RM Schematics, or a source page if it is not catalogued there yet. The original attachment is from @tvsoftwareworld. Enginerys does not host this file.
How to open a .rar file
Compressed archive — the usual wrapper for a schematic + boardview pair or a BIOS + EC set.