Found an old mod I was take part on ebay. I was soldiering the internals and connectors to the PCB. It's a really good handcraft piece and definitive worth it's money. It was designed in a way that the complete roof with DTV of the 1541-II can be unplugged. The 1541-II can be used with and without the DTV. It has built-in keyboard interface, two additional game ports, power supply jack, IEC connector of course, Video connector and stereo (!) jack. Nice work Gunther!