Protel 99 可以打开。里面是5105芯片的机顶盒硬件设计方案和一个bin文件。包括pcb sch2个文件和一个bin文件。bin文件是用来共享某些CA系统的智能卡的。有了这3个文件，就可以找工厂代工生产硬件及烧录应用软件了。,Protel 99 can open. There are 5105 chip set-top box hardware design program and a bin file. Including pcb sch2 file and a bin file. bin files are used to sharing certain CA smart card system. With these three documents, you can find OEM Factory production of hardware and application software writers.