Is the backpane board the same as the motherboard and if so is it the U14 socket & if that is it I have 1 board that looks like it is socket & the other is soldered in which i would like to change. I seen the link to buy the eprom to plug in would you know the link for the female holder for the mouser website to change my other board. Also then are these the steps to be able to change games. Pull old game MPU & Flash board out & eprom chip out. Put new eprom chip in & New game MPU & Flash board in with clear chip 28 in & clear it & then put the game boot chip in & program the eprom for that game. And after that to change the game to the old one just use the other eprom chip & the old game MPU & Flash board. I hope I didn't confess you. Thanks Ralph