That EME adapter is one of the slickest things ever made for Model 100/102/200. It is an adapter that lets you plug a standard 27C256 eprom into the non-standard rom socket. It was called a ROMBO.
It solves two different problems at once. * The socket does not have normal sockets for normal chip legs. It has pins that press on the side, and the rom chip is normally supposed to have it's legs bent around a carrier like the J legs on a qfp chip. This adapter comes with a bock of plastic that fills up the space inside the chip legs to support them from behind, so that a normal 27C256 with straight legs can be stuffed into the socket and the socket legs can push on the outside of the chip legs without bending them. This means you can insert and remove a normal chip indefinite times, and still be able to put the rom into a reader to rewrite it, because you don't have to bend the chip legs around the carrier. * The socket is not a standard pinout. This thing converts the pinout from M100-M200 option rom pinout on the outside surface, to standard 27C256 pinout on the inside surface. It means you can play with burning option roms with an ordinary dip28 27c256, without needing to build one of these http://tandy.wiki/FigTronix Some more info: http://www.club100.org/library/librom.html http://tandy.wiki/EME_Systems -- bkw On Sat, May 5, 2018, 3:55 AM Jesse Huyett <j...@huyett.us> wrote: > Hello All, > Just picked up an Tandy Model 102 Portable for a decent price. > Working (minus one issue I'll research before asking), but first up is > taking it apart to do some major cleaning. > > Checking the expansion bay, I found the following: > https://i.imgur.com/HrcZURb.jpg > Two HM6264LP-15 (one soldered, one socketed). I'm assuming the 2nd > (socketed) is a RAM upgrade to 32K. > What I can't seem to find is information on the tan/ silver EME SYS in the > option ROM socket. I thought possibly a 'bypass', but the system appears to > work the same without it. > > Super curious and any information is appreciated. > > Regards, > Jesse >
