Checked out the pinout. The Option rom socket is physically the same as 100/102/200. But the pinout is different.
The pinout for the socket on a 600 is the same as 27256, taken from the data sheet for HN613256P. (which is a mask rom where the only difference from 27256 is pin 1 Vpp is NC) So this is interesting. To make new option roms for 600, it probably makes more sense to make a carrier for a regular dip28 27256 than to make a model 600 version of the m100/102/200 module. The features of the carrier look just a bit fine for 3d printing, but maybe one of the larger commercial services can do it with laser sintering or something else instead of fdm. A local hobby shop that does 3d printing has a 3d scanner too. Maybe I'll invest in a simple test just to see how it goes, maybe it's actually easy? A scan won't be as nice and perfect as a manual drawing, but sooo much easier. Also my Multiplan rom has S99 on it too. So if that mark is meaningful, then I guess you have only multiplan roms also. All the roms are the same HN613256P chip, with marks: ICN1: S66 ICN2: S67 ICN3: S68 ICN4: S98 ICN5: S99 -- bkw On Jan 7, 2017 6:15 PM, "John R. Hogerhuis" <[email protected]> wrote: Both of 600s have an unlabeled opt rom. How can I tell what it is? Just labeled S99
