Hye Jesse,

The EME SYS is an Option ROM.  Invoke it from BASIC using the command:

call 63012

That should run the Option ROM and the LCD contents should provide some information what is contained on the ROM.

Ken

On 5/5/18 12:54 AM, Jesse Huyett 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

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