Trouble with EII RS 422 Port
2002-11-19 by Richard S. Spoula
I'm looking for help in trouble-shooting my RS 422 Port on my EII. It seems that my recently aquired EII has serial #1101 which is one increment higher than the document that states the following in the techinical folder in the files section of this users group: "Important: Emulator II's with serial numbers below approximately #990 (dual drive) and #460 (single drive) require an upgrade that converts the serial interface to RS-422 to work with Sound Designer. Some Emulator II's with serial numbers from approximately 950 to 1100 require a modification to work with Sound Designer." The big word is "approximately." All of the EPROMS check out with the correct number on their label but I still can't get the SD for EII program to access the EII. Does anybody have the documentation or procedure to modify the RS 422 Port so I can see if in fact this EII needs such a retro. I checked the cable at least 5 times including continuity tests and it checks good. Any help on this issue would be appreciated. Skip