Not my area of expertise at all, but if you haven't already, you can see if anything from the Pro Tools LE & Time Code Q & A helps:
http://www.digidesign.com/support/faq/ptletc.html
Again, I don't know, but maybe using MTC is an option?
http://answerbase.digidesign.com/detail.cfm?DID=7240
I do remember back from the Pro Tools 4.3 Audiomedia III days that about the only way to get Pro Tools to sync to external clock was using something like a MOTU Digital Time Piece or Aardsync perhaps using the S/PDIF on the AMIII.
I don't think MachineControl is what you are looking for. I don't remember offhand if it requried a TDM system back in the PT 4 days. It didn't come up a lot in discussions as an option for AMIII owners since it lists for $749. You could check to see if it exists as an option in the Pro Tools Setups > Peripherals Machine Control window in PT 4. (even on a TDM system, it might not show up unless the MachineControl software already exists in the DAE Folder/DAE Extensions folder)
But you can check the MachineControl Guide and the older MachineControl Addendum under heading "Pro Tools Mac v4".
and in the Products section:
http://www.digidesign.com/products/p...roduct_id=1050
The Answerbase probably is a good place to look, though. A search for the words:
word clock
bring up 28 records, so maybe something there will be of use.
That's about all the unknowlegable advice I have to offer. Sorry if this sends you down the wrong road and wastes your time. Hopefully someone else can give you a more accurate answer than I can. [img]images/icons/smile.gif[/img]