Well...
Now I understand your prediciment.  I don't live in FLA either, so I can't check it out, but I don't know much about the monitors anyway.  My DL cab is empty.  Just a wooden box and coin door.
Do you have a manual by chance?  Their may be some troubleshooting guides in there.  At least, a schematic.
If you have pics or a website, I'd like to check it out.  Is this a restoration project or was the Cabinet already in good shape?