My company is looking at taking one of these Omega 1000s on full maintenance and is the only one I know of in my Area. This one was installed around 1990 and appears to have the newer Koyo PLC. The odd thing is when I checked part availability it appears that some of the timer boards boards are interchangeable with US elevator and the push buttons look just the ones I've seen on the US 1200 series stuff(large circular)? Was there some connection between US elevator and Amtech/Reliable?