I have a 1998 MAZAK QT-6G with Flex GL6 Gantry. I have attached the sequence of screens. The one with all the info is when I first got it. The next is the error screen. Now nothing, the power button doesn't light up. Can a dead battery cause this and where is the battery? The third board in has what appears to be a large button battery soldered on the board. I have all the manuals but can't find that info. Any techs in the Phoenix, AZ area?