Have you ran test 5 on this machine yet? test 5 will tell you what the individual reels are reading
so you should see a series of numbers something like 1.2.1.3
The first 1 designates the first pay line and then 2.1.3 is an example (only) of the 3 symbols showing
on the payline. If you get 0.0.0.0 then the first thing I would suspect is the reel reader decoder which
sits behind the reel mechanism.
Are you getting any codes in the window? with the door open you should get a 50 000 code, even after
you close the door, that code will stay until a coin is played.