At this train announcement board, there are two lines near the bottom. One with a drawing of a train, below that letters. The letters refer to coach numbers, so this does not tell me where on the platform I need to be, like announcements in other countries do. Some of information was blinking.
The drawing appears to tell me where to put my bicycle and where the coffee place is, but what do the symbols otherwise mean, and why are some letters filled and others not?