Gee, and I thought I was mechanically minded - I feel like a kid with one of those silly puzzles...

ACC Type III - out and on the coffee table: I'm going in after the relays - how do I get the buttons and surrounding bezel off the front?

And/or: in what order do these things come apart? I've had the cover off in the past, just to inspect the solder on the big board, but have not gone further...

OK, may not be the best, but popped the bezel loose, and reached in from the bottom side, and gently pryed each button forward. They each have sort of 2 clicks before they're free - the first click with screwdriver up through the crack from the bottom, then just pull from the front for the second click.