How to remove the top from a Panasonic SG5070 Music Centre?

[Old Sparky]

You may need to pass the screwdriver through a hole in the cassette mech to get to the last screw.

I've had another good look at this beast(!) and cannot see another screw anywhere, or indeed, how/where a screwdriver could be passed through the cassette mech. to gain acess to a 'hidden screw. This is a top loading cassette deck, with a lid that has broken away from the eject mechanism, and has to be lifted up by hand. It will only lift to about 35 degrees above the horizontal, the normal angle for inserting a cassette.