Once those are all undone, it should slide upwards and out. The main ramp is secured by a screw on the left slingshot, a screw in a metal post halfway up the left side of the playfield, two screws on the playfield back panel, and two screws which secure the ramp flap to the playfield. There are holes in the playfield which the wires are routed through. You can find these in the back left corner as well as to the right of the ramp entrance. The main plastic ramp requires disconnecting some flashers, lamps and switches. There are only a couple of ramps to disassemble: the wireform ramp which leads to the right inlane (secured by a single nut on the right slingshot) and the main plastic ramp. I would say Jurassic Park is one of the simpler dot matrix games when it comes to playfield disassembly. That was a good start, but a lot of work was needed to make sure it would keep booting up successfully. However, despite this, the game did boot up successfully. There were some obvious issues with the circuit boards, too. The playfield looked fairly ordinary, with a lot of broken plastics, some damage to the timber around the scoops, a lot of dirt and dust everywhere, and most playfield mechanisms in dire need of a good clean and service. It's a shame when these cabinet bases get wet, as most manufacturers of the era used cheaper (and weaker) MDF for the base, even though plywood (as used for the cabinet sides) maintains its structure a little better when affected by moisture. The result was a very flaky and soft substrate which would need repair if only to prevent you from getting splinters every time you went to turn the game on! The inside of the cabinet was similar, with the crossbeam that separates the coin box from the speaker having swelled and split after soaking up water for an extended period. In particular, the underside of the cabinet was bulging in several places, particularly around the power switch, where moisture had penetrated into the MDF. The first thing that I noticed when I inspected this game for the first time was the amount of swelling and rot which had affected the MDF cabinet.

Pinball wicked cabinet mode