Remove 2 screws on the lower panel and lift it away.
Remove 2 screws on the lower edge of the front panel then slide it up.
Remove 4 screws and lift away combustion cover.
Remove the 2 screws front left and right of the top panel, the panel can then be slid forwards and lifted to give access to the PCB.
Note: Wiring harness colours may change but test points will remain the same.