When my combo convection oven / microwave started blowing smoke from the microwave generator thingy (cyclotron?) I opened it up and disconnected the power wires to the microwave power PCB. Now I have a nice convection oven on my deck for baking things outside when it is blazing hot in the summer and turning on the oven in the house is a really bad idea. I found that I could turn those "security screws" that are designed to keep you out of the microwave case using just a pair of plyers gripping the side of the screw. Next up, swapping out the tweeter on the JBL LSR 28p since that 18 month back ordered part finally showed up. Supply chain is long.