Circuit breaker test and nothing. YouTube videos suggest circuit board fuse was dead. Kill power. Slid oven out onto table with power feed still connected. Take pictures of screw locations and wire connections. Removed top control box cover (9 Phillips screws) and locate inline fuse within clear tube just atop the circuit board; snip off cable ties holding fuse tube. Disconnecting StaKon terminals at each end of fuse assembly was difficult. Temporarily connect fuse wires and turn on power to confirm board still operational. Oven model number info just under front control panel.
Sunday online ordered fuse assembly from AppliancePartsPros.com, received Wednesday morning and installed and thankfully operational by noon.