With the necessary assistance of a helper, we pulled out the double oven to get at the board. In my case the oven was affixed in the cabinet with 4 screws, plus the gas line and power cord. We had to disconnect the gas line as it was hanging up where the flex line entered the cabinet. Anyway, after removing the top cover, the clips/standoffs which hold the Lower Oven Relay Board in place are much more accessible, as are the various wiring connections. Per the suggestion made here, I checked the voltage across the relay with the bake off and on. With the oven in Bake it should have read 0 VAC, but it read 120 VAC in both ON and OFF, pretty suggestive of a busted relay. We removed the power and pulled the board and there is a very obvious burned spot at one of the relay connections on the PCB. So it's on it's way to the repair shop in Texas. Hopefully they've got a relay to replace the bad one!