so this part should be all I will have to do to it?
We won't know 100% until you check it out.
If it's something that happened after it was self cleaned there is also another thermal fuse located on the back of the oven that may also be bad.
Thermal Fuse Part # 4451354
Here is the diagram for model RBD305PDQ15
If both thermal fuses are good and you have power to the control board but the clock don't light up then you have a bad control board.
Control Board Part # W10406070
I see a lot of thermal fuses go bad in these ovens after a self cleaning cycle though.
Let us know what you find or if you have any other questions.