How do you remove a Frigidaire Freezer contol board

I am trying to replace the control board on my Frigidaire upright freezer. The control board is on the exterior of the door. I know that there are six tabs that hold the board in the door.
My question is how do you remove the old control board without breaking the tabs? I have removed the interior panel of the door. The door is filled with Styrofoam.
links to any written material or videos for this would be most helpful.:o

Click on the below and then read the Most Helpful Stories and the Q&A.
AP4981913