Product review (4 stars): GE Refrigerator Ice/Water dispenser time delay (selector) board
Of course it's normal procedure to cut the power to any electrical device before replacing parts but if you don't...

This model will remind you to cut the power by opening the water valve when you try to physically remove the board.  Once you cut the power, try to gently remove the rubber pad that covers the operating switch (what you press your glass against) and you will be able to see the angle the you will need to hold the board while removing it, to avoid tripping the operating switch.

A couple leads have to be matched to the corresponding plugs on the board, re-install the board at the angle you removed it and make sure the operating switch lever (that will be behind the rubber pad) contacts the micro switch on the board and re-attach the board with the screws from the old one.

It took about 5 minutes and it works perfectly, switches between water, crushed and cubed ice every time.

This refrigerator is a 2002 / 2003 model and this is the first part I've had to replace.  It gets heavy usage and since the board was replaced it has not missed a beat.

Amazon was the best deal - price and super fast (free) shipping.