Directions were great and the worn dc in board was replaced. The hardest part of the procedure is disconnecting the data display cable. A better description of step 21 is to slide the connector parallel to the circuit board towards the outside corner. Reconnecting correctly took several tries.
I used the tip of the spudger to nudge the corners a little at a time to seat the connector.
The ribbon connector for the keyboard has to be inserted all the way before seating the retaining cap. It took me three tries . First try power button did not work second try numbers keys did not work.
Thanks for the directions ...could not have done it with out them!!!