Step 1: Open Keypad
Step 3: Remove the grounding wire from the surgeboard.
Step 4: Remove surgeboard screws.
Step 5: Pull the surgeboard off. Remove the screws in the picture below.
Step 6: Once the 4 screws above have been removed, pull the entire circuitry off.
Step 7: remove the 4 tiny screws on the LCD
Step 8: Pull off the old LCD. Insert the new LCD and screw the circuitry into place.
Step 9: Insert the circuitry back on the touch pad keys and insert the four screws that hold down the circuitry into the housing.
Step 10: Screw surgeboard back in.
Step 11: Screw grounding wire back in.
Step 12: Plug terminal blocks back in.
Step 13: Make sure that you can read the LCD display. If you can read the welcome message you are done.