DIGITAL ACCESS CONTROL (DAC) Always disconnect operator from door before programming to avoid injury to yourself or the operator On the back of the operator, find the button marked "SC" and press it one time. The light on the front of the motor will flash once. At the keypad, press the "ENTER" button, then your new four-digit pin number, then press "ENTER", "ENTER". The light on the front of the motor will flash twice. Wait approximately 45 seconds and the light on the motor will come on for about 15 seconds and go off. Your new code will now work each time you enter it. If the old keypad continues to work, the customer must fill up all the available channels with TX codes. Press the "SC" button, then press, "ENTER", put in your new four-digit pin number, then press "ENTER", "ENTER". Press the "SC" button twice, and the "TX" button once. Next press the "SC" button three times, and the "TX" button once. Next press the "SC" button four times, and the "TX" button once. Finally press the "SC" button five times, and the "TX" button once. At this point, the DAC and the TX should be the only things that work.