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• Failure to turn off the power to the main unit before installing/removing this board may result in damage to the main unit or this board. Installation procedure 1. Remove the cover from the bottom of the main unit. • Open the silver cover (KN6000/6500). 2. Insert the SY-EW03NX Wave Expansion Board into a slot. • To ensure proper functioning of the board, it must be inserted firmly all the way in. • Do not insert two or more SY-EW03NXs in the slots. 3. Use the screws removed in step 1 to replac