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Replacing the ECPU Board Installing the ECPU Board <br /> Installing the ECPU Board <br /> 1. Turn off AC power to the console. <br /> 2. Install the new ECPU board in the console following the steps outlined in Figure 7. <br /> } <br /> • Attach one end of the antistatic wrist strap <br /> ® to your left wrist and adhere the other end <br /> ® to thecomm board cage.With your right <br /> • hand,hold the ribbon cables out of the way. <br /> ECPU Board Installation '• ® Holding the ECPU board in your left hand as <br /> guide slots(one at top shown,slide the board around the Comm <br /> and bottom) Board cage and straight back into top and <br /> bottom guide slots. Place your thumbs on <br /> the front edge of the board at the top and <br /> bottom and push the board firmly toward <br /> the back of the console to seat the board <br /> connector in the motherboard connector. <br /> Comm Board <br /> cage <br /> o •' <br /> Antistatic wrist strap <br /> adhered to base of <br /> console <br /> Board <br /> connector3nne'Cot cables: <br /> -Top 16-pin cable from display <br /> to ECPU board J3 <br /> Middle 16-pin cable from key- <br /> board to ECPU board A <br /> 6-pin cable from printer to <br /> ® J3 ECPU board J7(see inset for <br /> 5 printer connection precautions) <br /> E El <br /> Correct Printer Connector Orientation <br /> Make sure that tabs of the ribbon cable connector <br /> J 4 face the locking ridge of board connector J7 as you <br /> push the connector down over JTs pins.(Check also <br /> that the locking ridge is centered between the tabs.) <br /> Toprintercard t <br /> 'J7 <br /> a�Ribbon cable <br /> Tabs(2) connector <br /> locking ridge <br /> ECPUbwrdjJ7 <br /> Front of console <br /> 2 4 <br /> Push board down onto each retention <br /> pin until it snaps through board(3 places). Push SWl down to turn <br /> battery backup OFF. <br /> Figure Z Installing the ECPU Board <br /> 3. Perform a cold boot as described in "Performing a Cold Boot" on page 12. <br /> 11 <br />