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Replacing the ECPU Board Installing the ECPU Board <br /> Attach one end of the antistatic wrist strap <br /> to your left wrist and adhere the other end <br /> D to thecomm board cage. With your right <br /> 0 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 /> II ^ 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 Q <br /> cage <br /> o °® <br /> Antistatic wrist strap <br /> adhered to base of <br /> console <br /> Board <br /> connector Connect cables: <br /> 3 Top 16-pin cable from display <br /> to ECPU board J3 <br /> Middle 16-pin cable from key- <br /> board to ECPU board J4 <br /> ® <br /> -6-pin cable from printer to <br /> J3 ECPU board V(see inset for <br /> printer connection precautions) <br /> ® Correct Printer Connector Orientation <br /> iMake sure that tabs of the ribbon cable connector <br /> d' J4 face the locking ridge of board connector J7 as you <br /> fj <br /> -Ell push the connector down over J7's pins.(Check also <br /> z Z21 that the locking ridge is centered between the tabs.) <br /> 0 <br /> Q To printer card t <br /> j Ribbon cable <br /> Tabs(2) , connector <br /> 1 Locking ridge <br /> ECPU board J7 <br /> i <br /> 4 Front of console <br /> Push board down onto <br /> each retention pin until N Push SW 1 down to turn <br /> it snaps through board battery backup OFF. <br /> consoles\ecpuin.eps <br /> (three places). <br /> Figure 6. Installing the ECPU Board <br /> 10 <br /> I <br />