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Replacing the ECPU Board Installing the ECPU Board <br /> 411 <br /> 1 <br /> ® Attach one and 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 0 <br /> cage <br /> O « <br /> Antistatic wrist strap <br /> adhered to base of <br /> console <br /> Board <br /> connector ^ Connect cables: <br /> \{J -Top 16-pin cable from display <br /> to ECPU board J3 <br /> 7 'a -Middle 16-pin cable from key- <br /> board to ECPU board J4 <br /> ® -6-pin cable from printer to <br /> ® J3 ECPU board J7(see inset for <br /> C printer connection precautions) <br /> Correct Printer Connector Orientation <br /> Make sure that tabs of the ribbon cable connector <br /> J4 face the looking ridge of board connector J7 as you <br /> push the connector down over JTs pins.(Check also <br /> �a that the looking ridge is centered between the tabs.) <br /> Q To printer card t <br /> 00 <br /> Ribbon cable <br /> Tabs(2) connector <br /> Locking ridge <br /> ECPU board� i, rJ7 <br /> 4 Front of console <br /> 2 Push board down onto <br /> each retention pin until N Pushy bap down F turn <br /> ry <br /> it snaps through board battery backup OFF. mnsoleskecpulrteps <br /> (three places). <br /> Figure 6. Installing the ECPU Board <br /> 10 <br />