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Replacing the ECPU Board lnsWUng the ECPU Board <br />kmftlNng dw 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 6. <br />ECPU Board installation <br />guide slots (one at top <br />and bottom) <br />Comm Board <br />cage <br />Antistatic wrist strap <br />adhered to base of <br />console <br />2 MW <br />Push board down onto each retention <br />pin unfit it snaps through board (3 places). <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 />Holding the ECPU board in your left hand as <br />shown, side the board around the Comm <br />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 />Board <br />connector Connect 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 J4 <br />6 -pin cable from printer to <br />ECPU board V (see inset for <br />printer connection precautions) <br />Push SW1 down to turn <br />battery backup OFF. <br />Figure 6. Installing the ECPU Board <br />3. Perform a cold boot as described in "Performing a Cold Boot" on page 11. <br />E <br />esr4sps <br />Correct Printer Connector Orientation <br />maim sure that tabs of the ri66on cable connector <br />face the locking ridge of board connector V as you <br />push the connector down over Os phis. (Check aim <br />that the kxkino ridge is cared between the tabs.) <br />Towinter card r <br />RAW caw <br />T (2) kakv�ecta <br />I <br />lnddng ridge <br />i <br />EM Man! J7 <br />1 <br />h <br />ofowea� <br />Push SW1 down to turn <br />battery backup OFF. <br />Figure 6. Installing the ECPU Board <br />3. Perform a cold boot as described in "Performing a Cold Boot" on page 11. <br />E <br />esr4sps <br />