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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 6. <br />wristadhered <br />to base of <br />{ i <br />Attach one end of the antistatic wrist strap <br />console <br />to your left wrist and adhere the other end <br />Board <br />to thecomm board cage. With your right <br />connector/� <br />hand, hold the ribbon cables out of the way. <br />ECPU Board Installation <br />" <br />Holding the ECPU board in your left hand as <br />guide slots (one at top <br />shown, slide the board around the Comm <br />and bottom) <br />Board cage and straight back into top and <br />bottom guide slots. Place your thumbs on <br />li 1. <br />leir <br />the front edge of the board at the top and <br />bottom and push the board firmly toward <br />p <br />the back of the console to seat the board <br />CommagBoard <br />connector in the motherboard connector. <br />' I I I <br />wristadhered <br />to base of <br />console <br />Board <br />connector/� <br />Connect cables: <br />Top 16 -pin cable from display <br />Jj <br />to ECPU board J3 <br />Middle 16 -pin cable from key- <br />ey- <br />board to ECPU board J4 <br />li 1. <br />leir <br />6 -pin cable from printer to <br />ECPU board V (see inset for <br />p <br />printer connection precautions) <br />I + <br />Correct Printer Connector Orientation <br />Make sure that tabs of the ribbon cable connector <br />r) <br />face the locking ridge of board connector J7 as you <br />push the connector down over JPs pins. (Check also <br />that the Locking ridge is centered between the tabs.) <br />'{I.; f Ja �.., <br />..• Toprintercard <br />i i• <br />y <br />y <br />Ribbon cable <br />+ M <br />Tabs (2) connector <br />Locking ridge <br />- <br />ECPU board BJP <br />2 <br />Front of console <br />Push board dawn onto each retention <br />pin until it snaps through board (3 places). <br />Push SWI down <br />to turn 837-e.eps <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 />10 <br />