Xerox 4540 Service Manual - Page 150
c. Connect the ribbon cable to the connector on the disk drives backplane
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7. Detach the ribbon cable from the front indicator board, see FIGURE 3-14. If you suspect that the ribbon cable is bad, remove the old ribbon cable from the disk drives backplane and use the new ribbon cable that comes with the new front indicator board. Make sure you route the cable through the cable securing clips to prevent damage to the cable. Then test the operation of the front indicator board as described in Section 2.1, "Powering On the Server" on page 2-2. FIGURE 3-14 Detaching the Ribbon Cable from the Disk Drives Backplane 1 Detatch the ribbon cable connector from the disk drive backplane. 8. Install the new front indicator board: a. Align the holes in the indicator board with the two screw holes in the inside-front of the chassis. b. Using a No. 1 Phillips screwdriver, replace and tighten the two screws that secure the indicator board to the chassis. c. Connect the ribbon cable to the connector on the disk drives backplane and to the connector on the front indicator board. 9. Replace fan module 0 and fan module 1. 10. Close the fan cover and, using a No. 1 Phillips screwdriver, tighten the two screws on the left and right sides. 3-30 Sun Fire X4500/X4540 Server Service Manual • May 2010
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