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Xi Advanced Electronics
6-14
Instruction Manual
IM-106-910Xi, Original Issue
November 2010
13. Reinstall the bumper and 4 screws to secure the CPU board in place.
The two longer screws are used with the plastic bumper on the top edge
of the CPU board.
14. Position the front panel assembly and reinstall the hinge pin. Ensure the
hinge pin is fully seated into the Xi cover.
15. Reconnect the 10-pin ribbon cable from the I/O Board.
16. Reconnect the 14-pin ribbon cable from the Power Supply Board.
17. Swing the Xi cover up in place and tighten the four screws.
18. If necessary, reconfigure the appearance of the main display. Refer to
Section 3: Configuration of Xi Electronics.
DR Board Replacement
Use the procedure that follows to replace the DR board in the Xi that is
connected to a Direct Replacement probe.
1. Loosen the four screws securing the Xi cover. The screws are captive
and do not need to be completely removed.
2. Swing the Xi cover down to expose the inner components.
3. Slide the DR board part way out of the Xi enclosure.
4. Unplug the wiring harness plug from the connector J8 located on the
bottom, left-hand side of the board. Refer to Figure 6-10.
5. Unplug the wiring harness plugs from the connectors J1, J2, and J3
located on the top, right-hand side of the board. Refer to Figure 6-11.
6. Tag and disconnect the wiring to connector J4.
7. Remove the DR board from the Xi enclosure.
8. Partially slide the new DR board into the mating slots in the Xi
Enclosure. Make sure the board is correctly aligned in the slots.
9. Refer to the wiring diagram in Figure 6-10. Reconnect the wiring to
connector J4.
10. Connect the wiring harness plugs to connectors J1, J2, J3, and J8.
11. Slide the DR board completely into the Xi enclosure.
12. Swing the Xi cover up and tighten the four mounting screws.
Disconnect and lock out power before working on any electrical components.