IBM TotalStorage SAN140M, Installation And Service Manual

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247 Chapter 5: Removal and replacement procedures (RRPs)
1. Remove the replacement backplane from its protective anti-static
bag. Inspect the backplane PWA to ensure no connector pins are
damaged.
2. Align the guide pins on the back of the backplane with the
alignment holes in the card cage.
3. While holding the backplane in place, insert and hand tighten one
of the top center panhead Phillips screws.
4. Insert and hand tighten the remaining six panhead Phillips
screws.
5. Using a standard Phillips screwdriver, tighten the 7 panhead
screws that secure the backplane to the card cage. Tighten the screws
alternately from bottom to top and from side to side.
6. Connect the maintenance port cable.
7. Replace the card cage and backplane in the director chassis. with
6 panhead Phillips screws. Use a standard Phillips screwdriver to
replace the 6 panhead Phillips screws.
8. Plug the Power/System LED assembly cable into the backplane.
9. Replace the SBAR assemblies ( RRP: SBAR assembly on page 241).
10. Replace the fan modules ( RRP: Fan module on page 235).
11. Replace the AC modules ( RRP: AC module on page 232).
12. Replace the power supplies ( RRP: Power supply on page 229).
13. Replace the port cards ( RRP: Port module card (UPM and XPM) on
page 218).
14. Replace the CTP cards ( RRP: CTP card on page 213).
15. Disconnect the ESD wrist strap from the director chassis and your
wrist.
16. Replace the RFI shield.
17. Connect the power cords and power on the director ( Power-on
procedure on page 188).
18. Verify that POSTs complete and the green power LED on the front
bezel, green LED on the active CTP card, and green PWR OK
LEDs on both power supplies remain lit. If a problem is indicated,
go to
Chapter 3, Maintenance analysis procedures (MAPS) to isolate
the problem.