IBM 270, Service Manual

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5. Remove the power supply that has the defective AMD attached by pulling down on the docking handle,
and sliding the power supply with the two AMDs attached out of the expansion unit.
6. Remove the AMD from the power supply by pulling out on the latch knob and sliding the AMD to the
left towards the latch.
7. Install the AMD by reversing the removal procedure.
Attention: Do not slam the new power supply when installing it into the system. Insert the power
supply until it engages the frame, then lift the docking handle to lock the power supply into place.
8. After exchanging an item, go to Verify the repair.
This ends the procedure.
FC 5078, FC 0578, FC 5088, FC 0588 - Air moving device controller card - BB1
For use by authorized service providers.
Use this procedure to remove or replace the air moving device (AMD) controller card in an FC 5078, FC
0578, FC 5088 and FC 0588.
To remove or replace the air moving device controller card - BB1:
1. Power down the PCI expansion unit. See the Expansion unit power procedure. frame.
2. Disconnect the two ac power cords from the AC box.
3. Remove the rear cover. See FC 5078, FC 0578, FC 5088, FC 0588 - Covers or.
4. Remove the EMC access plate over the card enclosure by loosening the thumb screws and pulling it
towards you.
5. Unclip and remove the cable by pressing down on the cable retainers to eject it.
6. Remove the AMD controller card (BB1) by pulling out on the latch knob and sliding the card back
toward you.
7. Install the AMD controller card by reversing the removal procedure. After exchanging an item, go to
Verify the repair.
This ends the procedure.
FC 5078, FC 0578, FC 5088, FC 0588 - Cards (concurrent)
For use by authorized service providers.
Use this procedure to remove or replace cards concurrently in an FC 5078, FC 0578, FC 5088, or FC
0588.
Concurrent/dedicated guidelines for FC 5078, FC 0578, FC 5088, or FC 0588
In some cases, you do not need to power down the system to change PCI cards. If you choose to power
down the FC 5078, FC 0578, FC 5088, FC 0588 frame, see FC 5078, FC 0578, FC 5088, FC 0588 -
Cards (dedicated). If you use concurrent maintenance on a partitioned system, follow the procedures from
the partition that owns the resource. If the resource is not owned, follow the procedure from the primary
partition.
For FC 5078, FC 0578, FC 5088, FC 0588 IXS cards:
The IXS cards require dedicated maintenance. See FC 5078, FC 0578, FC 5088, FC 0588 - Cards
(dedicated).
For FC 5078, FC 0578, FC 5088, or FC 0588 cards - except IXS cards:
v
Card positions that permit card level concurrent maintenance using HSM:
– For FC 5078 or FC 0578 : Card positions C01 through C07 and C09 through C15 permit card level
concurrent maintenance using HSM. You can power down the individual card slot.
Analyze hardware problems
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