Fc 5074, Fc 5079, Fc 9079 - Tower Card - Cb1 - IBM iSeries 270 Service Manual

Note: The light at the top right of the device will go off and remain off as soon as the device is no
longer making contact with the backplane.
e. Remove the unit from the tower.
v If you need to remove a tape from the old tape unit, see Tape cartridge - Manual removal.
v If you need to remove optical media from an optical device, go to Optical media - Manual
removal.
To replace the removable media - D41 and D42:
1. Perform the following to install a new unit.
a. Select Device Concurrent Maintenance and enter the required information in the information
fields. Do not press the Enter key at this time.
b. Read the remaining steps of this procedure and ensure that you understand the procedure before
continuing.
c. Slide the unit partially into the tower. Ensure that the device does not contact the backplane at
this time.
d. Press the Enter key on the console. After the delay time, the light at the top right of the device will
begin flashing. You now have 9 seconds to push in firmly on the handles and push the unit
completely into the frame.
Attention: If you install the device when the light is not flashing, data may be lost, the unit may be
damaged, or the backplane may be damaged.
Note: The light at the top right of the device will go off and remain off for a few seconds when the
device contacts the backplane. Then it should go on and remain on.
Did the light on the device go on and remain on?
v No: Continue with the next step.
v Yes: After exchanging an item, go to Verify the repair.
This ends the install procedure.
2. Attempt the device concurrent maintenance procedure again without physically moving the unit.
Did the light above the device go on and remain on?
v No: Continue with the next step.
v Yes: After exchanging an item, go to Verify the repair.
This ends the install procedure.
3. There is a power problem. One of the following is the problem:
v The new unit is defective.
v The backplane was damaged during the device concurrent maintenance procedure.
v There is a new problem with the power subsystem.
This ends the procedure.

FC 5074, FC 5079, FC 9079 - Tower card - CB1

For use by authorized service providers.
Use this procedure in conjunction with the Expansion unit power procedure to remove or replace the tower
card - CB1 in an FC 5074, FC 5079, or FC 9079.
To remove or replace the tower card (CB1):
1. Power off the expansion tower using the Expansion unit power procedure.
Note: The Primary I/O Unit Tower Card cannot be replaced concurrently.
2. Open the rear cover. See FC 5074, FC 5079, FC 5094, FC 5294, FC 9079, FC 9094 - Covers.
3. Disconnect the plugs to each power supply.
4. From the rear of the expansion tower do the following:
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Hardware (Remove and Replace; Part Locations and Listings)