Models 840/Sb3 System Unit - Spcn Card (R21) - IBM iSeries 270 Service Manual

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.

Models 840/SB3 system unit - SPCN card (R21)

For use by authorized service providers.
Use this procedure to remove or replace the SPCN card (R21) in the Models 840 or SB3 system unit.
Attention: All cards are sensitive to electrostatic discharge (see "Work with electrostatic
discharge-sensitive parts" on page 585).
CAUTION:
The circuit card contains lead solder. To avoid the release of lead (Pb) into the environment, do not
burn. Discard the circuit card as instructed by local regulations. (RSFTC234)
To remove or replace the SPCN card (R21):
1. Power the off system. (See "Power on/off the system and logical partitions" on page 561.)
2. Disconnect the power cord.
3. Remove the rear cover. (See "Models 840/SB3 - Covers" on page 80.)
For Model 840/SB3, refer to "Final assembly, rear - Models 840 and SB3 Processor Tower" on page
414 and then perform the following steps from the rear of the system.
4. Mark the locations of the cables attached to the SPCN card so that you can reinstall the cables to the
proper locations.
5. On opposite ends of the card, press the two latch surfaces together to release each latch.
Analyze hardware problems
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