Models 270, 800, and 810 - Power supply - P01
For use by authorized service providers.
Use this procedure to remove or replace the power supply - P01 on Models 270, 800, and 810.
The Models 270, 800, and 810 may be housed in an FC 0551 frame. The upper and lower system units
are placed on rails in the frame. If you are working on the upper or lower unit, follow these instructions and
access the internal parts by opening the front cover and sliding the system unit out on its rails.
To remove or replace the power supply - P01:
1. Power off the system. See Power on/off the system and logical partitions.
2. Unplug the power cord from the back of the system unit. On Models 270, 800, and 810 with a system
unit expansion attached, disconnect both the system line cord and the expansion unit line cord.
3. Remove the left side and rear covers. See Models 270, 800, and 810 - Covers.
4. Remove all cables that run from the power supply to the system backplane.
5. Remove the screws holding the power supply to the rear of the system frame.
6. Remove the power supply by sliding it slightly forward so it will clear the back flange, and then pulling
it out of the system.
7. Install the new part by reversing the procedure. Go to Verify the repair.
This
ends the procedure.
Models 270, 800, and 810 - Power supply - P02
For use by authorized service providers.
Use this procedure to remove or replace the power supply - P02 on Models 270, 800, and 810.
The Models 270, 800, and 810 may be housed in an FC 0551 frame. The upper and lower system units
are placed on rails in the frame. If you are working on the upper or lower unit, follow these instructions and
access the internal parts by opening the front cover and sliding the system unit out on its rails.
To remove or replace the power supply - P02:
1. Power off the system. See Power on/off the system and logical partitions.
2. Unplug the power cord from the back of the system unit. On Models 270, 800, and 810 with a system
unit expansion attached, disconnect both the system line cord and the expansion unit line cord.
3. Remove the right side and rear covers. See Models 270, 800, and 810 - Covers.
4. Remove the cables attached to the top board of the power supply box.
5. Remove the screws holding the power supply to the rear of the system frame.
6. Remove the power supply by lifting the top ring. The power supply box will lift out the side of the
frame.
7. Install the new part by reversing the procedure. Go to Verify the repair.
This
ends the procedure.
Models 270 and 810 - Processor - M02
For use by authorized service providers.
Use this procedure to remove or replace the processor - M02 in the Models 270 and 810.
Note: The processor regulator is part of the processor card assembly (M02).
To remove or replace the processor - M02:
1. Power off the system. See Power on/off the system and logical partitions.
2. Unplug the power cord from the back of the system unit.
Analyze hardware problems 13
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