I/O Drawer Power Distribution Board
Removal
1. Turn off power as described in “Powering Off the System” on page 429.
2. Place the I/O drawer in the rear service position as described in “Rear Service
Position” on page 467.
3. Remove the two thumbscrews and remove the rear cover.
Rear
Cover
4. Remove any adapters or files installed in slots 12, 13, or 14.
5. Disconnect the four I/P cables from the I/O tray.
6. Remove the two screws from each side of the I/O drawer board assembly.
7. Disconnect the miscellaneous power cable from PCI board connector J21.
8. Slide the I/O drawer board assembly to the rear to disconnect the assembly from
the power distribution board bus bar.
9. Place the I/O drawer in the front service position as described in “Front Service
Position” on page 468.
10. Remove the power supplies as described in “Power Supplies and Power Supply
Fan Assemblies” on page 454.
452 Service Guide
To Next Page
Loading...