HP 11900 User Manual - Page 9

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HP 11900 User Manual
Figure 6 Removal flow of a power supply
NOTE:
The device needs at least one power supply, so the chassis has a power supply slot
without a blank panel. For this slot, skip "Install the blank panel" in the figure above.
Before you remove a power supply, prepare an ESD-preventive wrist strap and a Phillips
screwdriver.

Removing the power cord

To remove the power cord:
1.
Turn off the circuit breaker of the power cord.
2.
Wear an ESD-preventive wrist strap, and make sure that the wrist strap makes good
skin contact and is properly grounded.
3.
Loosen the screw that fastens the power cord, and pull the power cord out.
CAUTION:
After the circuit breaker that connects to a power supply is off, it is normal that the
LEDs on the power supply last on for a while.
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