Use the blue identify LED on the enclosure to locate the system. Ensure that the serial number of the
system matches the serial number to be serviced.
2. The control panel display can be replaced with the system powered on. If you choose to power off the
system to complete the repair operation, complete the following steps:
a) Stop the system. For instructions, see Stopping a system (www.ibm.com/support/
knowledgecenter/POWER9/p9haj/crustopsys.htm).
3. For a rack-mounted system, remove the front cover by pulling it away from the system.
The cover has indentations (A) where you can hold it more easily. See Figure 36 on page 38.
Figure 36. Removing the front cover
4. For a stand-alone system, remove the front cover and door by completing these steps.
a) Insert the front door key into the lock as shown in Figure 37 on page 39. Twist the key to the left
(counterclockwise) to unlock the door. Horizontal is locked; vertical is unlocked. Open the front
door.
38
Power Systems: Power Systems: Control panel
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