Function 04: Lamp test
This function indicates whether any of the control panel indicators are not working correctly, and it also indicates whether the characters that are displayed in the Function/Data display on the control panel are valid.
This function is available in both the normal and manual operating modes.
When a lamp test is initiated, the firmware-controlled indicators in the central electronics complex (CEC) and the expansion units are turned on solid for 4 minutes and then restored to their previous states.
Use the following procedure
to verify that the lights on the system control panel are working
correctly.
- Power on the system.
- Press the Increment (↑) or Decrement (↓) buttons on the control
panel to display function 04.
Press Enter on the control panel.
- Do all of the lights and indicators on the system control panel
turn on?
Yes No ↓ Exchange the FRU with the faulty LED indicator. For example, replace the fan if the LED on a fan does not turn on. - Do all the expansion-unit control-panel lights come on?Note: The expansion-unit control-panel lights will be lit for only about 25 seconds after function 04 is entered.
Yes No The lights on the system control panel are working correctly. Exchange the control panel on the expansion unit.
