Function 04: Lamp test

This function shows whether any of the control panel indicators are not working correctly, and whether characters that are displayed in the Function/Data display on the control panel are valid.

This function is available in both normal and manual operating mode.

When you activate the lamp test, all of the control panel lights and indicators are lit. The lamp test continues on the system control panel for four minutes.

Use the following procedure to verify that the lights on the system control panel are working correctly.
  1. Power on the system.
  2. Press the Increment (↑) or Decrement (↓) buttons on the control panel to display function 04.

    Press Enter on the control panel.

  3. Do all of the lights and indicators on the system control panel come on?
    Yes No
    ↓ Exchange the control panel or the replaceable unit that contains the control panel function [system unit backplane (MB1) or tower card (CB1)].
  4. Do the expansion unit control panel lights all 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.