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Table 32. Function 02 select IPL type, logical key mode, and IPL speed on powered-off
systems without a keystick (continued)
Function/data Action or description
02__B__N____S_<_
________________
Use the Increment or Decrement buttons to
scroll through the IPL speeds.
02______________
________________
Press Enter to select the IPL speed and exit
function 02.
01______________
________________
Use the Increment or Decrement buttons to
scroll through the control panel functions.
Function 03–Start IPL: Function 03 is enabled only when the key mode is in
Manual and the system power is on.
This function starts an IPL of the selected IPL type when you press the Enter
button. All the Licensed Internal Code is loaded.
Attention: No system shutdown is performed before the IPL. The use of this
function can cause loss of data.
Function 04–Lamp Test: This function shows whether any control panel indicators
are burned out and whether characters that are displayed on the control panel
Function/Data display are valid. When you activate this test, all the control panel
lights and indicators flash on and off.
The lamp test continues on the system control panel until you perform another
control panel function or a power procedure. The expansion unit control panel
lamp test is active for 25 seconds and does not flash.
Use this procedure to verify that the lights on the system control panel are
working correctly. If you cannot complete these steps, go to the “Starting Point for
All Problems” in the Problem Analysis information for your system to start
problem analysis.
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 flash on and off?
Yes No
↓ Exchange the control panel or the replaceable unit that contains the
control panel function [system unit backplane (MB1) or tower card
(CB1)]. See “Removal and Installation Procedures” in the Problem
Analysis information for your system.
4. Do the expansion unit control panel lights all come on?
Yes No
↓ Exchange the control panel on the expansion unit.
The lights on the system control panel are working correctly.
This ends the procedure.
Chapter 5. Control Panel Functions 181