IBM SY44-5902-05 manual N S

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
0 2 _ _ B _ _ N _ _ _ _ S _ < _	Use the Increment or Decrement buttons to
	scroll through the IPL speeds.
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
0 2 _ _ _ _ _ _ _ _ _ _ _ _ _ _	Press Enter to select the IPL speed and exit
	function 02.
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
0 1 _ _ _ _ _ _ _ _ _ _ _ _ _ _	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