Checking The System Control Panel - IBM Application System/400 Service Information

b. The 9401 must be in manual (M) mode
to power off. To select manual mode
see "Selecting IPL and Mode" on
page 5-2.
7
Press the Power button on the control
panel.
The Power On light will begin to blink as
the system is powered off. The light will
stop blinking and stay off when power off is
complete.
8
Disconnect the power cable from the power
outlet.
9
Exchange the following part:
• OOOO-Chassis See ''Type and Part
Number List" on page 2-62 to deter-
mine the part and see "Chassis" on
page 4-2 for the procedure.
1 0
Verify the problem is fixed by performing a
power on and power off.
Notes:
a. Connect the power cable to the power
outlet.
b. Verify that the AC power switch is set
to the On position.
This ends the procedure.
Checking the System Control
Panel
Perform this procedure with the system powered
off.
1
Press the up button on the control panel.
Can you select function 11?
Yes No
~ Continue with step 4.
This ends the procedure.
2
Press Enter on the control panel.
Is an SRC displayed?
1-8
AS/400
9401 Service Information
No Yes
Go to "Unit Reference Code
Tables" on page 2-3.
This ends the procedure.
3
Exchange the chassis. See "Type and Part
Number List" on page 2-62 to determine
the part and see "Chassis" on page 4-2 for
the procedure.
This ends the procedure.
4
Is the system Attention light on?
No Yes
~
Exchange the chassis (see
"Chassis" on page 4-2).
This ends the procedure.
5
Press the Down button until 04 is shown in
the Function display.
Can you select function 04 (Lamp Test)?
Yes No
~ Exchange the chassis. See "Type
and Part Number List" on
page 2-62 to determine the part
and see "Chassis" on page 4-2 for
the procedure.
This ends the procedure.
6
Press the Down button.
Does the following occur?
• The 5 x 10 dot pattern for each char-
acter disappears
• 01, 02, or 03 appears in the
Function/Data display
• The Power On light goes off
Note: This light goes off only if the
system was not powered on before you
performed this check.
• The Processor Active light goes off
Note: This light goes off if the system
powered down. This light may blink if
the system powered on.
• The System Attention light goes off