IBM RS/6000 44P Series 270, Service Manual

Page: 75 / 346

Step 1540-9
1. Turn off the power.
2. Reconnect the system console.
Notes:
a. If an ASCII terminal has been defined as the system console, attach the ASCII
terminal cable to the S1 connector on the rear of the system unit.
b. If a display attached to a display adapter has been defined as the system
console, install the display adapter and connect the display to it. Plug the
keyboard into the keyboard connector on the rear of the system unit.
3. Turn on the power.
4. If the ASCII terminal or graphics display (including display adapter) is connected
differently than it was previously, the Console Selection screen appears and
requires that a new console be selected.
5. When the keyboard indicator is displayed, press the F1 key on the directly attached
keyboard or the number 1 key on an ASCII terminal to start the system
management services.
6. Enter the appropriate password if you are prompted to do so.
Is the SMS screen displayed?
NO One of the FRUs remaining in the system unit is defective.
In the following order, exchange the FRUs that have not been exchanged:
1. Go to the problem determination procedures (test procedures) for the
device attached to the S1 serial port or the display attached to the graphics
adapter, and test that device. If a problem is found, follow the procedures
for correcting the problem on that device.
2. Graphics adapter (if installed).
3. Cable (async or graphics).
4. I/O board (see note 4 on page 27.)
Repeat this step until the defective FRU is identified or all the FRUs have been
exchanged.
If the symptom did not change and all the FRUs have been exchanged, call
service support for assistance.
If the symptom changed, check for loose cards and obvious problems. If you
do not find a problem, return to “Step 1540-1” on page 51 and follow the
instructions for the new symptom.
YES Go to “Step 1540-10” on page 58.
Chapter 3. Maintenance Analysis Procedures
57