IBM B50, Service Manual

Page: 63 / 198

Step 1540-20
1. Insert the diagnostic CD-ROM into the CD-ROM drive.
2. Turn off the power.
3. Connect one of the external devices that was disconnected in “Step 1540-2” on
page 2-18 in the following order:
Note: If the device has a power switch, ensure that the device is turned on.
a. SCSI devices connected to the external SCSI connector
b. Device connected to serial 1
c. Device connected to serial 2
d. Device connected to parallel port
4. Turn on the power.
5. When the keyboard indicator is displayed (the word
keyboard
on an ASCII
terminal or the keyboard and hand icon on a graphical display), press the F5 key
on the directly attached keyboard or the number 5 key on an ASCII terminal.
6. If the Console Selection screen is displayed, choose the system console.
7. Enter the appropriate password if you are prompted to do so.
Is the "Please define the System Console" screen displayed?
NO Either the last external device that you connected or the system board is
probably defective.
To test each FRU, exchange the FRUs in the following order:
1. If the failure is related to an external device that you are responsible
for servicing, follow the service procedures for that device.
Otherwise, contact the vendor (or have the customer contact the
vendor) to have the device serviced.
2. System board (see note 3 on page 2-1).
Repeat this step until all the listed devices are connected.
YES Repeat this step until all the listed devices are connected.
Go to “Step 1540-21” on page 2-34.
Chapter 2. Maintenance Analysis Procedures (MAPs)
2-33