IBM 7026-H80 - RS/6000 - 256 MB RAM Service Manual page 95

Symptom
You have parts to exchange or a corrective
action to perform.
You need to verify that a part exchange or
corrective action corrected the problem.
You need to verify correct system operation.
A Repeating Pattern of Error Code Data Appears on the Primary I/O Drawer Operator Panel
A sequence of displays, each appearing for five
seconds, repeats continuously as follows: A
blank display, followed by an eight-digit error
code, followed by up to nine full panels of dump
data.
OK Does Not Appear in the Primary I/O Drawer Operator Panel Display Before Pressing the
A bouncing or scrolling ball remains on the
primary I/O drawer operator panel display or
the primary I/O drawer operator panel display is
filled with dashes.
You have a blank display on the primary I/O
drawer operator panel.
Action
Service Actions
1. Go to the Removal and Replacement
Procedures .
2. Go to the Repair Checkout Procedure in the
Diagnostics Information for Multiple Bus
Systems .
Go to the Repair Checkout Procedure in the
Diagnostics Information for Multiple Bus
Systems .
Go to the System Checkout Procedure in the
Diagnostics Information for Multiple Bus
Systems .
Display
1. Record the 8-digit error code seen after the
five second blank display.
2. Reset the service processor, using the
pinhole reset.
3. Go to "Checkpoint and Error Code Index"
on page 165 with the error code you have
recorded.
Power On Button
If an ASCII terminal is available, connect it to
the primary I/O drawer through serial port 1.
1. If the service processor menu is displayed:
a. Replace the primary I/O drawer operator
panel assembly. Refer to "Operator
Panel" on page 465.
b. Replace the primary I/O drawer
backplane. Refer to "I/O Drawer
Backplane Assembly" on page 447.
2. If the service processor menu is not
displayed, replace the primary I/O drawer
backplane. Refer to "I/O Drawer Backplane
Assembly" on page 447.
If an ASCII terminal is not available, replace the
following, one at a time.
1. Primary I/O drawer operator panel
assembly. Refer to "Operator Panel" on
page 465.
2. Primary I/O drawer backplane. Refer to "I/O
Drawer Backplane Assembly" on page 447.
Go to "MAP 1520: Power" on page 89.
There is an 8-Digit Error Code
Chapter 3. Maintenance Analysis Procedures
77