IBM 5531 Operator's Manual page 137

Problem Determination Procedures
Test 2400 - Enhanced Graphics Adapter
(continued)
26. Did the following appear on your screen, and are the colors correct?
Note: Text in illustration is black for clarity.
YES - Press Y; then
~he
Enter key. Continue with the next step.
NO - Press N; then the Enter key. Record the error message and have the unit that
contains the adapter serviced.
5-2400-24
Operator's Guide