Test 400 -Monochrome Display And Printer Adapter - IBM 5531 Operator's Manual

Test 400 - Monochrome Display and Printer Adapter
1. Do you have an IBM Monochrome Display and Printer Adapter installed in your system?
NO - Continue with the next test.
YES - Did the following appear on your screen?
NO - Continue with the next step.
YES - Record the error message, and have the system unit serviced.
Chapter 5. Problem Determination Procedures
5-400-1