Step 5. Do The Display Check - IBM 3270 Hardware User's Manual

Step 5. Do the Display Check
Do not do this step unless you were told to by
Symptom 4 in the POST Error Chart.
This check is for the:
• IBM 5272 Color Display
• IBM 5151 Monochrome Display
Do this check only if your screen is blank,
unreadable, unstable, incorrect, or matches one
of the symptoms shown below:
Too Dim
Too Short
Tilted
CI
•
Too Wide
Shrunk
Out of Focus
CI
•
CI
~r~f·/~
•
T~~ Narr~w
Changes Size When
Brightness Control
Turned
Chapter 5. Locating Problems with Your PC Units 5-17