IBM 2193 Hardware Maintenance Manual page 85

Table 2-3 Error Symptoms List
Error Symptoms Action/FRU
NOTE: To diagnose a problem, first find the error symptom
in the left column. If directed to a check procedure, replace the
FRU indicated in the check procedure. If no check procedure
is indicated, the first Action/FRU listed in right column is the
most likely cause.
Video and Monitor
Video memory test Remove all non-factory cards.
failed.
Load default settings (if screen is
Video adapter failed.
System board
Display problem: Monitor signal connection/cable.
- Incorrect colors
Monitor
- No high intensity
System board
- Missing, broken,
or
incorrect
characters
- Blank
monitor(dark)
- Blank
monitor(bright)
- Distorted image
- Unreadable
monitor
- Other monitor
problems
Display changing Monitor signal connection/cable
colors.
Monitor
System board
Display problem not "Monitor" on page 91.
listed above
Load default settings (if screen is
(including blank or
illegible monitor).
System board
readable).
readable).
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