
Chapter
5:
Trouble Shooting Checklist
Symptoms
and
Suggestions
Symptom
No response from the
main unit.
No screen display.
Poor screen display
quality
Suggestions
• The
ON/OFF
switch
should
be
in the
ON
or
"I"
position.
• Make sure the outlet itself works.
• The power plug may be improp-
erly connected to the back of the
system unit.
• Monitor cable is not properly con-
nected to the Monochrome Graph-
ics/Color Graphics Card
• Monitor power cable
is
not
plugged
in properly
• The monitor's power switch
18
not
turned on.
• The brightness or contrast knobs
on the monitor are not properly
adjusted.
• The small slide switch on the
Monochrome Graphics/Color
Graphics Card
is
not set correctly.
Set to "MDA" for monochrome
TTL monitors, or "CGA" for
RGB color monitors.
• Brightness or contrast knobs on
the monitor
are
not properly
adjusted.
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