Technical data

Troubleshooting, Continued
Table C–2 (Continued) Monitor Problems
Symptom Possible Cause Corrective Action
Contrast and
brightness
controls are
set incorrectly.
Adjust the contrast and
brightness controls. Refer
to the monitor guide for
more information.
Alternate console
switch is not set
correctly.
Turn off the system.
Change the alternate
console switch to the
down (off) position. Use
a small pointed object.
Do NOT use a pencil to
set the switch. Turn on
the system. Turn on the
system box last.
System board or
graphics board
failure.
Use the diagnostics LEDs
on the front to interpret
the error code and identify
the failed FRU.
Continued on next page
C–7