106 RM400 C Models U24802-J-Z146-2-7600
8
Troubleshooting
Monitor screen
remains dark
Monitor not switched on Switch on monitor
Screen has been
automatically blanked
(screen saver)
Press any key
Brightness controller
set too low
Change brightness setting as
described in monitor operating
manual
Faulty connection
between system unit
and monitor
Check connection between system
unit and monitor
Check power connection
Check that power outlet is
supplying power
Check that power switch is on
Connecting cable
attached to standard
SVGA port even with
PCI graphics controller
installed
Repeat installation; attach color
monitor connecting cable to PCI
graphics controller
Monitor remains
dark or bright but
displays no
characters or only
uninterpretable
characters
Monitor incorrectly set Set monitor correctly
Monitor still
remains dark
Note any actions taken and inform
SNI Service
Input from
keyboard not
accepted
Console:
Keyboard cable not
connected
Connect keyboard cable
Graphical monitor:
Mouse connected to
keyboard port and vice
versa
Connect mouse and keyboard to
correct ports
Problem Possible cause Recommended solution
Table 2: Errors when booting the system
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