Siemens RM400 C Series Operating Manual page 116

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