Siemens PC 670 - Manual (Page 123)

Fault Diagnosis Release 04/02
6-3 Panel PC 670 Computing Unit, Equipment Manual
6.2 External Screen Remains Dark
Cause/Remedy
The following causes are possible:
Monitor is switched off
S
Switch on the screen.
Screen has been dimmed
S
Press any key on the keyboard.
Brightness control set to dark
S Set the screen brightness control lighter. Please refer to the monitor operating
manual for more detailed information.
Power cable or monitor cable not connected
S Switch the monitor and computing unit off.
S Check that the power cable is properly connected to the monitor and to the
computing unit or a grounded shockproof socket.
S Check that the monitor cable is properly connected to the computing unit and
monitor (where a plug is available).
S
Switch the monitor and computing unit on.
Note
If the monitor screen remains dark following these checks and corrective
measures, contact the technical service department.