SIMATIC Box PC 627 
Operating Instructions, Release 05/2006, A5E00362052-03 
13-1 
Troubleshooting 
13
13.1  13.1 General problems 
 
This chapter provides you with tips on how to localize and troubleshoot frequently occurring 
problems. 
 
Problem   Possible causes  To correct or avoid error 
There is no power supply 
to the device. 
•  Check the power supply, the network cable and the power plug. 
•  Check if the On/Off switch is in the correct position. 
The device is not 
operational 
Device is being operated 
outside the specified 
ambient. conditions 
•  Check the ambient conditions. 
•  After transport in cold weather, wait approximately 12 hours 
before switching on the device. 
The monitor is switched 
off. 
Switch on the monitor. 
The monitor is in "power 
save" mode. 
Press any key on the keyboard. 
The brightness button has 
been set to dark. 
Increase the screen brightness. For detailed information, refer to the 
monitor operating instructions. 
•  Check whether the power cord has been properly connected to 
the monitor and to the system unit or to the grounded shockproof 
outlet. 
•  Check whether the monitor cable has been properly connected to 
the system unit and to the monitor. 
The external monitor 
remains dark. 
The power cord or the 
monitor cable is not 
connected. 
If the monitor screen still remains dark after you have performed 
these checks, please contact your technical support team. 
The mouse driver is not 
loaded. 
1.  Check whether the mouse driver is properly installed and present 
when you start the application program. 
The mouse pointer 
does not appear on 
the screen. 
The mouse is not 
connected. 
Check whether the mouse lead is connected to the system unit. If you 
are using an adapter or extension for the mouse lead, check the 
connectors. 
Should the mouse cursor still not be visible on-screen after 
completing these checks and measures, contact technical support. 
Wrong time and/or 
date on the PC. 
 
1.  Press <F2> within the boot sequence to open the BIOS Setup. 
2.  Set the time and date in the setup menu. 
Although the BIOS 
setting is OK, the time 
and data are still 
wrong.  
The backup battery is 
dead. 
In this case, please contact your technical support team.