Siemens PC 670 - Manual (Page 125)

Fault Diagnosis Release 04/02
6-5 Panel PC 670 Computing Unit, Equipment Manual
6.5 Computing Unit Time and/or Date are Not Correct
Remedy
Correct the time and date in the Setup menu.
Press F2 during the boot routine to call in the Setup menu (refer to Chapter 5).
Note
If the date and time remain incorrect after switching the unit off and on again, the
battery is empty.
Information on changing the backup battery is available in Chapter 4.3.
6.6 USB Device Does Not Work
The USB interface is not detected by the operating system. It is only fully
supported, at present, by Windows 98, Windows 2000 and Windows XP. In the
case of Windows NT, only the connection of a USB keyboard and USB mouse are
supported.