User`s manual

6. Menu structure
Barco - OverView D series - Doc-3353-2 - user's manual - Revision 05 - Aug 2005
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6.5.2 Mode
Hot Standby can only be selected if it has been enabled by a Barco technician (special
request).
If Hot Standby is disabled, this mode is grayed out.
Figure 6-12
Lamps menu, Mode
Proceed as follows to select the operation mode
• Use the cursor key to highlight Mode.
• Press Enter to select.
• The currently selected operation mode is indicated by white dot.
• Use the cursor key to highlight the desired operation mode
• Press Enter to select.
A message box is displayed to confirm the selection:
Figure 6-13
Lamps menu, message box to confirm the selection
In Hot Standby both lamps are on. In case of a lamp failure, the light output of the other lamp is immediately
switched to illuminate the optics, and there is almost no noticeable effect on the displayed information: no loss
of information, no impact on quality. Switching time is about one second.
In Cold Standby mode the second lamp is only switched on in case a failure occurs with the active lamp. Since
the second lamp needs about one minute to reach a stable operating temperature, at the beginning the display
will have reduced brightness. The contents of information, however, is available nearly without interrupt.
Auto Switch mode is a special version of the ´Cold Standby mode: the lamps are active in turns. Since the lamp
is switched on some minutes in advance, the takeover of the other lamp is equally percepted as in Hot Standby
mode: no noticeable effect on the displayed information, no loss of information, no impact on quality.
The lamp activation time can be selected between 12 hours and 500 hours. Therefore when selecting Auto
Switch, a dialog pops up to enter the auto switch cycle time: