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Threshold, the display will provide low battery indication and send the Low Battery
event to the CPU.
•
Drops in car battery voltage.
If battery voltage falls below the Critical Low Battery Threshold for 20 seconds or
more, the device will send the Cranking event to the CPU, execute critical shut down
and power itself off.
•
Over-current event
If during normal operation, the current consumption exceeds the Critical Current
Consumption Limit, the device will execute critical shut down and power itself off.
•
Over-voltage protection
If during normal operation, the car battery voltage level exceeds the Critically High
Battery Limit, the device will execute critical shut down and power itself off.
Refer to Appendix D for absolute values of display thresholds.
CAUTION:
The device automatically shuts down then the internal temperature (equivalent to ambient)
exceeds the upper limit of the valid range. Never turn on the device until it cools down.
CCFL Heater
The Standard Brightness display is equipped with a heater that allows the LCD panel to work
at low temperatures. The display activates the heater if an internal temperature falls below
the Heater Low Threshold. Once the internal temperature exceeds Heater High Threshold,
the display turns the heater off. Steady yellow temperature LED indicates that the heater is
on.
Refer to Appendix D for absolute values of display thresholds.
Standby
The display enters low-power mode following CPU standby state. In that case, the display
closes the backlight and suspends all USB accessories connected to it.
The display can initiate the CPU standby if the Power button is configured to enter the CPU
into a low-power state. For details about this option, refer to the help file attached to
Windows Power Options (Start
In addition, you can configure a function key so that its pressure initiates the CPU standby.
Refer to the Function Key description for details.
Wake Up
The display can wake up the CPU using the following methods:
•
A touch to the digitizer panel (touch-screen)
•
Press on the emergency key
•
Press on a function key
•
Press on the rotary knob
•
Scrolling of the rotary knob left or right
•
Wake up event from an USB HID device connected to the display
•
Power button (if configured)
Settings
Control Panel
MW810 Display Owner's Manual 23
Power Options).
6802982C85-C
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