API A790, Руководство по эксплуатации

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Troubleshooting 8-5
I cannot end a Bluetooth connection.
z
If another device is connected to your computer, you can either end
the connection using the other device or by deactivating Bluetooth.
Display Problems
Nothing appears on the screen.
z
If the power-on indicator is not on, check the electrical outlet, the
plugs and power cords.
z
If the power button does not respond to a light touch, press the button
firmly.
z
If you are using battery power, make sure that it has a charge
remaining and that it is installed correctly.
z
During operation, the screen may automatically turn off as a result of
power management. Press any key to see if the screen comes back.
z
The brightness level might be too low. Increase brightness by
pressing the
Fn
+
F6
hot key.
z
The display output might be set to an external device. To switch the
display back to the LCD, press the
Fn
+
F9
hot key or change the
display through the settings in Display Properties.
z
Try turning the computer off, wait for a few seconds, then turn it back
on.
The characters on the screen are dim.
z
Adjust the brightness and/or contrast.
Bad dots appear on the display at all times.
z
A small number of missing, discolored, or bright dots on the screen
are an intrinsic characteristic of TFT LCD technology. It is not
regarded as a LCD defect.
Resolution cannot be adjusted to desired setting.
z
Make sure that the device driver is installed correctly.