Display Problems - Bosch DCU 220 User Manual

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Display Problems

Nothing appears on the screen.
During operation, the screen may automatically turn off as a result of power

management. Press any key to see if the screen comes back.
The brightness level might be too low. Increase brightness.

The display output might be set to an external device. To switch the display back to the

LCD, press the Fn+F5 hot key or change the display through the Display Settings
Properties.
The characters on the screen are dim.
Adjust the brightness and/or contrast.

The display brightness cannot be increased.
As a protection, the display brightness will be fixed at a low level when the surrounding

temperature is too high or too low. It is not a malfunction in this situation.
Bad dots appear on the display at all times.
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.
Clouding happens on the screen when you exert forces on the left or right side of the LCD
frame.
This is a normal phenomenon, not a defect.
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1 689 989 330 | 2016-11-30 Robert Bosch GmbH