User manual

20
8 Help with malfunctions
Minor things can happen which visibly affect the performance of a Braille display but
which cannot be called a “real malfunction. A few examples and hints are described
below.
1. The Braille display shows no characters.
Check that the device is switched on.
Has a program been launched which is accessing the Braille display’s port?
Check that the correct protocol has been loaded.
Was the correct port selected when the screen reader was loaded?
2. The display is seemingly showing the wrong characters.
Check the cable connection to the computer.
3. After switching on there is no reaction from the display either when the
System Menu is called up or a computer application is launched.
If VarioPro does not react, turn off the power supply, pull out all plug connections and
reinsert them after ca. 2 minutes. If the System Menu is still not displayed or the pins
flicker quickly, please contact the Service department.
4. VarioPro is switched on and the display suddenly stops reacting.
You have not used the display for longer then the auto-power-off time limit. Move the
cursor to ‘wake up’ the display.