Operation Manual

Instructions Guide
Display Brightness
To change the display brightness, ensure the system is in
standby. Press the ‘Dimmer/Preset’ button (Ref.4) to adjust the
screen brightness.
levels of brightness.
System Reset
Press and hold ‘Info/Menu’ button (Ref.6). Use the ‘Prev’ (Ref.7)
or ‘Next’ (Ref.9) buttons to choose your option.
Choose “SYSTEM RESET” and press the ‘Enter/Snooze’ button
(Ref.5).
The display will show “Press enter key to reset”. Press ‘Enter/
Snooze’ button (Ref.5).
SW Version – Software Version Display
Press and hold ‘Info/Menu’ button (Ref.6). Use the ‘Prev’ (Ref.7)
or ‘Next’ (Ref.9) buttons to scroll through to show software
version “DS540 v1.00”.