About the control lock

As described in “Control lock”, the control lock can be enabled to avoid unwanted access to the front and OSD menu. When control is locked, the front menu cannot be accessed but will make the OSD lock window appear. Only after pressing the correct sequence of keys, the front menu can be accessed.

To unlock the menu

1. Unlock the front keyboard (see “Front keyboard locking/unlocking”).
2. When the OSD lock window appears, press the following key sequence to unlock the menu: left - right - right - up