You can lock menu settings to prevent an operation error on Sony VPL-XW6000 Projector.
Menu Operation for Settings Lock
- Press the MENU button.
- Select
[Function] – [Settings Lock] – the desired setting.
Menu Settings Lock Description
[Off]
Settings Lock is canceled.
[Level A]
The following are not displayed in the menu and cannot be operated.
- Settings other than [Calib. Preset] in the
[Picture] menu
[Level B]
The following are not displayed in the menu and cannot be operated.
Settings other than [Calib. Preset] in the [Picture] menu. Settings other than [All Reset] in the 
[Setup] menu. [Dynamic Range] in the [Function] menu. [Test Pattern] in the [Function] menu . All items in the 
[Installation] menu.
Read more:
Sony VPL-XW6000 Projector Brightness Adjustment Guide
