Fisher PDG-DWT50L - Manual (Page 60)

4. Convenient Features
51
Preventing the Unauthorized Use of the Projector
The projector has a built-in security feature to lock the OSD control panels and deny remote control operation. The security
feature has no default keyword; in the first instance of enabling the security feature, the user must define a keyword.
Locking the Projector
To setup the security keyword, refer to the following guide.
1.