RGBlink VSP 628S User Manual page 112

Reset: If appear wrong operation, click "Reset" to factory default.
Key Lock: If slide block is gray, it is unlock, and VSP 628 keys can normally
operate; And if slide block is green, the VSP 628 keys lock, and user can't
operate any button.
Dimmer: ALPHA transparency regulation. Drag ball to change the
transparency value, transparency value is between 0 ~ 100 levels.
Note
Operation is invalid in PIP mode.
VSP 628S User Manual 112