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Keystone UP 
Navigates and changes settings 
in the OSD.
Adjusts Vertical Keystone.
MENU
Opens the OSD.
Keystone LEFT 
Navigates and changes settings 
in the OSD.
Adjusts Horizontal Keystone.
Keystone
Opens the Keystone OSD 
page.
Keystone DOWN 
Navigates and changes settings 
in the OSD.
Adjusts Vertical Keystone.
EXIT
Returns to the previous OSD 
page.
Keystone RIGHT 
Navigates and changes settings 
in the OSD.
Adjusts Horizontal Keystone.
ENTER
Enters and confirms settigns 
in the OSD
MHL
Enables the Mobile High-
Definition Link technology 
feature for smart devices.
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