Planar PD8130 Installation And Operation Manual page 76

Operation
The OSD menus are not available when in "test pattern"
Note
mode.
To turn test patterns off, press any key other than
unit or built-in keypad.
Altitude: Select Altitude from the Service Menu to control the operation of the
projector's cooling fan.
In most cases, the default setting (Auto) will maintain the correct operating
temperature. If the lamp frequently turns off due to overheating, or in certain
high-altitude operating environments, you may need to change this setting to
High.
62 Planar PD8130/PD8150 Installation/Operation Manual
or on the remote control