Runco Quantum Color Q-750i Series Installation & Operation Manual page 87

Operation
Test Patterns: The Q-750i has numerous internal test patterns that are useful to
technicians for advanced calibration, measurement and fault isolation purposes. To
access them, select Test Patterns from the Service menu and set it to On.
The available test patterns are:
• White
• Black
• Red
• Green
• Blue
• Cyan
• Magenta
• Yellow
• ANSI Checkerboard
• Horizontal Gray Ramp
• Focus Grid
Press or on the remote control unit or built-in keypad to cycle through the test
patterns.
The OSD menus are not available when in "test pattern" mode.
Note
To turn test patterns off, press any key other than or on the remote control unit.
Altitude: Select Altitude from the Service Menu to control the operation of the projector's
cooling fan.
In most cases, the default setting (Auto) maintains the correct operating temperature. If
the projector frequently turns off due to overheating, or in certain high-altitude operating
environments, you may need to change this setting to High.
Q-750i Series Installation/Operation Manual 71