Section 4: Advanced Configuration and Controls
RPMSP-D132U & RPMSP-D180U User Manual User Manual
4-13
020-100245-03 Rev. 1 (11-2010)
4.9.6 Color Wheel Calibration
— Submenu
Adjusts the timing of the color wheel. If the color wheel is incorrectly calibrated, the colors throughout the
displayed image will appear in various unmatched shades.
This adjustment is required whenever the color wheel is replaced. To calibrate the color wheel:
1. From the
Diagnostics and Calibration
menu, access
Color Wheel Calibration
. The color ramp test pattern
will automatically display and the “Color Enable” option will display “White”.
2. Adjust the “Color Wheel Delay” slidebar until the transitions across each color bar in the test pattern
appears smooth.
3. Verify your adjustments by choosing different colors through “Color Enable”. The transitions across each
color bar in the test pattern must remain smooth.
4.9.7 Peak Detector
A method of defining individual input levels to improve the accuracy of input levels set by the “Auto Input
Level
”
function. Enabling “Peak Detector” activates an operating mode for detecting
only
pixels that are
considered black or white, all other levels are displayed as a mid-level gray.
Adjust individual blacklevels and input drives using a 16-step grayscale pattern with black and white bands at
opposite edges of the image. Adjust the levels until both bands are just visible. Images from this source will
then display correct blacks and whites without “crushing” or washing out.
4.9.8 Level Detector
The “Level Detector” checkbox enables a specific threshold for blacks and whites. Input levels that fall below
a specified
Level Value
are displayed as black, and all others are displayed as white. It aids in
Odd Pixel
Adjustment
. To use:
1. Enable
“Level Detector”
and display a continuous grayscale.
2. Set “
Level Value”
to near black (such as 200).
3. Adjust Offsets to minimize area of black stripe.
4. Set “
Level Value”
to near white (such as 800).
5. Adjust Gains to minimize area of white stripe.
4.9.9 Level Value
The “Level Value” defines the value to be used by the Level Detector in recognizing blacks and whites. See
Level Detector, above.
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