Barco MCM-100S User Manual page 154

13. Maintenance and troubleshooting
Scaled patterns
Scaled patterns are generated just behind the input boards and have the same timings of the selected source signal, which means
that they can only be displayed if a source sync signal is available.
If a source image shows some artefacts, but the scaled patterns looks fine, the cause for the artefacts must be looked for in the
input board, the wires or the image generator.
If a source image shows some artefacts and the scaled pattern shows the same artefacts, the cause should be looked for in the
image processing board.
The scaled patterns are distorted according to the geometry distortion defined in the active Geometry file.
Internal patterns
Internal patterns are generated just before the output board and are seen full screen. If the desktop image shows artefacts, but the
internal patterns look fine, then the issue will be found before the output board.
The internal patterns are not influenced by the geometry distortion of the active Geometry file.
Displaying a Scaled pattern
1. In the OSD, navigate to Installation > Scaled patterns.
Image 13-13
2. Open the drop-down menu and select the pattern of your choice.
If you want to remove the scaled pattern, you need to select None in the Scaled patterns menu.
Displaying an internal pattern
1. In the OSD, navigate to Installation > Internal patterns.
150 R5905187 MCM-100S 05/06/2012