Overview

Use this article when a Just Add Power video wall shows an enlarged image, missing content, duplicated content, or images that do not align between displays.

Begin by identifying whether the issue affects one display, several displays, the entire wall, or only one source. Then check display picture sizing, source format, and video wall configuration.

Possible Causes

• A display is applying zoom, overscan, or another picture-sizing adjustment.
• A source is outputting interlaced video.
• Display measurements or Decoder positions do not match the installed wall.
• The wall’s proportions differ from the source content.
• A Mosaic or Artistic Video Wall uses canvas, alignment, or scaling settings that do not match the intended result.

Troubleshooting

1. Identify the Affected Displays and Sources

1. Show the same source across the entire wall.
2. Note whether the issue affects one display, several displays, or the whole wall.
3. Switch to another source and compare.
4. Use a test grid or recognizable straight lines to identify cropping and alignment errors.

If one display is affected, begin with that display’s picture settings and Decoder configuration. If the issue follows one source, begin with that source’s output settings.

2. Check Display Picture Sizing

Each display must show the complete image received from its Decoder.

1. Disable zoom and overscan.
2. Open the display’s Aspect Ratio menu, typically found under picture settings, and select the option that shows the complete incoming image without zoom or overscan. Common option names include Just Scan, Fit to Screen, 1:1, and Pixel by Pixel.
3. Check every display in the wall.
4. For displays of the same model, compare picture settings and firmware versions.

Menu names vary by manufacturer and model. Consult the display documentation instead of assuming that a setting named 16:9 enables or disables overscan.

3. Check the Source Video Format

Set the source to a progressive video format supported by the installed equipment, such as 720p or 1080p. Use 2160p only where supported.

Interlaced formats such as 1080i are not supported for video wall processing. Check cable and satellite boxes in particular.

4. Verify the Video Wall Configuration

Use the appropriate configuration guide:

• Standard Video Wall Setup and Control for 2G Series
• Standard Video Wall Setup and Control for Omega & Ultra Series
• Standard Video Wall Setup and Control for MaxColor Series
• Mosaic Video Wall Setup and Control
• Artistic Video Wall Setup and Control

Standard Video Walls

Confirm the row and column count, each Decoder’s assigned position, and the display orientation. Recheck outside and viewable dimensions using consistent units and the precision specified in the setup guide.

If the image is stretched rather than cropped, compare the wall’s overall aspect ratio with the source content.

Mosaic Video Walls

Recheck canvas dimensions, each display’s viewable dimensions, offsets, rotation, and content alignment. Follow the Mosaic procedure rather than applying Standard Video Wall bezel measurements.

Artistic Video Walls

Recheck the Decoder configuration and Warp Engine rotation and scaling. Fill can place content beyond the canvas; Fit preserves the complete image but may leave black space.

5. Verify the Result

1. Play moving video and check transitions between adjacent displays.
2. Confirm that any hidden content matches the intended bezel compensation or canvas layout.
3. Test every intended source.

If the issue remains, contact Just Add Power Support and provide:

• A photo of the entire wall.
• The affected display positions.
• Just Add Power device models and firmware versions.
• Display models and source output resolution.
• The video wall settings and measurements.