How to test a cdi

The ChromaKey Display Interface (CDi) is a useful device that allows users to display images and videos on their television while recording them. However, before using the CDi, it’s important to test it to ensure it’s functioning properly. In this article, we will provide a step-by-step guide on how to test a CDi.

Step 1: Connect the CDi

To begin, connect the CDi to your television and any other devices you plan to use it with. Make sure all cables are securely connected. Some CDIs may require additional power sources or cables, so refer to the manufacturer’s instructions for specific setup requirements.

Step 2: Turn on the TV

Once the CDi is connected, turn on your television and select the appropriate input for the CDi. The input selection process may vary depending on the television model and CDi brand. Select the "Test Pattern" option from the menu to display a series of lines and colors on the TV screen. If everything is working properly, you should see these lines and colors clearly.

Step 3: Personalize the CDi

After successfully testing the CDi, you may want to personalize it for your needs. Some CDIs allow users to adjust brightness and contrast settings or select their preferred display mode. Refer to the manufacturer’s instructions for specific customization options available on your CDi.

In addition to these basic steps, there are other ways to test the functionality of a CDi. For example, you can record video using the device while it’s connected to the TV and then play back the recording to ensure that the image was captured correctly. You can also use software tools designed specifically for testing CDIs, such as ChromaKey Display Interface Testing Software, which provides a more comprehensive range of test options.


Overall, testing a CDi is essential to ensure it’s functioning properly and providing the best possible viewing experience. By following these simple steps and consulting manufacturer instructions if necessary, you can confidently test and personalize your CDi for your needs.

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