Certified Technology Specialist (CTS) Practice Exam

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Which device can be used to diagnose whether a display issue is related to color transmission?

Test Pattern Generator
Color Analyzer
Vectorscope
Calibration Tool

The correct answer is: Vectorscope

A vectorscope is particularly effective for diagnosing issues related to color transmission in displays. This device is designed to visualize the color information of a video signal, depicting chrominance in a way that allows technicians to analyze the color balance and saturation of the signal. By observing the output on a vectorscope, users can determine if any color channels are imbalanced or incorrectly transmitted, helping to identify whether the color issue lies within the content, the display system, or in the signal pathway. In contrast, while a test pattern generator can produce specific test patterns to assess the overall performance of a display, it does not specifically analyze color transmission issues. A color analyzer, although focused on measuring color quality and accuracy, is usually used for calibrating devices rather than diagnosing transmission errors. Meanwhile, a calibration tool is primarily designed for adjusting and fine-tuning the display settings to achieve accurate color reproduction rather than troubleshooting color transmission faults.