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Computer Support/Hardware Troubleshooting/Displays

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Computer Support
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This lesson covers troubleshooting displays.

Objectives and Skills

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Objectives and skills for the troubleshooting displays portion of A+ certification include:[1]

Given a scenario, troubleshoot common video, projector and display issues.
  • Common symptoms
    • VGA mode
    • No image on screen
    • Overheat shutdown
    • Dead pixels
    • Artifacts
    • Color patterns incorrect
    • Dim image
    • Flickering image
    • Distorted image
    • Distorted geometry
    • Burn-in
    • Oversized images and icons

Readings

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  1. Wikipedia: Defective pixel
  2. Wikipedia: Image persistence

Multimedia

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  1. YouTube: Troubleshooting Video and Display Issues - CompTIA A+ 220-901 - 4.3

Activities

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References

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  1. ↑ CompTIA: A+ Certification Exam Objectives - Exam 220-901
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