Computer Support/Hardware Troubleshooting/Displays

This lesson covers troubleshooting displays.

Objectives and Skills

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

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

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

Multimedia

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