What to look for
- Inspect at normal brightness and normal seating distance before moving close.
- Use gray for broad uniformity or dirty-screen patterns; pixel fixers are not for patches.
- A connected computer browser cannot replace the TV’s built-in self-test.
- Do not repeatedly run manual pixel cleaning beyond manufacturer instructions.
Use this order
- Open the quick test in the TV browser or connected device.
- Check black, white, RGB, then gray.
- Run the TV’s built-in picture/self-diagnostic.
- For OLED, follow the exact model’s maintenance instructions.
- Photograph persistent defects and check coverage.