When you turn on your laptop computer, you notice that the LCD display is displaying information, but it’s very dark and difficult to read. Which of these would be the most likely cause of this issue?
A) The laptop power supply is faulty
B) The LCD display is faulty
C) The inverters are faulty
D) The video driver needs to be upgraded
E) The LCD is not set to the native resolution
F) Your new sunglasses are very strong
The answer: C) The inverters are faulty
An LCD panel with florescent backlights relies on inverters to convert the laptop’s DC power to AC power. If the inverter is faulty, the fluorescent lights won’t have the power required to provide a backlight.
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Want to know more? Watch “Troubleshooting Laptop Issues.”The small form factor and mobility of a laptop creates some unique technical support requirements. In this video, you’ll learn about troubleshooting LCD video, external monitor issues, input problems, power issues, and challenges with wireless antennas in laptop computers. |