What Does a Backlight Inverter Board Do?

Written by russell huebsch
  • Share
  • Tweet
  • Share
  • Pin
  • Email
What Does a Backlight Inverter Board Do?
An inverter board powers the backlight. (full hd lcd tv image by mattmatt73 from Fotolia.com)

A backlight inverter board is a common source of LCD backlight problems and can fool people into thinking their monitor is dead. The inverter works much like a battery for the LCD monitor.

Other People Are Reading


The inverter powers the backlight on your LCD monitor. The motherboard's voltage, usually a few volts, is insufficient for an LCD screen which needs a few hundred volts.


If the inverter on your monitor fails, you will have trouble viewing your screen. Common signs of inverter failure include a dark screen or black screen and a "buzz" noise from the bottom of the screen.


The average person can install a new inverter board themselves. On standalone monitors, you pry open the monitor case with a screwdriver. On a laptop, unscrew the bezels in the corner. Some find this process easier because you only switch the input/output cables and do not need new drivers.

Don't Miss

  • All types
  • Articles
  • Slideshows
  • Videos
  • Most relevant
  • Most popular
  • Most recent

No articles available

No slideshows available

No videos available

By using the eHow.co.uk site, you consent to the use of cookies. For more information, please see our Cookie policy.