How to Repair a Benq Monitor

Written by billy kirk
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How to Repair a Benq Monitor
Flat screen displays like the Benq may suffer from backlight failure. (Monitor image by Caila from

The Benq monitor is a flat-screen, liquid crystal display (LCD) designed monitor that unfortunately can suffer from a number of potential malfunctions in the same fashion as similar LCD displays. While opening up the computer and attempting to repair backlight problems and LCD cable malfunctions may seem daunting, perform such self-repair using only a Phillips-head and a flathead screwdriver. No previous experience with Benq monitor or LCD monitor repairs is required. Bear in mind that opening up the monitor's case may void your warranty.

Skill level:

Things you need

  • Phillips head screwdriver
  • Flathead screwdriver

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  1. 1

    Check the VGA cable connection between the Benq monitor and the computer. Ensure the monitor and the computer are still connected and that this cable has not come loose. Also, ensure the power cable for the Benq monitor is in place within the wall outlet or surge protector.

  2. 2

    Adjust the monitor brightness of the Benq monitor if the monitor appears too dark or even completely black. Settings that have been accidentally turned all the way down will result in a monitor that appears to be malfunctioning. Find the brightness keys on the bottom face of the monitor.

  3. 3

    Power down the Benq monitor and disconnect it from the computer it is connected to.

  4. 4

    Open the Benq monitor up for troubleshooting. The bezel is the plastic piece that surrounds the actual screen, and there will be seals or caps along the bezel that conceal the monitor's screws for design reasons. Remove these seals using your fingers or the edge of a flathead screwdriver.

  5. 5

    Remove the Benq monitor bezel's screws using a Phillips-head screwdriver. Pry the bezel carefully off and lay it aside.

  6. 6

    Check the Benq monitor's inverter cable if the monitor has remained dark after checking the brightness settings. This black cable lies atop of and connects to the green inverter board at the bottom of the exposed display. If it is disconnected from the board, the monitor's backlight fails.

  7. 7

    Pull up slightly on the side of the inverter cable socket on the inverter board. This is where the inverter cable is supposed to reside. Slide the cable back in and then press down firmly to set the socket back into the locked position. This will resecure the inverter cable.

  8. 8

    Remove the metal brackets on either side of the exposed Benq monitor if the inverter cable was not the issue. There will be two to three screws in each bracket, depending on your exact monitor model. Remove these with the Phillips-head screwdriver.

  9. 9

    Pull back the screen slightly from the rear casing of the Benq monitor now that the brackets are removed. You will be able to see the LCD ribbon cable running from the back of the screen to a socket on the monitor. Like the inverter cable socket, lift up on this one to reinsert the LCD cable if it has come loose, then push down on the socket to lock it back into position.

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