Computer monitor salvage can be a fearsome proposition to some because of the necessity to sometimes open up the monitor’s case in order to fix display backlight or cable issues. Despite this likely necessity, you don’t need to have an existing base of computer repair knowledge in order to salvage your malfunctioning computer monitor. The only tool you will need for checking brightness settings, restoring your backlight, or reconnecting your LCD cable, is a Phillips head screwdriver.
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Things you need
- Phillips head screwdriver
Check the brightness settings before attempting any elaborate repairs or advanced salvage attempts. The brightness of the monitor may simply have been accidentally turned all the way down, resulting in a screen that appears to be black and malfunctioning. There will be brightness settings keys on the bottom face of the monitor and usually on the top of your computer’s keyboard.
Turn off your monitor and disconnect it from any power source.
Open up your monitor’s case to check on the inverter cable and the possibility of backlight failure. The inverter cable governs the use of the monitor’s backlight. Look along the bezel, which is the perimeter piece that runs around your monitor’s actual screen. There will be screws along this bezel covered with seals or plastic caps for aesthetic reasons. You can pry these caps off with your fingers or the edge of a flat object, like a flathead screwdriver’s tip.
Remove the screws using a Phillips head screwdriver.
Remove the bezel. It will still be held in place by small plastic latches that reside between the bezel and the back of the display’s case. Use your fingers to pry around the bezel’s perimeter to unhinge these latches and remove the bezel, or incorporate the use of an aid, such as a guitar pick, to wedge between the bezel and the latches.
Find the inverter cable at the bottom centre of your computer monitor. With the bezel gone, you will see this black cable lying atop the inverter board where it is supposed to run into a socket on this board. If it has come loose from this socket this will explain your monitor’s backlight failure.
Lift up on one edge of the inverter cable, slide in the inverter cable, and press down on the socket to place it back into the position.
Delve further if the inverter cable does not remedy your monitor issue. Remove the metal brackets on either side of the display. These brackets have a number of screws holding them in place. Remove the screws with the Phillips head screwdriver and take off the brackets.
Slide the LCD screen partially away from the display’s back casing to reveal the LCD cable. This cable runs from the rear of the screen down into the monitor assembly, where it connections via a socket nearly identical to the inverter cable socket.
Ensure the LCD cable is in its socket. If not, lift up on one side of the socket, slide the LCD cable back in, then push down on the LCD cable socket to lock it in place.
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