Troubleshooting a Dell Inspiron 8200 Screen
If your Dell Inspiron 8200 screen is not operating properly, a number of common issues may be affecting its operation, such as a disconnected power cable, a bad battery, a malfunctioning switch or a disconnected inverter cable. While many of these problems sound highly technical, you can troubleshoot for these issues and restore operation of your display even if you lack computer repair experience. You will need only a Phillips head screwdriver for this procedure.
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Instructions
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Ensure that the Dell Inspiron 8200's power adapter has not come loose from the machine or from the wall outlet it is plugged into.
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Check the battery indicator light on your Dell Inspiron 8200 if the display appears dark or unpowered. Your computer's battery may have deteriorated to the point that it can no longer hold a charge: This battery charging issue will cause the battery light on the bottom of the device to flash. If necessary, flip the Dell Inspiron 8200 over and locate the battery release mechanism, which is just below the horizontal battery outline at the top of the unit's underside. Slide the release to pop out the battery for replacement.
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Look closely at the screen. If the screen seems nearly completely dark, but you can make out faint images through the darkness, your screen's backlight has probably failed, but the screen is otherwise intact. You're likely looking at an "LCD closed switch" issue. This switch is a pin-size sensor that detects whether your laptop is open or shut and turns the backlight on or off accordingly. It may be stuck in the "closed" position. This sensor is found just under the monitor's left display hinge. Give it a few vigorous taps to activate the sensor and restore the backlight.
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Open up your screen's casing if the LCD closed switch is not the cause of backlight failure. Remove the screws that run around the bezel's perimeter. The bezel is the black plastic strip that surrounds the actual screen. These screws should still be covered by black plastic seals, so pop these off with your fingers and then remove the actual screws with a Phillips head screwdriver.
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Start at one of the bezel's edges and gently pry the bezel up and off the screen. Set it aside.
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Find the inverter cable. This black cable is located at the bottom center of the exposed screen and plugs into the inverter board right beneath it. It runs into a connector on this board. The inverter cable governs the operation of the screen's backlight, so ensure it has not become disconnected from the connector. If it has, run the cable back into the connector and then snap the connector down into the "locked" position, which will be flat against and parallel to the inverter board.
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References
- Photo Credit laptop image by Jorge Figueiredo from Fotolia.com
