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Problem with Laptop Screen
By: rekha singh | 07 Mar 2010 8:47 pm
Does anyone know what might be going on here. Yesterday morning I used my Laptop without any problem. In the evening I started it up and although windows loaded I only had the screen for about 10 seconds when everything went dark. I have tried to start it in safe mode but the same thing happens. I know that windows has loaded because I can see a faint imprint of the screen "what is safe mode" which we get when starting in safe mode. If I leave it alone until the Laptop goes into sleep mode and then click on the logon box I see my desktop with all the icons but again after about 10 seconds I get the same dark screen again. Any help appreciated. CommentsIt seems doubtful that this is a screen saver or power saving setting problem as it just started to happen so it could be a problem with the inverter board. Laptop inverter boards (also know as LCD inverter, FL inverter, screen inverter, backlight inverter) come in different shapes and sizes. On the picture above you see some typical looking inverter boards found in laptop The inverter board works as a power supply for the backlight lamp mounted inside the LCD screen. The inverter board converts low voltage DC power (few volts) supplied by the motherboard to high voltage AC power (few hundred volts) needed for the backlight lamp. When the inverter board works properly, the backlight lamp gets power and the LCD screen lights up. As a result, the image on the screen is bright.>
By: rekha singh | 07 Mar 2010
Hi, You can likely connect the laptop to an external monitor and get the external display to work. There is usually a key sequence like That key sequence also has 3 modes usually....LCD only, external only, and LCD+external. Depending on the laptop, the inverter is either separate or included as part of the LCD. Based on your symptom, it's a bad invertor.
By: rekha singh | 08 Mar 2010
Hi, The backlight for the screen is not functioning. Either because the inverter has failed or the backlight bulb itself has failed. The easy way around this for now is to connect a monitor to the video output on the laptop and work from that to print your boarding pass and reserve your seat. Repair it when you get back. If it's the inverter, it is likely easy to replace. Most are located at the bottom of the screen just below the panel, behind the screen bezel. Remove the bezel, unplug the inverter, plug in a new one and test. If the screen works, replace the bezel and you're good to go. Replacing the bulb is a whole 'nother gig and will take someone who is familiar with the process.
By: rekha singh | 08 Mar 2010
Thanks for that. I am assuming that to do that I would need a USB lead. It wouldn't be a USB connection on the tower would it? I was also wondering if I could reconnect the Printer to my tower which was once connected to it. Would it just work as normal without any installation if it was connected before.
By: rekha singh | 08 Mar 2010
You do not say if the printer has a USB connection to your laptop or you use it via a wireless connection to the desktop. If it works via the USB to the laptop then you can see via the Monitor and print it out.
By: rekha singh | 08 Mar 2010
There should be a 15-pin video port on the laptop. If you have another monitor available, plug that in. That will do two things: you can print your boarding passes, and you can prove its the laptop display that's
By: rekha singh | 08 Mar 2010
Don't know which laptop you have but most have an analog video port just like that on a tower. Some of the newer ones have a DVI port or even HDMI but most have a video port. Just connect any working monitor to that. You may also have to toggle a video function using the Fn key and one of the F keys on the laptop. Even my little Acer Aspire one has a video port. Your printer should work if it worked before and you didn't uninstall it just moved it to the laptop.
By: rekha singh | 08 Mar 2010
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