This guide will help you replace the screen inverter in a Dell Latitude D800 laptop. As in most other models, the inverter board is mounted inside the display panel and located below the LCD screen.
You will find the display panel diagram in the service manual for Dell Latitude D800.
Screen inverter failure symptoms:
1. The laptop starts normally and video works fine for a while but after some time the screen goes very dark. You still can see the desktop but it’s very faint.
2. When you turn on the laptop, the screen lights up for a moment and goes off.
3. You can light up the screen for a short period of time by pressing on the lid close switch.
You can search for a new screen inverter for Dell Latitude D800 laptops here.
By the way, when the inverter board fails, you still can use the laptop with an external monitor connected to the VGA port.
1. Turn off the laptop.
2. Connect an external monitor.
3. Start the laptop, it should detect the external monitor automatically. If the external monitor is not detected, try switching video from internal to external mode using Fn+F8 key combination.
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July 22nd, 2010 at 10:19 am
thony,
What do you mean the desktop don’t come at all? The screen is completely black and blank?
Take a closer look at the screen, maybe the image is still there but it’s very dim?
July 19th, 2010 at 10:18 am
my laptop screen back light comes during booting and goes off again with the desktop still appearing. from the solution and cases read i think it can be the fault of the inverter board but sometimes the desktop don’t come at all. what problem could be that?