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Hp dv650 what could be the problem with my laptop since its not displaying yet its on

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First, connect an external monitor to your computer. Can you see the display now ? (my computer has a VGA port and an HDMI port for output to an external monitor or TV. There is also a keyboard button, on my laptop it is F4, for switching between displays, internal/external/both. You will obviously need an appropriate cable for this test). If you can see a picture on an external display, then the problem is not with computers graphics hardware.

For the next stages you will need detailed information about your laptop as can only be found in the service manual or such. If you are lucky these may be instructional articles on various websites (eg Inside My Laptop) or YouTube videos showing you how to carry out certain tasks.

It might be that the small ribbon connector between the m/b of your laptop and its display has become disconnected. If so, this may easily be replugged in (this will require some disassembly of your computer).

It could be the screen your laptop is defective. It is often a component called the inverter which fails, or simply the backlight (CCFL in most). Either of these will need a new replacement part. Before starting on any work you will need to thoroughly diagnose the fault to be certain what is wrong. You can do this yourself, but it is quite an involved procedure and you will need instructions for your particular laptop (if you are lucky someone will have made a video, else you will have to rely on the manufacturer's service manual).



Posted on Apr 13, 2014


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