HP Laptop. Blank screen and caps and num lock lights flashing.

Hi,
I hope you can help me.
My laptop is the HP Pavilion DV6-1216sa, bought new in September 2009. When I turn it on, I get a blank screen, the fan is working and the wifi, volume and mute lights light up. The caps lock and num lock lights flash together, once everyone 3 or 4 seconds. Normally when this happens (it has happened throughout the life of the laptop), I turn it off and turn it back on, and it works again. However this time, the problem persists. I've tried most combinations to get the bios screen up and I've tried getting it to another screen via hdmi and VGA, but no signal received. I have tried everything recommended by the HP support website. I have checked the battery, ram, and hard drive.
Best regards,
Jay

The best cheapest fix is if you can remove the motherboard your self and send it to a refabricator who will check all the chips on the motherboard and reball the bad ones. Cost is about $60-120, closer to the bottom if you can ship them just the board but if necessary they will take the whole laptop and remove the board for you.
eBay auction for repair motherboard only
disassembly included auction
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HP Laptop. Blank screen and caps and num lock lights flashing.

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