Alienware A51 M17x R1 - Screen not working at all

Hi

I just got my laptop back from a repair shop, fixing my hinge and DC jack, and they told me that my screen was no longer turning on. When I brought it home, I figured that it b/c of the back light lamp, but I can't see anything at all.

The keyboard works fine, the WiFi and Hard Drive lights are on, but the laptop only makes beeping noises anytime I press a key for too long. I was told it may be a motherboard problem, being told that the DC jack may have shorted it out 'cause the old one was burned. All I know it that it was working fine until I got it back from the repair shop.

Specs (AFAIK):
-Area 51 M17x R1
-2 7200rpm HDD (500GB, 300GB)
-2 ATI Mobility Radeon 3870x GPX cards
-Windows 7 Ultimate
-8GB RAM
-1440x900 LCD screen

Before I get a replacement motherboard, is there any way I could try and fix this myself? Anything I could try? I'll do my best to get back ASAP.

 

If it was working before, why you don't make the repair shop to fix it? It could also be a bad ATI.

 

Try hooking it up to an external monitor. If everything works fine on an external, then they may not have connected the LCD cable correctly.

If you still get nothing on the external, turn it on and wait a few minutes to give it time to boot into Windows.

After you've given it sufficient time to boot, hit the Windows key, then the right arrow key, then enter. That's basically how you choose to shut down without using the mouse. If your laptop responds and shuts down, then I would say to keep chasing the LCD issue.

And I seriously don't know what kind of shop would give a laptop back to a client that no longer worked, especially when it DID work when they received it.

 

Nothing shows up on external, HDMI or projector-wise. And when i turn it on, it seems like nothing happens. When i press keys, they just start beeping each time they're pressed, and when I press the power button to turn it off, it shuts down immediately with one press, not by holding it down.

And im not sure if it was something I had done before I took it b/c i couldn't get it turned on (battery is crap ), so I couldn't check if it still worked or not.

I'm sure its some hardware error of some kind, and I've already purchased a new motherboard, should be here in a few days. And if I can't get it fixed, I'm just gonna have to break and sell it to some one who can fix it, and just buy a new laptop.

 

You shouldn't buy the motherboard without knowing if its the motherboard. It could still be one of your ATI cards. But well you already bought it, so let us know.