Lady in distress. Acer Aspire 5732Z Screen not coming on?

Hi, I could use some help. When I start my Acer Aspire 5732Z the following happens:

1. The power 'on' light comes on (as usual) and the Hard Drive light flicks on and off intermittently (as usual.)
2. You can hear the Hard Drive and CD Drive 'humming' (as usual.)
3. BUT, the LCD display changes color from dark black to light black, as if the display is on, but nothing shows up on the screen at all. Nothing about BIOS or Windows, absolutely nothing at all (no flickering, no lines, nothing.) It just continues showing the lit up black screen with no text and doesn't display anything at all, no matter how long I leave it on.

I've tried a few things:

1. I hooked up the laptop to an external screen and nothing shows up on that either, so I'm thinking that it's probably not an LCD issue (but please correct me if I'm wrong.)
2. I also tried taking the power cable/battery out, holding down the power button for 60 seconds and than plugging the power cable back in, but nothing has changed.
3. I carefully took out the 4GB memory and replaced it. Still nothing.
4. Took out the SATA HD and used it on another computer without any problem. It seems to be working fine.
5. Bent the LCD carefully all the way back 180 degree to make sure it wasn't the lid switch.

If the laptop won't work with an external screen, than it seems that I can rule out the following:

- Not the LCD
- Not the Backlight as the black screen does 'light up' to 'light black' from dark black.
- Not the Power Inverter Cable as there does appear to be LCD power ('light black screen') and the laptop doesn't work with an external monitor.
- Not the display switch
- Not the HD (as it works fine on another laptop).
- Not the powerjack or supply as the CD Rom spins with a disc and I can hear the HD.
- Probably not the Memory, as it's composed of two 2GB modules, so the odds of both of them failing doesn't seem likely.

The only other thing that I can think of, is that it's a faulty 'motherboard' Could anyone else concur or offer me some advice? Thanks!

 

Was this laptop ever dropped ? It is either the screen burned out or your motherboard blown a capacitor..

 

No, it happened very suddenly when I turned it on one day, so I think you are right about the motherboard. Thanks for the help Ghostman!