Acer Travelmate 5520 display fault? Please help!

Hello!

Sorry my poor english!!

My old Acer Travelmate 5520G screen is blank and black. These maybe reason something overheating. I opened laptop

and cleaned it from the dust but this was no any helping. Screen is dead.

I have looked online used motherboards from eBay but there are rather expensive and I am not 100% sure where the real problem is.

The Laptop also has separate graphics card:

http://www.ebay.com/itm/ATI-Radeon-HD2400-HD-2400-XT-M74-M-MXM-II-Video-Graphics-VGA-Card-DDR2-256MB-/140832420887

I found from eBay quite inexpensive and new motherboard, but there is no any slot to separate graphics card. I am not

100% sure is this suitable for my laptop. In the new one there is no any DVI-output, but that is ok for me. Most important is that I can repair my laptop wasting less money..

Also I think is there support for BIOS for little bit different motherboard?

This is board what I am planning to buy? There are so many sellers, who are cheap and trusted? Links please.

Can I use the following motherboard without any harm or problems, all other laptop component are good.

http://www.ascendtech.us/acer-travelmate-5520-laptop-motherboard_i_mblacemb484t70m.aspx

What are the most suitable motherboard for my 5520G, I mean physically and bios supported? I don't need the separate graphics card and DVI-D output, so I save lot of money.

I think the following motherboards are suitable for my 5525G, is that right? Acer TravelMate 5520, 5520G, 7520, 7520G, and Acer Aspire 5420 motherboards?

I really like to know. Is there still another display GPU integrated in my motherboard or not because new board and old one looks so similar by components layout. I wondering where GPU chip is located in the pictures of new motherboard?

All good tips are more than welcome to tes and repair my Acer Travelmate 5520G. I already test by external display but same result, no any picture.

Information on the bottom label:

5520G-402G16
s / n: LXTKP0X0347330C32E2000
snid: 73304996620