How to make sure the netbook matrix is ​​working?

Question

laptops

The matrix on the Acer Aspire One D270 was covered, I bought another from my hands, but did not fit the location of the cable connection connector (I read on the sites that they are compatible). I decided to check the fitting - the backlight does not work. I sin on a faulty inverter, because. sold evaporated and does not answer calls. The connectors on both matrices are 40-pin, hand-bought from the Aspire D250. Can the cable that is different for these models (the connector on the motherboard is different) be the cause of the non-working backlight, or is it the inverter of the purchased matrix that is built-in?
New matrix - Samsung LTN101NT02