eMachines eMD620-5133 Notebook "wont emachine turn monitor" Questions

...emachine and i turn the machine on it powers up but the monitor wont go on, i have no clue whether the motherboard is gone i am hoping not and this happened exacctly 1day after the warrenty ran out, ...

...turn on the wireless switch for the computer, because it wont detect netgear modem,but it was connected no problem yesterday. many thanks Leigh on my computer there is a switch on the front under the ...