sonyVPCSA290x won't start

[Bill Frazier]

My Sony laptop was shut down with the power button and now won't start again. The orange battery lite only comes on for 20 seconds when I Connect the power cord however the battery showed full charge before the computer shut down, I have power and have blown air into the exhaust port in case of dust. My laptop is 3yrs 9mos old and has always worked great. I push the power button - nothing happens -I checked the black screen with a flashlight-nothing there- thought maybe an inverter?" Any ideas?

 

[laviniuc]

try starting it without the battery