HP Compaq Presario CQ50-110US Laptop "prome" Questions

I am working on a Compaq Presario CQ50. When I power it up all I see is the power butten light and power light on LED. NO screens no promped NO CPU LED NO Drive LED I removed the RAM, Hard Drive and ...

...comes on. Nothing on the screen and the light for hard drive also does not come on. i solve this prome!!!!!!!!!!!! do you still have this problem????? If it is still under warranty, send it back