My Compaq cq61 136tu won't turn on I press the power button and all I get is 3 light flash. The power light, cd and other one. When I press the power button them three lights flash 3 times and all. How do I get it to work. It was working fine then turned of buy it self the won't turn on.
You probably have a failed motherboard. This is something that needs "hands on" access to diagnose and perhaps fix. A local repair shop can look at it. But, my best guess it will be cheaper to replace the entire computer.