Daewoo Kalos radio won't turn on

My car is Daewoo Kalos 1.4 2004 Sedan.

A few days ago my car radio was working fine. Then meanwhile I was driving, it just turned off. I couldn't turn it back on anymore. After a night, the radio power turned on with clock showing but I couldn't turn the radio on. Every time I tried to turn it on, it went back off after a second. My radio still had power. Now the radio has no power at all and it wont turn on. I checked the fuses but they didn't seem broken to my eye.

What could be the problem?