Ps3 restarting problem - need help

[yuvi161292]

I have 320gb ps3 slim
I have rogero 4.something version in it
I started my ps3 after about a month and it is having problems now
When i start it , it boots normally the screen comes and just then it itself switches off then starts again then again the same thing happens
I even reset it but the cycle keeps going on
Any suggestions on whats wrong with it ?? Also where i could get it repaired in NCR?
Any help is appreciated

 

[Pribhat Singh Sharma]

Have you tried resetting it?
To reset:
Press and HOLD the power button for about 10seconds.. There will be a BEEP sound. Release the button.
It will then boot normally, and will ask you about the display settings.
Hope this helps.