mac book air does not boot

Hello, suddenly my macbookair (first model), freezed and did not respond at all.

I shut it down, performed all the basics (reset trh smc, reset the nvram, poer up with option key holded), but it still does not boot OR because i had the volume muted, i do not hear any sound at booting....

Suddenly the computer's fan does not make sound, once it started up ,i re-check that the start up volume is the internal ssd disk, but once i shut it down, it became the same: the screen is black during start-up, the keyboard does not lit, the power led becomes lit but not responsive, help please........