Sony micro system appears dead !!!!!

Hi my Hi Fi appears dead ,I must point out that I am not a electronics Eng
but I like to have a go at fixing whatever ,back to prob I have stripped it
down fist checked all glass fuses OK power seems to be at all PCB boards ,I
thought it might be the ON/OFF switch but looks like a real pig to get
board apart from front panel without some serious damage,whist I was working
on my daughters PS2 (playstation) last year became aware of board mounted
fuses could it be one of these blown or is it possibly terminal ,shame as it
was a good system, any help /links pics whatever would be really
appreciated.
Thanks Phil
please reply to pjmartin.Pyrenees @ntlworld.com