I've got a Panasonic dvd-A160 which has been working happily for the last couple of years, it even survived a DIY chipping
I turned it on this evening got the usual welcome message then up comes 'F894' & the machine just locks, only thing i can do is switch off.
Did a bit iff searching & the only thing i found about F894 was some bloke bought a denon player which had the same code on it out of the box & denon tech support couldn't even tell him what it meant.
So if anyone knows what this code means, I'd be grateful.
(personally I think it means, 'this machines buggered, go buy a new one')
cheers.