The power has completely gone off and it is still plugged in. I cant
see any fuse on the back but does anyone know if there is one on the
power supply inside please?

I found a page where they SAY they have a service manual to down load
at http://www.eserviceinfo.com/download..._SV-4000W.html
but where it says NOW DOWNLOADING, nothing seems to download.

I can search on their Samsung page at http://www.eserviceinfo.com/equipmen...Samsung_4.html
but there doesnt seem to be an appropriate one there? Does anyone here
know how to navigate their site?