Television and Home Theater

My Mits RP WS-48613 will not power on and there is no green light on the front panel. The unit has not been used for about a year so I don't know when or why the condition developed. I'm a former e-tech so I figure I can work though some troubleshooting and perhaps the repair with some help.

        My WD-52725 has a problem that I've yet to read about. Hopefully
someone can give me some insight as to what the issue is and how to go
about troubleshooting it.

What is MKV and how to convert MKV to MP4, AVI, WMV, MOV, MPG, 3GP, iPod, Zune, PSP etc?

Lately, a new format MKV emerged. More and more people start to use MKV. However, lots of people don’t know what the MKV is. As seldom players can read it, people may face the problem that they can’t use the MKV video. This thread here is to remedy that. I will show you what the MKV is on earth, and how to convert MKV to other popular video format so that your video can be widely used.