I have a Mitsubishi 2010 WD-60C9. All three HDMI inputs,cable box,blue ray and DVD, no signal through.
3D ready TV.Screen blank but menu shows.
You will start by checking if the connections are correct. You can use your user manual to confirm the connection of the cables. Otherwise, you can test the cables on another machine to see if they work. Contact the customer care for more inquiries.