65" Mitsubishi TV

The inputs may have to be re-soldered this is a common issue with projection screens

Replace swollen capacitors on the power board.

I should be channel 3 or 4. This assumes that this coax cable is coming out as a TV R.F. connection of a Dish Network Box (Satellite Receiver) intended for direct connection to an old fashioned NTSC (channels 2-13, 14-83, possibly even has cable channels depending on how old?) TV.

If this coax is the output of a coax going directly to the Satellite Dish or through what might might look to you like some kind of fancy splitter (called a Multi-Switch) the you WOULD NOT want to hook that to your old NTSC tv. The frequency is too high ... etc. etc... you would need Dish Box (as you call it) a.k.a. a Satellite receiver - with a good and active satellite card from your provider.

I unhooked the new tv and hooked up the old one to see what channel it was on and then rehooked up the new tv and put it on the same channel as the old one.This worked but I also had to put the cable into the hook up on the back marked cable instead of the one marked HDTV.

Please help

In order for you to receive HD broadcasting you must have a HD-TV, otherwise you wont get the picture in HD. Also I should point out that you need to make sure that the signal itself is being broadcast in HD.

when i hook either my dish hd receiver up to the 1080i component video inputs, everything works fine if i set either device to 480p, but i get nothing i set them to 1080i.

Look around online and find that this is a huge problem with Mitsubishi rear projection tv's. It is the board that needs replacing at $1100. My tv is 3 years old and already a big paperweight. Blinking green light of death.

sounds like one of the drives gone down.this model has three diff tubes driving the display,would be impossible to even guess fault without seeing