Can i update a pioneer receiver Pro R04U for a pioneer elite Pro R04U if so what will fit this tv;

How many times this standby/power light blinks at one time switch ON?Count it carefully.These blinks are fault indication, and known as blinking codes.From the number of blinks occur at one time switch ON; you can get an idea about the faulty circuit stage inside the TV.This will make repair easy. For more information, check the link http://electronicshelponline.blogspot.com/ Pull up older posts.

disconect video cable from the box and if you see color video bars on the screen the problems is the box.if you dont see anything you problem is in the display

My initial response is "An S-Video Cable"... but I suspect this isn't the information you are seeking.
You don't need to connect your receiver to the TV's video inputs UNLESS you want the receiver to switch between different video devices.
PS - more information on what "my receiver" is would help too, also tell us what you're trying to accomplish as the end result.
tell us about all the equipment you have, and how you would ultimately like to be able to control everything, and what inputs and outputs are on each device.

Any luck with this? I really need this information as well.

Check what in the HD 612 receiver what year it was made and the software,frameware version it in the programing.Do the same with the tv might not have compatible version of softwares.

power supply call pioneer

How to Reset the Pioneer Plasma Safety Switch Techwalla com

try testing dvd player direct to tv dont use uvsal remote go to tv turn it on and change inpput to dvd see it works

You need the pioneer media cables hooked up to the media receiver to the plasma unit itself. each end has 2 different plugs. one has 2 thumb screws and the other is a squeezable end that clicks into place. They MUST be on before you plug in any power what so ever!!!! And yes, other information is being passed through.

C-Dog

You could get the old one and have them match it up. If not try www.pioneerservice.com