I have a Mitsubishi HD 1080 series 65" set. I just got digital cable and I can get HD channels but it only shows in 480i. When I go to menu on the tv to advance settings if gives the option of 480i an

It sounds that a software update is necessary. Contact the service centre for Panasonic, to get the latest software to this model Plasma tv.

Since this is an older first generation (1999) HD TV it may not be compatible with newer HDTV receivers because the standards back then were different - Make sure the HD cable box is plugged into the HD component inputs on the back of the TV (not the DVD inputs) and that the menu setting on the TV is set to DTV (not RGB) video. This TV will only accept 480i and 480p signals on the DVD input. Also the HDTV input will only accept 480i,480p and 1080i (it will not work with a 720p signal,make sure your cable box is not set to that mode)

Its main digital board has to be replaced. It is a skilled work. If you wish to get more details about this work, check the site linked below and pull up older posts there.
http://electronicshelponline.blogspot.com/

Assuming the cables are good etc. this set has 3 hidden menus, one is the OPTION menu which will reset almost all settings back to default.


I have seen it cure no sound, no video, all sorts of odd things--it will not affect convergence which is stored in another area but a missing or non working input it may cure.

I have the 4 number code for doing this but you have to have a working original Mitsubishi remote--universal will not work.

Let me know if you want to try it and I will provide the code and general instructions for doing it.

U don't get to chose modes.480,720 and 1080 it chose by the tv show itself.Want more 1080 must have HD package from cable or satalite compannies.

Tries CBS or NBC channels have HD if displayed 1080i than ur box is working.The shows must say HD or Display 1080i to work HD programming.

I would look at the source for the Hd signal as being the problem--if you are using some kind of cable or sat box it will deliver the signal to the DTV input on the back of the set--this is the HD input for this set.

It is possible to have a problem like you describe be one in the set--but very unlikely----have you looked on that green signal board for any signs of Glycol?

Anything that will produce a 1080 signal to the DTV input should tell you if the problem is the set or the source of the HD signal that is causing the problem.


If you have questions or need advice let me know--I am here to help people.

if this information has helped you rate this solution as i do this here for free.

SD TECH

Greetings,

In the input assignment menu make sure that the DTV (the only 1080 input on this tv) is set to Y/Pb/Pr and see if that fixes your issue with at least the HD-DVR.

BTW- the HDMI information "1080i HD can only be selected if TV has HDMI inputs". is not correct.

COMP 1 and 2 are for 480i/p sources. Hook it to the 1080i capable on the back. Also make sure the HD DVR is outputting 1080i not 720p. The Mits can not disply 720p and will show a scrambled screen if you try to.

yes it should, more info at ctechnicians.com