20 Most Recent Pioneer PDP-4280HD 42 in. Plasma Television Questions & Answers

It could be either the main or power board causing this...if your able and comfortable doing it remove the back and look for PSON on the connector legend and test the voltage on that pin, it should change when you push the power button, when I say change some sets use negative and some positive signal to tell the power board its time to come out of sleeping mode and go to work..if you see for example 6 volts with it off and it goes to 3 then the main is working or if you see 3 when its off and it goes up to 6 its also working, you want to see a change in that rail...if you see it change then the power board is bad and needs replacing

try a full factory reset then check to see if someone has turned on the mode or channel block, some tv,s you can block the dvd mode through the parental guide lock

This is an error indication of defects inside the TV and might need service.

hello,
try to get a schematic diagram to locate where the reset button is .
you can try electronicshelponline.com for schematics.
Good luck...

looks like, it is a thermal shutdown issue. Try the following: Keep a fan and direct the air towards the bottom vent holes. Switch on the TV. Keep it on continuously for more than 2 hours and see if the TV shuts off again. If not, then it confirms Thermal shutdown. Check if you have kep any papers, cloth etc very close to TV. Keep the TV ventilated. Let there be air circulation. Here is the service manual for your set, it includes the trouble shooting guide and what the codes mean. There is a lot in here and these are not easy to come by, so look at it and you can decide if you have an issue that it covers or not. these things are not easy to diagnose over the web, but we do try. I just hate spending peoples money on repairs if I am not 100% shure of the issue.
www.elwinelectronics.com/.../Field_Service_Guide_07_rev1.2.pdf
This sounds like a heat issue because it comes back on, if it were a bad board they usually don't come back on when they fail.

the remote gone faulty needs repair, change the batteries and try otherwise replacement/repair recommended

My research into your set and its TV Guide feature brought up two points that may be relevant:

1. It apparently takes about 24 hours for the guide to load up completely. This would make it difficult to get real-time info as to whether it was working or not.
2. 'TV Guide' may not work will all providers, and may not work as providers switch to digital. Have you spoken to your provider about possible compatibility?

I hope that helps
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Click here for a Pioneer PDP-4280HD manual.

Hi my name is Roety,
I can help you with your issue ,
Sorry to say you most likely have a bad panel (screen), You can try replacing the bottom buffers if they are available, but is probably the screen
　
　
　
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Thanks I’m happy to help further over the phone at https://www.6ya.com/expert/eric_ab7c09ec01841771

where is the video feed coming from? did you try a diffrent cable? can you change the channel at all?

Question edited for clarity. Great question Madeleine. The ones with Screen Saver and Audio are in Preview Mode. If you want to watch them, you have to subscribe. It is a tactic to get you hooked and get you to pay. Sometimes they will give you a couple of minutes of video and audio at the beginning of a programme. It isn't a television issue, it is your cable provider and a sales technique. ..