Question about Philips 42PF9630A 42 in. Plasma Television

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Unsupported device(s) message comes on randomly

Hi. Starting a week or two ago, my TV stops working and a message comes up that says "Unsupported device(s)". I'm not trying to hook anything up to it other than what I've had hooked up permanently for about two years now -- just my cable box to the HDMI port, and my Sony DVD player. Like I said, I've had this configuration for two years with no problem. The only other thing I can think of is that a couple of weeks ago I got a new Logitech Harmony 1000 remote, but I've ruled that out by putting it in another room so it can't "see" the components (it's IR, not RF), and it still happens sometimes. Any ideas?

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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SOURCE: how do I factory reset my Philips 23pf5320

did you have the power supply connected to any componet in your system while making connections , {not just on stand by} ? if so you have probably blown your tv's amplifer. never ever connect or disconnect audio or video connections without disconnecting ac power from the entire system !!! you may or may not get lucky doing this for a good while but sooner or later fate will track you down.

Posted on Feb 07, 2008

  • 114 Answers

SOURCE: Picture keeps alternating between HDMI1 "blank screen" and cable

try the lead in another slot and even another lead, if problem persists demand an engineer comes out.

Posted on Jul 31, 2009

  • 56 Answers

SOURCE: My TV has 3 HDMI ports. Originally I had HD cable

Welcome to Copyright Protection, otherwise known as HDCP. Its hell.
Interesting article in Popular Mechanics for you below. Have a read. http://www.popularmechanics.com/blogs/technology_news/4212508.html
This forum may help. http://www.avsforum.com/avs-vb/showthread.php?t=842732&page=2

Posted on Oct 12, 2009

  • 1 Answer

SOURCE: We recently got a Philips 42PFL3704D/F7 lcd tv.

I had this a issue with the Component input not working right as well. I had a repair tech come to my house to take a look on Philip's dime. Turns out it's the main circuit board. You cannot obtain this part from Philips. I've been in a fight with Philips to replace the TV. All this started in Aug 09.

Posted on Nov 10, 2009

  • 1 Answer

SOURCE: my tv powers on and stays on as long as nothing is

Dont know if this will help but it may be your main a/v board. I have a Sammy LCD and recently experienced similar issues. Tv wouldn't hold a picture or stay on. Once my tv would finally come on, any time I had something pluged in, in any input/with any input (composite, hdmi, component, or coax) and turned it on, the picture would go crazy and tv would shut off. The tv shutting off was due to the fact the tv was protecting itself from further damage. After lots of problem solving and talking with a tech, it was determined that my main a/v board was at fault. Sure enough as soon as I pulled out my main board and inspected it, it was obvious the board was bad. Not saying this is for sure your problem but it is very similar to what just happened to me. The boards are very easy to replace. Just a matter of unplugging some cables and unscrewing some screws. I found a replacement board on ebay and put it in myself. Doing the investigation on my own, opening it up and looking at the boards, and chatting with a with knowledgable techs and people on this site saved me A LOT of money. Again not saying this is your issue but you are having very similar symptoms that I have.

Posted on Feb 08, 2011

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