Question about Philips 42PF9630A 42 in. Plasma Television

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Black Screen after 5 mins. of use

I have a Phillips ambilight 42 plasma (42PF9630A/37) that is 2 years old. It turns to a black screen after about 4 or 5 mins of normal watching. The power light stays green then it tries to turn itself back on several times. The picture is perfect and there seems to be nothing wrong until the black screen.

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  • Anonymous Apr 05, 2008

    i have the same thing - 2 years or so old. did you find a fix or get it repaired?

  • sonny12 May 31, 2008

    i get this unexpected black out also, it happens unexpectedly and last for about 4 or 5 seconds and then the picture come back again. now after owing this model 42pf9630 for only 2.5 years the picture is so distorted that i had to call the repair service. thank goodness i had an extended warranty. bottom line i would not buy a Philips product again!!!

  • CCCTV Jun 11, 2008

    I have the same Philips Plasma TV.  Mine has the top half of the screen go black after about 30 minutes of watching.  It's intermittent, but once it starts it continues to lose half the screen on and off for the rest of my viewing.  The set is 2 years old.  I've contacted Philips and they sent me new software to download into the set.  It didn't help.  My next step is to contact Best Buy (I bought a 4 year extended coverage plan from them).  Best Buy was out to the house once before and ran specs on the TV and said it was fine.  Since the prpoblem is intermittent, the picture was fine when the tech was here so he didn't see the half black.  Since then, I've used a camera and taken a picture of the screen when it goes to half black so I have it as a still photo.  Does anyone know what the cause is and if there is a way to fix it.


  • caspita Jun 20, 2008

    Mine has similar issues for a while but not persistant. Half screen black once in a while, 3-4 second of blank screen also once in a while. I was blaming the HD cable box but then today it sudently became full blank, red ligth blinking and that's, it is not working any more. Even after 6 hours of "cool down" :-(... any toughts?



    Thanks,

    Carlos.

    PS: I have no extended warranty :( and it is a 2 year old.

  • jbrown8380 Jun 26, 2008

    The bottom half of the screen is going blank for a few seconds at a time. I still have sound. It seems to get worse the longer the set is on. Seems attributed to heat.

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Mine goes black with sound, after about 20mins, then off and on again. mounted fan in back cover from computer and no more problem!!!!!!!!!!!!!!!

Posted on Oct 29, 2009

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I just got a call today (referring to my April 5th post) and the exact symptom and fix from "jdbouncer" was conveyed to me by my repair man. 3 red blinking lights, no sound or picture after about 5 mins are the result of a bad SSB board. I purchased my tv from Costco and they are extending the repair period to 3 years total (the 1st year would be covered by philips). I had to get denied service repair coverage from Philips with a case number and then find a costco certified repair shop and open a case with Costco (via proof of purchase / reciept). Costco customer service was great: ordered the parts and my tv should be fixed within a week. Thanks jdbouncer. Costco does not seem to communicate the longer service warranty but this is good to know. From what i have heard, they had too many tv's coming back after 1-2 years and they created a program to deal with them as a fix rather than a return.

Thanks Costco too!

Posted on Apr 23, 2008

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Question when u loose picture do u loose sound also ? If so there is an 27Mhz xtal on the (SSB) small signal board that needs to be changed when it heats up it cycles out of phase. when it cools down it will work again till it heats up.

Posted on Apr 08, 2008

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It sounds like the entire screen goes blank with your problem. My problem is the lower half of the screen goes blank. Do you think the SSB is also the problem? What are your thoughts about the "Video Board" or the X Board?

Do you know where to purchase parts?

Posted on May 28, 2008

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SOURCE: I HAVE A PHILLIPS 42'' PLASMA 42PF9630A-37

The only thing I can suggest outside of taking the television to get repaired is a hail-mary firmware update. To be honest, the firmware update process is fairly complicated and lengthy. You can download the firmware and find instructions for it here.

http://www.p4c.philips.com/cgi-bin/cpindex.pl?ctn=42PF9630A/37&scy=US&slg=AEN

Look on the right hand side for firmware information.

This TV is likely outside of its 1 year manufacturer's warranty so you would have to pay any and all repairs. Before deciding to do a repair you might try calling Philips. For a while they were offering a service to customers like yourself with out of warranty units. They would offer to sell you a more up to date model at a discount. I'm not sure they still do this but its worth a shot.

Hope that helps!

Posted on Jul 19, 2011

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