Question about Panasonic TH-50PHD5UY 50 in. HDTV-Ready Plasma Television

9 Answers

Picture blanking out, coming back, repeatedly

I own a Panasonic TH-50PHD5UY, purchased in, I believe, April 2003. I had one problem with the TV back in '06 I think with the top half (or bottom half, I can't remember) of the screen going black. Under extended warranty, so fixed for free.

Tonight, all of a sudden, the screen goes grey (not black) fore a couple of seconds, comes back for maybe a minute, goes grey again for a couple of seconds, etc., etc. This happens whether I have an HD channel on or a "regular TV" channel on. If it matters, I have DirecTv. None of the other tvs in the house have this problem, but none of the other tvs in the house are hooked up to an HD box either.

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  • lmb Jan 06, 2009

    Hmmm, not quite sure this hits the mark. This is a CONTINUOUS PROBLEM -- i.e., the picture doesn't stop graying out, coming back, graying out, etc. Not to mention I've never touched the resolution, so it's not that.

    My original post:
    I own a Panasonic TH-50PHD5UY, purchased in, I believe, April 2003. I had one problem with the TV back in '06 I think with the top half (or bottom half, I can't remember) of the screen going black. Under extended warranty, so fixed for free.

    Tonight, all of a sudden, the screen goes grey (not black) fore a couple of seconds, comes back for maybe a minute, goes grey again for a couple of seconds, etc., etc. This happens whether I have an HD channel on or a "regular TV" channel on. If it matters, I have DirecTv. None of the other tvs in the house have this problem, but none of the other tvs in the house are hooked up to an HD box either.

  • lmb Jan 06, 2009

    been there, done that.

  • lmb Jan 06, 2009

    that's your serious expert advice? For $10? I came here hoping to hear of other Panasonic TH-50PHDU5UY owners who may have had the same problems, not that I need to get a TV repairman to fix it (which, ultimately, is the case, since most of us won't touch these TVs ourselves). That type of advice is free.

  • lmb Jan 06, 2009

    thanks

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Top of the day to you!

Well, I see that you've gotten a lot of advice, but what the heck! I'll throw in my 2 cents worth.

If I understand the problem correctly, it doesn't sound like you have confirmed that the problem is in the TV or not. You should be able to do this by one of the following methods.

1-Simply take the HD box out of the loop. If the problem goes away, it's the HD box.
2-Hook up a different TV to the HD box. If the problem is still there, it's the HD box. If it doesn't reoccur, the problem is in the TV.

Where ever the problem lies, if you have little experience in this type of repair, I will say that it's not for the faint of heart. And, unfortunately, there appears to be no "quick fix" available for this problem.

I'm sorry to say that once you have confirmed which device is causing the problem, it would probably be best to get an expensive person involved.

Even though this is not the answer that I'd suspect you were looking for, I hope this info is of some value.

Best of luck and have a super day!
Ron







Posted on Jan 06, 2009

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Lmb,

Can I try .. but can you tell me what kind of blinking sequences (if any) you are getting on the front led.

crayz

Posted on Jan 06, 2009

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Try disconnecting the hd cable box and see if you can hook up the cable that is in the other tv's in the house to the one that is having a problem. If the problem persists, then it is most likely a problem with the main board of the tv. It may be shorting out causing it to go gray and coming back on after the short ends. This will have to be checked by a professional to be repaired. I know you did not pay for this type of answer, but if you open it your self, you could damage other components in the tv and possibly shock your self with high voltages.

Posted on Jan 06, 2009

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Unplug TV from AC outlet for few minutes and replug it back and turn power  ON.Try this trick. 

Posted on Jan 06, 2009

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One question for clarification:

Does the picture remain just in grays or does the entire screen go gray as a solid color?

Thanks,
Dan

Posted on Jan 06, 2009

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Hi and welcome to FixYa,

Initially, try hooking a DVD player and watching a movie. If the 'graying" problem persist, then it would be the Panasonic TH-50PHD5UY, if problem fails to appear, then possibly the HD box (though most unlikely).

Should it be verified that the Panasonic is faulty, it would appear as a hardware issueand therefore no reset, settings or calibration would be corrective. This of course would require opening the unit, perform voltage measurements, determine faulty component and subsequent part(s) replacement. Further, a fair familiarity of electronic components/circuitry and safety procedures, use of a DVM and a soldering iron would be required. It would be to your added advantage access to a service manual or at the very least a schematic diagram with voltage readings.Should you be uncomfortable performing a DIY (do-it-yourself), perhaps your best bet would then be to seek the services of a qualified professional.

Good luck and Thank you for using FixYa.

Posted on Jan 06, 2009

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Call Around And Find Someone Who Will Give You A Quote Diagnosis Then Fix It Yourself.

Posted on Jan 06, 2009

  • Michael Fisher
    Michael Fisher Jan 06, 2009

    I Apologize If You Are Unsatisfied With Your Forum Answers Let Me Ask You A Few Question's. Have You Tried Reseting The Telivision? A Reset Can Be Done By Unplugging The Unit Then Holding The On Off For 30 Seconds. Check And See If The Problem Persists As This Will Determine That Even With The Factory Presets The Device Is Not Working Properly. Please Try That And Post Your Results.

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Reset your tv etttings to factorty defaults.in menu.

Posted on Jan 06, 2009

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The signal to the monitor has to be correct in both resolution and refresh
rate for a picture to be displayed. Once you have selected a resolution
that it out of range, there is a way of recovering the situation. On
selecting the invalid resolution, the video should revert to the last
working resolution and refresh after 15 seconds, unless you press the enter
key.

Posted on Jan 06, 2009

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