Question about Hitachi 50V500 50 in. HD-Ready LCD Television

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Hitachi 50v500 50"

After watching my hitachi 50v500 50" a weird blue blob runs from the top and slowly runs towards the bottom. I think that it might be some sort of condensation inside the tv because it like dries up after a while but then when it gets hot again it starts all over again. Also its near the window so im not sure if thats the problem. thanks

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  • jaybettencou Jan 16, 2009

    thank you very much i have been trying to figure this problem out and no body had a single clue what was needed to fix this problem



    thanks again

  • Butch Gomez
    Butch Gomez Jan 16, 2009

    My TV started a little blue tinted see through cloud in the upper right corner but now its all over the whole screen mostly around the sides its like it ran down the screen the lamp went out and I have replaced it but the blue is still there I have even tried to adjust the color in the menu but it does not help

  • nour138 Jan 17, 2009

    hitachi 50v500 50"

  • dejrfan Feb 03, 2009

    I have the same problem. I have 2 big blue blobs across the television. I've had 2 different repair companies tell me that the engine light has gone bad and will cost me $800.00 - $1,000.00 to have it repaired.

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I had a growing, shifting blue patch on the screen of my 50" Hitachi hdtv. It signifies a dying light engine. Hitachi will provide the part free of charge if you call their customer service number. It's a good thing because the part (essentially the core of the TV) costs from $600 refurbished to $1200 new. I had to pay for the labor, which in my case was about $300. Not good, but Hitachi acknowledges that the part was poorly designed and overheats, so they will do that much. The new light engines are re-engineered, I was told. Move asap, because if your set is more than two years old, they are crankier about providing the part.

Posted on Feb 05, 2009

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The unit requires a replacment optic block to correct the problem your experiancing
if you are the original owner you may contact hitachi customer relations and they may opt to supply a remanufactured optic block and you would be responsible for the labor but still cheap enough and you get a good working set again

Posted on Jan 16, 2009

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1 Answer

I have a ultravision 50v500 and it has a blue blob in the middle of screen. I have just changed the bulb with hardly any change in the blob. I also had the light engine changed approx 2 years ago.


That is caused by excess heat possibly due to poor air circulation/blocked filters.
It is damage to the LCD panels. It won't get any better, just worse.
So look for another Blue LCD panel and someone who is experienced to fit it.

Jan 07, 2011 | Hitachi 50V500 50 in. HD-Ready LCD...

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I have a 60' Pioneer Monitor that once the screen runs for a houror two starts to slowly creata reb blob int he middle of the screen and slowly gets worse what is this and how cna i fix it?!


You have a burnt polarizer within the light engine. This is a problem you will not be able to handle yourself. I would call a professional and get an estimate first before I put $500-600 into that set.

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Hi, thats bad news, you need a light engine, very expensive repair,sorry for the bad news,video-tek

Jan 11, 2009 | Hitachi 50V500 50 in. HD-Ready LCD...

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If you have the "red" blob in the center of the screen or you have "blue" blobs that show up in random areas of the picture then the only repair is to have a technician replace the optical light engine.

Dec 19, 2008 | Hitachi 50V500 50 in. HD-Ready LCD...

5 Answers

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You have a defective light engine and you do not have to be under warranty for Hitachi to replace this part. We just went through this and here's what you need to do. Call Hitachi's customer relations department at 800-654-7013 and tell them that you have a defective light engine. They will act like they've never heard of this problem but they have. They will give you the names of some certified dealers in your area to call. Once a tech comes out and confirms that it's the light engine, call Hitachi back and they will send a brand new light engine to the dealer and Hitachi will cover the cost of the part (cost $1500).

Here is the deal, if you're under warranty, Hitachi will cover the part and the install. If you're not under warranty, all you pay is the install. Our install cost $400. Others on this site have paid $200. Do not let anyone tell you that you have to pay for the light engine part...you do not. Hitachi has not recalled this part but they are replacing it for free. Also, deal only with Hitachi customer realations number that I listed. Good Luck

Apr 11, 2008 | Hitachi 50V500 50 in. HD-Ready LCD...

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You have a defective light engine and you do not have to be under warranty for Hitachi to replace this part. We just went through this and here's what you need to do. Call Hitachi's customer relations department at 800-654-7013 and tell them that you have a defective light engine. They will act like they've never heard of this problem but they have. They will give you the names of some certified dealers in your area to call. Once a tech comes out and confirms that it's the light engine, call Hitachi back and they will send a brand new light engine to the dealer and Hitachi will cover the cost of the part (cost $1500).

Here is the deal, if you're under warranty, Hitachi will cover the part and the install. If you're not under warranty, all you pay is the install. Our install cost $400. Others on this site have paid $200. Do not let anyone tell you that you have to pay for the light engine part...you do not. Hitachi has not recalled this part but they are replacing it for free. Also, deal only with Hitachi customer realations number that I listed. Good Luck!

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To all that are experiencing the blue blob. This is result of poor maintenance. Projectors must be kept clean on all air intakes. This is to help you all understand the failure cause. Usally not worth repairing.

Aug 21, 2007 | Hitachi 50V500 50 in. HD-Ready LCD...

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