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

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50v500 I have the red blob on my screen...What is it?

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  • Anonymous Nov 11, 2007

    Same red blob, large amount in the shape of an oval, colors are wrong and green. Do I need a new lamp or is the green or red gun off?



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We have the Hitachi LCD rear projection 60V500A. My husband noticed the infamous "red cloud" about a month ago. After lots of research on the internet, we discoverd that it's a light engine problem. This appears to be pretty common with this TV after you've had it 2-3 years. The red cloud will get worse to the point you will not be able to watch the TV. After lots of negative blogs about this problem, I fully expected a fight with Hitachi about it but I have been very pleased with their response. I called the customer relations # 800-654-7013 (regular customer service will not give this # to you) and they gave me the name and number of two Hitachi certified dealers in our area. We had the tech come out yesterday and after taking a quick, one minute look at the set, he agreed that it was a light engine defect. I called the customer relations department and they said that once they were able to confirm this with the tech we used, they would contact us. Within a couple of hours, they called us and said that they were sending a brand new light engine directly to the repair shop and that they would cover the part. Should have it in 2 days.

Now here's the kicker. Our set is 3+ years old so they agreed to cover the part but not the install. Our repair guy said the install would be $385. I felt like I could have pressed the issue with Hitachi to pay the labor but I didn't. For us, to spend $385 on a $3600 TV (price when we bought it 3 years ago) is worth it. It's been a great TV and after 3 years, we've never even had to replace the bulb. The part runs around $1500 and again, Hitachi is picking up that expense. Very easy to settle.

I will tell you that before you officially have the problem looked at by someone they recommend, they will act like they've never heard of this problem. We found that once we had the tech out and called Hitachi customer relations (not customer service) and they were able to verify this through the technician, all of the sudden they were aware of the problem and we should have the part in 2 days. Our tech said that he could do the install at our home and not have to take the TV to the shop. Another great plus! I hope you have the same luck as we did:)

Posted on Nov 14, 2007

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The problem lies in a filter element you cannot access. It stops up and there is not enough cooling in the polerlizing lenses infront of the lcd screens. Look at

see it for your self. To access the filter you pull the LE out and then you can see it.

Posted on Apr 03, 2008


There is a procedure that can determine if your TV has a defective drive module or a defective light engine causing the red oval and the lack of green. This procedure is lengthy and should be performed by a qualified technician. However if you want to give it a try, go ask if you can download the information.

Posted on Nov 12, 2007

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Related Questions:

1 Answer

Hitachi 50V500 has a blue blob in the center of the screen that is getting bigger.

That is a burnt LCD panel caused by excessive heat from the lamp, maybe due to blocked/restricted airways.
It is not likely to get any better and a new LCD unit will be required to repair it along with new filters and maybe a fan.

Feb 02, 2011 | Hitachi 50V500 50 in. HD-Ready LCD...

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...

1 Answer

Hitachi rear projection LCD with yellow blobs on screen

I have the same tv and the same problem, but my yellow is a cloud around the outside of the screen. My tv was recently moved, and a repair shop told me that sometimes in a move these tvs light engine takes a shock and causes a yellow "band" on the screen. I am hearing that these light engines are not cheap either. Hope this helps you.

Dec 01, 2009 | Hitachi 50V500 50 in. HD-Ready LCD...

1 Answer

I was wondering if anyone knows where i could find a sevice, repair manual, or an exploded view for a hiatachi 50v500 lcd projection. I have a red blob, and thank to other posts on this site, probably a... small fee for the manual

Great site for dlps with allot of information including your manual

Aug 21, 2009 | Hitachi Televison & Video

1 Answer

Blue blob on screen of 50V500 tv

it's not the lamp (obviously, as you found out). the light filter on the blue lcd has a burn mark on it and needs replacing. many companies don't sell parts for the optical engine (where the filter is), so you may have to purchase the whole engine, which tends to be pricey.

Aug 12, 2009 | Hitachi 50V500 50 in. HD-Ready LCD...

1 Answer

Hitachi lcd rear projection tv

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...

1 Answer


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...

1 Answer

Red blob

call hitachi services and tell them about it cuz its not the bulb its the engine they should give you some kind of discount

Jan 28, 2008 | Hitachi 50V500 50 in. HD-Ready LCD...

3 Answers

Hitachi 50v500

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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