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

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Blue spot like many people, what started as a small blue spot has turned into a larger one and new blue areas are appearing daily. We just replaced the lamp and this did not fix the problem.

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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

Posted on Apr 01, 2008

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If you've done an I2c reset then your problem is most likely the light engine. Actually the lcd panel inside the engine but the procedure is still the same - replacement of the LE..
Bill

Posted on Mar 31, 2008

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Posted on Jan 02, 2017

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1 Answer

Whit spots appearing daily.. lamp was replaced 1 amd a half years ago.


You need to have the Optical unit Block also known as the Light Engine Replaced.
PTS rebuilts them 1-800-844-7871
Encompass Parts Distibution list Part# 938PO75040 Price before core refund is $1,490.00
core fee refund is only $300.00

Jul 04, 2011 | Mitsubishi WD-57734 57" HDTV

1 Answer

There is too much blue on the screen & not enough green coloring


Have a very close look at the blue and see if it's perfectly uniform across the whole screen.
If it is then altering the hue or colour temperature settings in the menu may help.
If it's not then either there are heaps of pixel failures (appearing as small rectangular spots) or degradation of the polarisers (green may be affected more than the others).
If you show the menu, do the white areas appear bluish.
If the lamp is very old then colour changes start to happen.

Jun 23, 2011 | Canon Office Equipment & Supplies

5 Answers

Bright white spots on mitsubishi wd-73833 I just replaced the lamp and now these bright white spots have started to appear!


This unit uses a DLP (digital light processor) chip and if this starts to fail then you will get spots appearing on the screen. The DLP chip will need to be replaced.

Mar 24, 2011 | Mitsubishi WD-73833 73" HDTV

2 Answers

I just recently changed my lamp in my hitachi 50 VF 820 and the screen has a large blue spot on it. I have done it before once or twice and all went well. Did I possibly put the bulb in incorrectly or is...


No. If the set turns on and you have a picture, the lamp is installed properly. Most of the time the optical block is the issue. The lamp shines directly into it. If the picture was good before the lamp was replaced, it is possible that that replacing the lamp might have dislodged some micro dust build up internal to the optical block and it landed in a concentrated area causing the red and green lcd panels not to pass light through as bright as the blue giving you a blue spot. Unfortunately the optical blocks are not designed to be taken apart to clean. Replacing the optical blocks are expensive. Most costing in the area of $700.00 to $1200.00 for the part. It also is a major tear down to get to the optical block to replace it. Once upon a time Hitachi had a couple of recalls on their optical blocks for various models. I do not know however if this qualified.
I hope this helps,
Skyassoc

Jan 06, 2011 | Hitachi 50VF820 Projection TV

1 Answer

Power keeps flashing red. We have cleaned fans and this has helped in the past but I can hear the small fan come on and the larger one by the lamp is not. How can I repair this?


The"LAMP" LED light indication flashes also and the projection lamp been inside the tv like 1/2 or 2 years,tv been on and used like 4 or 5 hours daily?The tv projection lamp life are ending.Should get the tv projection lamp replaced.

Dec 17, 2010 | Sony KDF-50E2000 50" HDTV

1 Answer

Have a blue spot on the screen. started just


Hi,that's an issue with the light engine.Basically there's 3 chips blue,green and red they create the image on the tv ,when they start to fail you'll get those spots all over, mostly in the corners.God bless you!

Oct 05, 2009 | Mitsubishi WD52527 52" Projection HDTV

1 Answer

Blue spots


its the lamp problem that needs replacent.if replacing the lamp does not solve the problem.its also the light engine problem on beside which the lamp is seated.but if lught engine is faulty it has to be replaced the engine cannot be repaired.so instead of replacing the light engine go for new tv.as liught engine replacement means the tv can face any other major problem soonso first replace the lamp and check out.

Apr 02, 2009 | Sony Grand WEGA KDF-60WF655 60" Rear...

1 Answer

I have a sony kf-42sx3oou, i have just had the lamp replaced, since replacing it a few blue spots appeared in the top right corner but today a yellow line has appeared on bottom left hand corner, could you...


This problem was probably there before, but you only noticed with the new "Brighter" bulb.

This TV will require replacement of the LCD Prism unit.

This Prism blocks and allows colors so that the 3 LCD images may be mixed to produce the final image you see on the screen. When this becomes damaged or defective, it leaks colors (light). This Color Leakage apears as spots on the screens.

Where you see the spots is where the specific spot on the prism that is leaking light, the specific color that is leaking also.

This parts cost alone is normally $500 to $1000 dollars but is usually replaced under warranty. If out of warranty, I suggest living with it or selling it if out of warranty. Turn down the Brightness and it will not be as noticeable. I am sure you only see this with bright images.....like white backgrounds and such

Good luck.....

Mar 04, 2009 | Sony Grand WEGA KF-42SX300 42" LCD TV

1 Answer

InFocus LP280 problem


Hi there

I'm afraid this might be a faulty Mainboard.

Your lamp will never make the Projector show funny stuff on the image.

Must warn you that a new Mainbaord is quite expensive

Mar 11, 2008 | InFocus Lamp Projector Lamp for LP240 [...

1 Answer

Sony WEGA 42" LCD TV


Uh Oh! blue screen of death. Your light engine has warped a little from overheating and is distorting the picture.

My suggestion to you is to get on the phone with Sony and start complaining, then keep complaining until they agree to pay for it. Even if it is out of warranty.
You may have to get the problem diagnosed by a pro before they agree to pay for it though.
Hope ya fix it!

Jan 07, 2008 | Televison & Video

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