Question about Hitachi 50V710 50" Rear Projection HDTV-Ready Television

2 Answers

Yellow spot in center of screen

Yellow spot just started in the center of my screen. I have ordered a new lamp to replace the one I have but not sure that is all the problem. From looking here see it could be the light engine or the ?color block. Any information on this issue?

Posted by on

2 Answers

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer
Re: yellow spot in center of screen

I have recently developed the same yellow spot problem on my Sony KDF-E50A10  50" LCD television...a large yellow circular hue that takes up the bottom center of the picture and is especially noticeable against a white background.  It has been diagnosed as the optical block (light engine) and without an extended warranty Sony refuses to assist with the repair cost.  Repair was estimated at $1,100 plus tax and travel fees to my home.  So you see, it is not only a Hitachi problem.  You would think they could build something that would last more than two years considering the initial cost of over two grand for the TV !

Posted on Jul 16, 2008

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that gotĀ 5 achievements.


    An expert that hasĀ over 500 points.


    An expert who has answered 200 questions.

  • Expert
  • 301 Answers
Re: yellow spot in center of screen

Sounds like the 3 of you are surely having optical engine failures. sometimes dirt or other contamination can make its way inside the light engine and cause picture distortion. if you have a warranty definitely get it taken care of asap otherwise get and quote and expect the worst.

Posted on Feb 22, 2008

Add Your Answer

0 characters

Uploading: 0%


Complete. Click "Add" to insert your video. Add


3 Points

Related Questions:

1 Answer


If my research is correct you recently replaced the lamp and then the "shadow spot center of screen" appeared.

Three possible reasons I can think of for this:

Something wrong with new lamp or on face of lamp--never touch the face of a lamp as oil from you hand can leave a residue and damage the lamp or cause a image issue.

Something inside on the optical lens or even the mirror causing this--not likely but possible.

A defect in the optical light engine in the set---usually if heat which comes from the lamp damages the engine it will be a color and not black---engine has a series of lens and baffles inside that heat can damage--causes minute separation inside of the lens etc.

If the old lamp works at all try putting it back to see if same issue--did you replace just the "bulb" in the housing or the whole cartridge?

If remove new lamp look at it and where it faces--usually a clear lens faces it and if some dirt on that..........

Jun 03, 2012 | Projection Televisions

1 Answer

Yellow & purple spots permantly appear on the screen

Unfortuntely its time to replace the optics engine, Engines make up about 80 percent of the television, replaceing the optics engine will be like purchasing a new set. There is no way to address this problem but to change the optics engine, A good place to purchase one new or rebuilt is

Jun 05, 2010 | Sony Grand WEGA KDF-42WE655 42" Rear...

1 Answer

Hitatchi 52" rear projection TV has blue spot in middle of screen

Hello :
I suggest u retrace you the steps u took to replace your lamp make sure no foriegn objects got on the prism where the light shines throung the optics engine, if you remove the lamp compartment througly. If you had a perfect picture prior to replacing the lamp, then retracing your steps you might find something that does not belone. One final note: Did you purchase the right lamp 120watts anything higher than this wattage could damage your optics engine. I suggest never vacuuming the compartment because particals fly around from the suction and could get on the glass of the color wheel asembly.

Sep 25, 2009 | Zenith D52WLCD 52" Rear Projection...

1 Answer

Hitachi 55vs69a yellow blob in center

you most likely have a bad light engine.

Aug 20, 2009 | Projection Televisions

1 Answer

Sony 60" LCD projection TV has yellow screen discoloration

It sounds like you have a bad Blue Polarizer in the light path. I'm sorry but that is something you will have to contact a service center for. It's not something you'll be able to do yourself, I'm sorry, but that's the best advice I can give you.

Feb 17, 2009 | Sony Grand WEGA KF50WE610 50" Rear...

1 Answer

Have yellow spot in center of screeen

it is actually a light engine problem, i have replaced probabily 50 of thease for that exact problem, it is a prity hard part to change yourself, and it costs about 400 dollars

Jan 09, 2009 | Hitachi 42V710 42" Rear Projection HDTV

2 Answers

Yellow Spot dead center on screen

Any color spot is never the lamp with this type of set.
the yellow spot is caused by the optic block (Engine). Very expensive to buy.
Little over $1000 plus labour with a qualified technician.
Sometimes technician may try to clean or repair inside but most likely won't succed.
good luck.

Sep 20, 2008 | Sony Grand WEGA KDF-50WE655 50" Rear...

1 Answer

Yellowish spot on the lower left hand corner of tv screen

Good Day, There is a device that can be used to correct your concerns. Symptoms can be correct by EE PROM CORRECTION TOOL:
LSUQ0100. Instructions included. Try calling 1-800-458-6053. It's under $100.00 and takes about 1 hour from start to finish. Good Luck, big IRISH.

Jul 07, 2008 | Panasonic PT-52LCX65 44" HDTV

2 Answers

Yellow spots are appearing in the upper right quadrant of the screen. After the set has been on for a couple of hours a second spot appears in nearly the dead center of the screen. This issue coincides...

Try the new lamp as indicated by the blink codes. That may resolve the problem. If not, the problem is in the "light engine" portion of the set which should be covered under warranty.
Keep us posted.

May 29, 2008 | Panasonic PT-52LCX65 44" HDTV

1 Answer

Zenith color problem

We have seen this several times and the yellow spot is due to a problem in the light engine. Major repair and very expensive. The amber lite is simply the lamp replace indicator. After the lamp is replaced a programmer remote is required to get into the service menu an reset the timer.

Jan 20, 2008 | Zenith E44W46LCD 44" Rear Projection...

Not finding what you are looking for?
Hitachi 50V710 50" Rear Projection HDTV-Ready Television Logo

458 people viewed this question

Ask a Question

Usually answered in minutes!

Top Hitachi Projection Televisions Experts

Jaime Hernandez

Level 3 Expert

2267 Answers

matt martin
matt martin

Level 3 Expert

1187 Answers

Donald DCruz
Donald DCruz

Level 3 Expert

17129 Answers

Are you a Hitachi Projection Television Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides