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LCD rear projection

Having a problem with my LCD rear projection the screen started out with a blue blob now has changed to a oval circle inthe middle of the screen that has turned yellow.

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Posted on Nov 04, 2008

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Blue haze/blob near the center and lower right corner.


Failing optical block. check this website
http://sites.google.com/site/sonylcdrptvproblems/sonykdf-55wf655opticalblockreplacement

Mar 08, 2010 | Sony KDF-E50A10 TV

1 Answer

50 INCH rear projection LCD Gettign blue spots on screen forming a circle?


A discolored Blob or blotchy pattern usually in the center of the screen. the problem is becoming all too common with Hitachi projection sets. What happens is that one of the lenses in the optical block (or light engine) starts to burn or discolor due to overheating because of a blocked air filter causing poor air (cooling) circulation. Nothing can be done when the damage is too far-gone except to replace the light engine-at a cost that makes it not worth repair. if the damage is minimal than to reduce further damage, the air filter should be replaced. The Light engine needs to be removed in order to replace the air filter

Have it checked by a tech it's worth the service call to know for sure

Oct 03, 2009 | Hitachi Projection Televisions

1 Answer

Hitachi 55vs69a yellow blob in center


you most likely have a bad light engine.

Aug 20, 2009 | Projection Televisions

1 Answer

Yellow hue circle in middle of screen. after leaving tv on all night


spherical or oval shaped light starting in the center of your picture is an indication of an led backlit tv.. probably a hitachi. solution, replace light engine..ps no garuntees not with led backlit sets.. was bad idea to begin with. when the leds start going they start at the center and branch out.

Apr 13, 2009 | Hitachi 50V715 50" Rear Projection...

1 Answer

I have a hitachi 50 in rear projection tv and i am getting a yellow circle through out the middle of the screen what do you think that is and how do i fix it?


I looked back and see your talking about a crt type. My bad. A small yellow spot is most likely dirt or a bug in the blue optics. Tale the front off the set and with the tv on look down into the lenses. If you see a blob of dirt or a bug this is your trouble. Be careful not to move the blue tube but take the lens assembly off and clean the surfaces. There are four screw that hold just the lens assembly. The other screws shouldn't be touched. It will need alignment otherwise.

Mar 28, 2009 | Hitachi 50UX57B 50" Rear Projection...

1 Answer

Blue streak at bottem of screen


Hello,

You have the classic "blue blobs," In most of Sony's rear projection LCD's, the Optical block is bad. Manufacturer's defect. The blue panel inside of the optical block starts de-laminating (due to heat from the lamp). This is a very common problem. I have changed about 70-80 optical blocks myself over the course of about 4 years.

There is no other fix but to replace the optical block. Unfortunately, it will get worse, and will probably develop "stars," or stuck pixels, as well. You can call Sony and try to get some assistance, but the extended warranty on these sets has recently expired.

Hope this helps you in some way...

Jan 04, 2009 | Sony Grand WEGA KDF-50WE655 50" Rear...

1 Answer

Zenith d52wlcd 52in rear projection


How this is it? Is it perfect or is it like a blob of blue going down the screen? can you see the picture behind it or is there no picture in that area?

Sep 15, 2008 | Zenith D52WLCD 52" Rear Projection...

1 Answer

Blue screen?


This symptom is not related directly to the lamp.It looks dat the IC STK need to replaced.I think this must be remady of ur problem.

Dec 25, 2007 | Sony Grand WEGA KDF-60XS955 60" Rear...

1 Answer

Blue screen with white snowy circle in the middle of screen


Sounds like bad capacitors
Replacing the C9A37 & C9A38 caps or
problems with some capacitors on the pwd power board, and that it would be good to change them if they were swollen

Oct 20, 2007 | Mitsubishi WD-62525 62" Rear Projection...

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