Our Sony KDF-E42A10 42 inch LCD TV has yellow hue

There is some color format mismatch. Look for settings and try to correct it. You may go through the operation manuals of both step by step. Also check whether the frequency of the device is same like both are of 50Hz or 60Hz.

LCD optical block problem, its all over the internet, it can be repaired, would be costly.

I have a 2006 SXRD 50" TV. The same thing happened to me as the TV warmed I would get this yellowish tint that started to fill my entire screen. This is due to a bad optic block. Sony actually had a recall on this and was able to get a new one and have it installed. Here is a link explaining what it is. You might still be able to get a new optic block if your model number is affected.

http://www.avsforum.com/avs-vb/showthread.php?t=1086180

Hi,
I'm afraid, it is problem of optical block unit (light engine) that produce picture by 3 lcds inbuilt, the blue lcd and its related uv filters become defective and causing this kind of blue hue on screen.
Complete optical unit block (light engine) will be replaced by qualified tech to get tv fixed, light engine is costly part so ask an estimate before sending tv in.
Thanks.

The optical engine has a build up of dust. This can cause yellow shapes and blotches to appear. It is no easy task on this model to dismantle and clean the engine.

Hello,

If the set is hooked up using Component cables (red, green, blue), then check to make sure the cables are hooked up correctly, and not defective (change them out). If the color problem remains, then the problem may be in the Optics block of the television (which is not unheard of in this unit).

If the menu of the TV displays blotchy discoloration, and the discoloring is the same for every input on the tv (stationary), then it is the Optics, and the optics need to be changed. It is not the easiest job in the world, and the block itself is quite expensive, although the unit my be under an extended warranty from Sony. Contact them directly to see if you can get any help (cost or service-wise). Hope this helps...

Hi JimmyDeps

If there is a yellow hue I would guess that this a LCD TV right ?

Which means that the blue LCD has gone and will have to be replaced.

I have the same TV with the same problems. Sony has issued a recall for these tvs. Contact sony and will fix it for free or give you a discount on another tv.

Hi Guys

The Blue dots or discolouration you are seeing is due too the Blue LCD screen having cracked from excessive heat. This normally happens when you have a power failure while the Television was on. This obviously because the Blue LCD sits next to the lamp - the main cause of heat. The correct part number on the 60" is A-1086-952-A. It is very, very ,expensive.

Sorry to have been the bearer of bad news. Good luck : )

This is a defective CCD problem known to Sony. They will replace it free of charge and even pay for the shipping. For more details go here for the link: http://www.imaging-resource.com/badccds.html