Question about Sony KP-51HW40 51" Rear Projection Television

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Rear projection TV picture problem

Recently our screen is out of focus. You can see green & pink colors. Are the projectors out of alignment? I have made an appointment with a tech in two weeks. What should something like this cost to repair. TV is only 3 1/2 years old. Brand; SONY 57" Rear projection. Thank you!

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Re: Rear projection TV picture problem

Open up the back and look at the top of the glass leans covers if they are dusty clean it

Posted on Jul 14, 2007

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I have some picture distortion - pink fuzzy color where white should be (like on hockey ice). I'm trying to determine if the t-con board is to blame and if I might fix it easily

Hi Bill.

I don't see a specific model for your TV, but have owned a rear projector system before. There is usually a sub-menu where you can do fine alignment of the Red, Green, and Blue projectors to get rid of the pink fringe. There is generally a white crosshair at center screen where you can fine align the three colors to get rid of the fringing, and sometimes an advanced menu where there are crosses all over the screen that you can individually select and fine tune, (tweaking the different optical distortions of the individual projectors to overlap).

If the fringe is a big swath instead of a fine edge, or if a color is totally gone, then you may be talking power amp issues. For fine fringes, the adjustments usually work fine.

Hoping that helps!

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The tv have a problems known as a convergence problems,it dead.Tv have colors lines R,G,B mis alignments,have colors shadow pictures or 3D pictures look alike?The tv convergence board is dead.The tv convergence board must have replace the 2 STK convergence ICS and some or all of it resistors too.To fixed the tv convergence board to solved the tv convergence picture problems.The shop,will cost u like $300-350 for parts and labors.

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Picture is bowed inward and looks like a 3d image without the glasses. I also have a green, red, and blue line curving across the top of the picture.

Looks like the focusing lens may have moved a bit or the projector lamp has gone weak. Get a technician to check up the projector.

There's very little you can do here.

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The picture all of a sudden became blurred , color convergence is not aligned and there is a pink wave at the top left of the screen and a green wave at the bottom of the screen. When the color is adjusted...

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My zenith big screen tv is out of focus and we cant find any master focus control. How do we fix the focus?

It is unusual for a rear projection to be out of focus since the projectors are fixed. But, it is common for the projectors to be out of alignment, in which case the picture will look like a bad 3D movie of yesteryear.

Go to the setup options / menu, look for the ALIGN option, follow instructions on screen.

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Picture is doubled and color has pink tint

The inherent problem with rear projection TV's.

It sounds like the projectors need balanced (or a lamp is failing) and aligned. The alignment can inadvertently be changed when the TV is moved, and seldom "just happens".

Any decent TV repairman can perform the required service. I would shop locally for one.

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you can get it your tv fix the problem is in the IF amp and video circuit.a convergence will also be neeeded.the tv is old but can give you some more life call a tech they will be your tv doc.

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